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​​​2016 APS Annual Meeting Presentations

​​The following presentations were recorded during the APS Annual Meeting in
Tampa, FL, July 3 - August 3, 2016.

Pre​sentations are grouped by Session Title. To view the presentation titles use the image to expand/collapse.

16th I.E., Melhus

O antigen functions as a shield during the Xylella fastidiosa-grapevine interaction J. RAPICAVOLI (1) (1) University of California, U.S.A. View Abstract

Evolution of plant pathogenicity in Streptomyces Y. ZHANG (1), D. Bignell (2), R. Zuo (3), Q. Fan (4), J. Huguet-Tapia (1), Y. Ding (3), R. Loria (1) (1) Department of Plant Pathology, University of Florida, U.S.A.; (2) Department of Biology, Memorial University of Newfoundland, Canada; (3) Department o View Abstract | View Presentation

Regulation of denitrification in R. solanacearum A. TRUCHON (1), B. Dalsing (1), C. Allen (1) (1) University of Wisconsin Madison, U.S.A. View Abstract | View Presentation

Complete genome sequences of Xanthomonas axonopodis pv. phaseoli and X. fuscans subsp. fuscans generated by long-read sequence technology M. O'LEARY (1), G. Coaker (1), R. Gilbertson (1) (1) University of California, Davis, U.S.A. View Abstract | View Presentation

A novel transporter and a protein translation component are necessary for fire blight disease development S. KLEE (1), I. Mostafa (2), S. Chen (2), T. McNellis (1) (1) Penn State University, U.S.A.; (2) Department of Biology, University of Florida, U.S.A. View Abstract | View Presentation

A Multidisciplinary Approach to Combating Rose Rosette Disease: Science to Practice

Rose rosette disease: History, symptoms, and viral pathogen. I. TZANETAKIS (1), P. Di Bello (2), T. Druciarek (3) (1) Plant Pathology, University of Arkansas, U.S.A.; (2) Oregon State University, U.S.A.; (3) University of Arkansas, U.S.A. View Abstract | View Presentation

Current state of knowledge on mite transmission and control. R. Ochoa (1), G. Otero-Colina (2), J. Hammond (3), R. Jordan (3), G. Bauchan (1) (1) USDA, ARS, U.S.A.; (2) Colegio de Postgraduados, Mexico; (3) USDA, ARS, US National Arboretum, U.S.A. View Abstract | View Presentation

Development of efficient diagnostic tools to enable rapid, easy-to-use, accurate and affordable detection of Rose rosette virus. F. OCHOA-CORONA (1), A. A.M. Salazar Aguirre (2), S. Molina Cárdenas (2), A. Olmedo-Velarde (2), S. Dobhal (3), J. Olson (1), B. Babu (4), M. Paret (4) (1) Oklahoma State University, U.S.A.; (2) Universidad de las Fuerzas Armadas ESPE, Ecuador; (3) Kansas View Abstract | View Presentation

Identification of sources of resistance and development of hybridization and genetic tools to move resistance into commercial cultivars. D. BYRNE (1), P. Klein (2), M. Yan (2), E. Roundey (2), J. Lau (2) (1) Dept of Horticultural Sciences, Texas A&M University, U.S.A.; (2) Horticultural Sciences, Texas A&M University, U.S.A. View Abstract | View Presentation

Monitoring and management of Rose rosette disease: Volunteer engagement. K. ONG (1) (1) Dept Plant Pathology & Microbiology, Texas A&M AgriLife Extension Service, U.S.A. View Abstract | View Presentation

Bacterial Disease Management

Cybridization: A promising plant resistance for citrus canker control M. MURATA (1), A. Omar (1), C. Chase (2), J. Grosser (1), J. Graham (1) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A. View Abstract | View Presentation

Epidemiology and management of bacterial leaf spot caused by novel Pseudomonas syringae strains on watermelon in Florida E. NEWBERRY (1), L. Ritchie (1), B. Babu (1), T. Sanchez (2), K. Beckham (2), J. Jones (2), J. Freeman (1), N. Dufault (2), M. Paret (1) (1) NFREC, University of Florida, U.S.A.; (2) Department of Plant Pathology, University of Florida, U.S.A. View Abstract | View Presentation

Whole genome sequencing of Xanthomonas perforans identifies effectors that influence breeding strategies S. TIMILSINA (1), P. Abrahamian (2), N. Potnis (3), G. Minsavage (4), F. White (4), B. Staskawicz (5), J. Jones (4), G. Vallad (4), E. Goss (4) (1) University of Florida, U.S.A.; (2) Gulf Coast Research and Education Center, University of Florida, U.S.A.; View Abstract

Biological control of plant pathogenic bacteria G. KRITZMAN (1), G. Kritzman (2) (1) Nobactra, Israel; (2) Nobactra, Israel View Abstract

Investigation of the anti-bacterial activity of SERENADE® ASO against bacterial diseases of crops T. SMITH (1), T. Knobloch (2) (1) Bayer, Crop Science Division - Biologics Research, U.S.A.; (2) Bayer, Crop Science Division - Small Molecule Research, France View Abstract | View Presentation

Bacterial Virulence Regulation

Characterization of RpfB-dependent DSF-Family Quorum Sensing Signal Turnover System in the Phytopathogen Xanthomonas L. ZHOU (1), X. Wang (1), Y. He (1) (1) Shanghai Jiao Tong University, China View Abstract | View Presentation

The in planta regulon of the major Ralstonia solanacearum virulence regulator PhcA D. KHOKHANI (1), T. Tran Minh (1), C. Allen (1) (1) UNIVERSITY OF WISCONSIN-MADISON, U.S.A. View Abstract

Determination of CsrA/RsmA regulon in Xanthomonas citri subsp. citri M. ANDRADE (1) (1) Dept. Microbiology and Cell Science, CREC- University of Florida, U.S.A. View Abstract

Construction of phosphodiesterase mutants in Erwinia amylovora to evaluate the role of cyclic di-GMP in virulence regulation R. KHARADI (1), R. Kharadi (1), L. Castiblanco (1), G. Sundin (1) (1) Michigan State University, U.S.A. View Abstract | View Presentation

Integration of plant host-derived signals to coordinate developmental processes involved in Pantoea stewartii subsp. stewartii biofilm maturation. M. ROPER (1), M. Roper (1) (1) University of California, Riverside, U.S.A. View Abstract | View Presentation

Balancing a Successful Career and Family

Balancing a Successful Career and Family J. CRANE (1), F. Baysal-Gurel (2), M. Brewer (3) (1) Valent BioSciences Corporation, U.S.A.; (2) Tennessee State University, U.S.A.; (3) University of Georgia, U.S.A. View Abstract

Biological and Cultural Disease Management

Grass residues as a sustainable carbon source in application of anaerobic soil disinfestation for control of apple nursery replant disease S. Hewavitharana (1), M. Mazzola (2) (1) Washington State University, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract | View Presentation

Management of Fusarium wilt Tropical race 4 in bananas A. DRENTH (1), J. Henderson (2), A. Drenth (2) (1) The University of Queensland, Australia; (2) The University of Queensland, Australia View Abstract

Organic rice disease management research in the United States X. ZHOU (1), X. Zhou (1) (1) Texas A&M AgriLife Research, U.S.A. View Abstract | View Presentation

Efficacy of biopesticides on root diseases and pests in hydroponic production of vegetables. A. POLEATEWICH (1), R. Buitenhuis (1), M. Brownbridge (1), T. Cranmer (1), A. Summerfield (1) (1) Vineland Research and Innovation Centre, Canada View Abstract | View Presentation

Pseudomonas sp associated with Smilax bona-nox display strong activity against Phytophthora spp G. ALI (1), A. El-Sayed (2), D. Norman (2), M. Brennan (3) (1) University of Florida, U.S.A.; (2) University of Florida/ Institute of Food and Agricultural Sciences, U.S.A.; (3) MREC/University of Florida/ Institute of Food and Agricultural Sciences, U.S. View Abstract

Biology & Disease Mgmt: Bacteriology

Comparative genomic analyses of 15 Acidovorax pathogens provide insights into the emergence of a new turfgrass disease and the host specificity Q. ZENG (1), J. Wang (2), P. Giordano (3), F. Bertels (4), M. Chilvers (5), J. Vargas (5), G. Sundin (5), N. Mitkowski (6) (1) The Connecitcut Agricultural Experiment Station, U.S.A.; (2) Michigan State Univ, U.S.A.; (3) Bayer Corporation, Canada; (4) Uni View Abstract

Improvement of the environmental DNA extraction method for profiling the culturable microbiome of bacterial wilt-conducive and non-conducive soils R. GICANA (1), W. Deng (1), J. Wu (1) (1) National Chung Hsing University, Taiwan View Abstract

Research on Bacterial Endophytes at the Institute for Advanced Learning and Research C. MEI (1), R. Chretien (2), J. Carey (2), Y. He (2), S. Kadali (2), S. Lowman (2) (1) Institute for Advanced Learning and Research, U.S.A.; (2) Institute for Advanced Learning and Research, U.S.A. View Abstract

Bacteriophages: the over-looked component of the phyllosphere of Xanthomonas-diseased plants D. RITCHIE (1), M. Munster (2), S. Butler (2) (1) North Carolina State University, U.S.A.; (2) North Carolina State University and Plant Disease & Insect Clinic, U.S.A. View Abstract

Insights from comparative analyses between the genomes of two model strains of the cucurbit pathogenic bacterium Acidovorax citrulli S. BURDMAN (1), N. Eckshtain-Levi (2), D. Shkedy (3), M. Gershovits (3), G. Mateus da Silva (4), D. Tamir-Ariel (1), R. Walcott (4), T. Pupko (3) (1) The Hebrew University of Jerusalem, Israel; (2) The Hebrew University of Jerusalem , Israel; (3) Tel Aviv View Abstract

Further evidence for host preference among Acidovorax citrulli strains based on a detached melon fruit assay L. YAN (1), R. Walcott (2), B. Hu (1) (1) Nanjing Agricultural University, China; (2) University of Georgia, U.S.A. View Abstract

Effect of biofertilizer applications on bacterial communities in the rhizosphere of citrus affected by huanglongbing J. LI (1), Y. Zhang (2), L. Li (3), U. Handique (2), N. Wang (3) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A.; (3) University of Florida, U.S.A. View Abstract

Impacts of abundance of Candidatus Liberibacter on the citrus phyto-microbiome R. BLAUSTEIN (1), J. Meyer (1), A. Conesa (2), G. Lorca (2), M. Teplitski (1) (1) Soil and Water Science Department, University of Florida, U.S.A.; (2) Microbiology and Cell Science Department, University of Florida, U.S.A. View Abstract

Characterization and Management of Ralstonia solanacearum Causing Bacterial Wilt of Tomato in Louisiana A. JIMENEZ MADRID (1), A. Jimenez (1), M. Lewis Ivey (1) (1) Louisiana State University, U.S.A. View Abstract

Epiphytic survival of Pantoea ananatis on Florida Pusley (Richardia scabra L.) B. DUTTA (1), R. Gitaitis (1), F. Anderson (1) (1) the university of georgia, U.S.A. View Abstract

Modification of chemically defined medium XF-26 for in-vitro cultivation of Xylella fastidiosa and Xylella taiwanensis isolated in Taiwan W. DENG (1), N. Sharma (1), S. Hsu (1), C. Su (2), C. Chang (3), Y. Tseng (1), F. Jan (1) (1) National Chung Hsing University, Taiwan; (2) Taiwan Agricultural Chemicals and Toxic Substances Research Institute, Taiwan; (3) University of Georgia, U.S.A. View Abstract

Development of green fluorescent protein-expressing Xanthomonas gardneri strains to study tomato infection processes F. ROTONDO (1) (1) The Ohio State University, U.S.A. View Abstract

Virulence traits and disease development by Xylella fastidiosa are impaired in a mutant on the outer membrane protein MopB H. CHEN (1), P. Kandel (1), L. Cruz (1), L. De La Fuente (1) (1) Auburn university, U.S.A. View Abstract

Quick genome sequencing of “Candidatus Liberibacter” strains by use of Enrichment-Enlargement-Next generation sequencing (EEN) J. CHEN (1), Z. Zheng (2), F. Wu (3), X. Deng (3) (1) USDA-ARS, U.S.A.; (2) South China Agricultural University, China; (3) South China Agricultural University, China View Abstract

Evaluation of assembling methods on determination of whole genome sequence of Xylella fastidiosa blueberry bacterial leaf scorch strain J. CHEN (1), C. Wallis (1), C. Chang (2) (1) USDA-ARS, U.S.A.; (2) University of Georgia, U.S.A. View Abstract

Exploration of biofilm formation and its potential link to virulence in the Goss’s wilt pathogen Clavibacter michiganensis subspecies nebraskensis M. BOTTI-MARINO (1), M. Botti-Marino (1), J. Jacobs (1), M. Chilvers (1), G. Sundin (1) (1) Michigan State University, U.S.A. View Abstract

The negative regulatory function of tepR for the virulence of Burkholderia glumae in rice is exerted via the quorum-sensing master regulator gene qsmR J. HAM (1), J. Peng (1) (1) Louisiana State University Agricultural Center, U.S.A. View Abstract

Genome analysis of Rathayibacter toxicus strain WAC3373 from Western Australia: sequencing, assembly and annotation M. ARIF (1), G. Busot (1), R. Mann (2), B. Rodoni (2), S. Liu (1), J. Stack (1) (1) Department of Plant Pathology, Kansas State University, U.S.A.; (2) Department of Economic Development, Jobs, Transport and Resources, Latrobe University, Australia View Abstract

Phenotypic effects of anti-Candidatus Liberibacter asiaticus antibody expression in grapefruit T. MCNELLIS (1), T. Gottwald (2), J. Sinn (1), V. Orbovic (3) (1) Penn State University, U.S.A.; (2) USDA ARS, U.S.A.; (3) CREC-University of Florida, U.S.A. View Abstract

Bacterial Communities in Cultivated and Wild Cranberry Bogs S. SOBY (1), G. Ebadzad (1), E. Batory (1) (1) Midwestern University, U.S.A. View Abstract

Host range potential of bacterial soft rot pathogens isolated from Phalaenopsis and Oncidium orchids R. CATING (1), B. Robinson (1), A. Palmateer (2), K. Frost (3) (1) Oregon State University, U.S.A.; (2) University of Florida, U.S.A.; (3) Oregon State University, U.S.A. View Abstract

Biology & Disease Mgmt: Biological Control

Natural products reduce grey mold of tomato caused by Botrytis cinerea F. AHMED (1), A. Alvarez (1), B. Sipes (1) (1) university of hawaii at manoa, U.S.A. View Abstract

Effects of Clonostachys species on charcoal rot disease caused by Macrophomina phaseolina in soybean A. ADESEMOYE (1), H. Wei (1) (1) University of Nebraska Lincoln, U.S.A. View Abstract

Curvularia prsadii as a biological control agent for barnyard grass (Echinochloa crus-galli) in rice fields Y. SHABANA (1), A. Abu Tabl (1) (1) Mansoura University, Egypt View Abstract

Study on Colonization of Strain ZY-9-13 labeled with Green Fluorescent Protein(GFP) Gene within Roots of tobacco and its Biocontrol Effect J. XI (1), J. Song (1), M. Mo (2), C. Xue (1), W. Mou (1), Q. Yin (1) (1) Zhengzhou Tobacco Research Institute of CNTC, China; (2) YUNNAN UNIVERSITY, China View Abstract

Putative biocontrol mechanisms of rice bacterial blight by Bacillus subtilis TKS1-1 T. HUANG (1), Y. Chen (1), Y. Jan (1), Y. Yeh (1), D. Tzeng (1) (1) Department of Plant Pathology, National Chung Hsing University, Taiwan View Abstract

Integration between 2,4-DAPG-producing Pseudomonas and fluquinconazole to control take-all disease of wheat in Chile. E. MOYA ELIZONDO (1), C. Vera (1), R. Madariaga Burrows (2) (1) Universidad de Concepción, Chile; (2) Instituto de Investigaciones Agropecuarias, INIA Quilamapu, Chile View Abstract

Bioactive effect of triterpene extracts in mix with Pseudomonas to control Gaeumannomyces graminis var. tritici on wheat plants E. MOYA ELIZONDO (1), J. González (2), T. Quezada (2), G. Silva (2) (1) Departamento de Producción Vegetal, Universidad de Concepción, Chile; (2) Universidad de Concepción, Chile View Abstract

Field Performance of Endophytic Actinomycetes in Relation to Plant Growth Promotion and Biological Control of Fusarium oxysporum a Pathogen of Tomato K. EL-TARABILY (1), A. Alkhajeh (1) (1) United Arab Emirates University, Uae View Abstract

Identification of volatiles with nematicidal activities from Sphingobacterium nematocida ZY-71-1 and control efficiency to Meloidogyne incognita J. CHANG (1), W. MU (2), J. XI (2), J. SONG (2) (1) Sanmenxia Tobacco Company Lushixian Branch, China; (2) Zhengzhou Tobacco Research Institute of CNTC, China View Abstract

Investigation of antifungal and herbicide volatile terpenes in Streptomyces spp. G. CHO (1), H. Kim (1), J. Kim (2), J. Kim (1), Y. Kwak (2) (1) Division of Applied Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea, South Korea; (2) Institute of Agriculture & Life Science, Gyeongsang National University, Jin View Abstract

Selection and characterization of probiotics for rye silage C. JEON (1), H. Kim (1), J. Kim (1), Y. Kwak (2) (1) Division of Applied Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea, South Korea; (2) Institute of Agriculture & Life Science, Gyeongsang National University, Jinju 52828, R View Abstract

Protection of wheat against Zymoseptoria tritici using sugar beet extract-based resistance inducers A. SIAH (1), S. MEJRI (2), A. GHINET (3), B. RIGO (3), C. ABUHAIE (3), M. MAGNIN-ROBERT (4), B. RANDOUX (4), P. REIGNAULT (4), P. HALAMA (2) (1) Institut Charles Viollette (EA 7394), Institut Supérieur d’Agriculture, France; (2) Institut Charles Viollette View Abstract

Analysis of IAA and ABA in HLB diseased citrus trees Z. PANG (1), H. Wang (1), N. Wang (1) (1) citrus research and educational center, U.S.A. View Abstract

Efficacy of synthetic and biorational products against powdery mildew of flowering dogwood P. LIYANAPATHIRANAGE (1), T. Simmons (1), M. Kabir (1), K. Addesso (1), F. Baysal-Gurel (1) (1) Tennessee State University, U.S.A.; (2) Tennessee State University, U.S.A. View Abstract

Quantitative assessment of the efficacy of ZnO nanoparticles against selected fruit fungal contaminants D. SARDELLA (1), R. Gatt (2), S. Decelis (3), V. Valdramidis (4) (1) University of Malta, Malta; (2) University of Malta, Metamaterials Unit, Malta; (3) Ministry for Health, Malta; (4) University of Malta, Faculty of Health Sciences, Malta View Abstract

Recommendation of Clove oil to minimize Penicillium based postharvest losses in pomegranates (Punica granatum L). M. ALAM (1), M. Alam (2), A. Rehman (3), M. Amin (4), K. Riaz (3) (1) Department of Plant Pathology, University of Agriculture, Faisalabad, Pakistan, Pakistan; (2) Department of Plant Pathology,University of Agriculture Faisalabad, 38040-Pakistan, Pakista View Abstract

Effect of biopestisides on Phytophthora Root Rot Disease of Oakleaf Hydrangea M. KABIR (1), P. Liyanapathiranage (1), T. Simmons (1), F. Baysal-Gurel (1) (1) Tennessee State University, U.S.A. View Abstract

Assessment of three Trichoderma species to protect cabbage from Clubroot A. BOTERO (1), A. Cotes (2), C. García (3) (1) Universidad Nacional de Colombia, Colombia; (2) CORPOICA, Colombia; (3) Universidad Nacional deColombia, Colombia View Abstract

Summary of 11-year field trials of using Heads Up® - a Saponin plant protectant to manage soybean diseases. S. Navi (1), X. Yang (1) (1) Iowa State University, U.S.A. View Abstract

Reduction of soybean sudden death syndrome (Fusarium virguliforme) by seed treatment with Bradyrhizobium japonicum T. HUYNH (1), T. Huynh (1), X. Yang (1), S. Navi (1), X. Li (1) (1) Iowa State University, U.S.A.; (2) Iowa State University, U.S.A. View Abstract

Seasonal dynamics of fungal communities in pistachio and almond in California: implications for aflatoxin biocontrol management A. ORTEGA-BELTRAN (1), R. Puckett (2), T. Michailides (3), D. Morgan (4), J. Moral (3) (1) UC Davis, U.S.A.; (2) UC Davis -KARE, U.S.A.; (3) UC Davis, U.S.A.; (4) UC Davis -KARE, U.S.A. View Abstract

In-vitro control of Calonectria pseudonaviculata by bacteria recovered from irrigation water X. YANG (1), C. Hong (2) (1) Hampton Roads Agricultural Research and Extension Center, Virginia Tech, U.S.A.; (2) Hampton Roads Agricultural Research and Extension Center, Virginia Tech, U.S.A. View Abstract

Isolation of endophytic bacteria associated with roots from citrus infected with Phytophthora nicotianae A. OLIVARES (1), J. Hernandez-Mendoza (1), S. Nelson (2), V. Ancona (1) (1) Texas A&M Kingsville Citrus Center, U.S.A.; (2) Texas A&M Kingsville Citrus Center, U.S.A. View Abstract

Evaluation of Management Practices on the Efficacy of Pasteuria nishizawae As a Biocontrol Agent of Soybean Cyst Nematode. M. LUND (1), S. Conley (1), J. Ané (1) (1) University of Wisconsin-Madison, U.S.A. View Abstract

Evaluation of potential biocontrol agents against fungal plant pathogens affecting strawberry R. BITTER (1), G. Holmes (2) (1) California Polytechnic State University, U.S.A.; (2) Cal Poly Strawberry Center, U.S.A. View Abstract

Antifungal effect of nano sized zero valent iron (nZVI) to special fungal pathogens in paprika and tomato crop M. PARK (1), J. Kim (1), Y. Lee (2), S. Kim (2) (1) Cheorwon Plasma Research Institute, South Korea; (2) Department of Applied Plant Sciences College of Agriculture and Life Sciences/Gangwon National Univ., South Korea View Abstract

Predicting the geographic establishment of introduced mycoparasites S. COHEN (1) (1) Center for Regulatory Research, LLC, U.S.A. View Abstract

Incidence of soybean frogeye leaf spot in Korea and selection for antagonistic bacteria controlling Cercospora sojina Hara I. KANG (1), I. Kang (1), H. Shim (2), D. Shin (2), J. Roh (2), S. Heu (2) (1) National Institute of Crop Science, South Korea; (2) National Institue of Crop Science, South Korea View Abstract

Applications of Bacillus amyloliquefaciens PMB01 for managing Fusarium wilt of cucumber W. DENG (1), H. Chou (2), I. Yang (3), Y. Lin (4), H. Wang (2), S. Chuang (2), T. Huang (2) (1) National Chung Hsing University, Taiwan; (2) Kaohsiung District Agricultural Research and Extension Station, Taiwan; (3) Taiwan Agricultural Mechanization Rese View Abstract

The Role of the Citrus Microbiome in Tree Health and Tolerance to Pathogens N. GINNAN (1), T. Dang (2), P. Ruegger (2), J. Borneman (2), P. Rolshausen (2), G. Vidalakis (2), S. Bodaghi (2), M. Roper (2) (1) University of California Riverside - Department of Plant Pathology and Microbiology, U.S.A.; (2) University of California Ri View Abstract

Functional analyses of the ribosomal and non-ribosomal processed antimicrobial peptides produced by biocontrol bacterium Bacillus pumilus PMB102 W. DENG (1), J. Wu (1), J. Huang (1) (1) National Chung Hsing University, Taiwan View Abstract

Biocontrol of Tubakia leaf blight by Paenibacillus peoriae(HB774) H. YUN (1), Y. Kim (1) (1) Seoul National University, South Korea View Abstract

Characterization and Expression of the Potent Antimicrobial Peptide LsGRP1C Originated from Lilium C. CHEN (1), C. Lin (1), Y. Pan (2), M. Chang (2), F. Liu (2) (1) National Taiwan University, Taiwan; (2) National Taiwan University, Taiwan View Abstract

Leaf applications of Clonostachys rosea reduce the populations of Botrytis cinerea and changes the metabolic profiles of strawberry plants L. Maffia (1), A. Borges (2), W. Araujo (1) (1) Universidade Federal de Vicosa, Brazil; (2) Universidade Federal de Vicosa, Brazil View Abstract

Stopping the cereal killer: exploring biological control to mitigate Fusarium head blight of wheat A. BEHARI (1), G. Kuldau (1) (1) Pennsylvania State University, U.S.A. View Abstract

Acaromyces ingoldii inhibits the laurel wilt pathogen, Raffaelea lauricola in vitro. R. OLATINWO (1), S. Fraedrich (2) (1) USDA Forest Service, Southern Research Station, U.S.A.; (2) USDA Forest Service, Southern Research Station, U.S.A. View Abstract

Linking microbial taxa in SDS-suppressive soils of Soybean fields A. SROUR (1), A. Fakhoury (1), J. Bond (2), L. Leonardo (3), D. Malvick (4) (1) Southern Illinois University, U.S.A.; (2) Southern Illinois University, U.S.A.; (3) Iowa state University, U.S.A.; (4) Univesrity of Minnesota, U.S.A. View Abstract

Evaluation of the biocontrol potential of different Pseudomonas species in suppressing Pythium root rot in petunia plugs D. MARTIN (1), M. Jones (2), C. Taylor (2), F. Peduto Hand (1) (1) The Ohio State University, U.S.A.; (2) The Ohio State University, U.S.A. View Abstract

Infection duration of entomopathogenic fungi Aspergillus spp. and Fusarium spp. against Bemisia tabaci W. Anwar (1), H. Mushtaq (1), M. Haider (1), A. Shahid (1), U. Hameed (1), M. Ur-Rehman (1) (1) Institute of Agricultural Sciences, University of the Punjab, Lahore, Pakistan, 54590, Pakistan View Abstract

Characterization and distribution of natural populations of Cryptococus flavescens across the United States K. PARK (1), J. Shin (1), K. Myeong (1), S. Lee (1), S. Lee (1), M. Kim (1), K. Kim (1) (1) National Institute of Horticultural and Herbal Science, South Korea View Abstract

Isolation and Characterization of Paenibacillus spp. for Biological control of Ginseng root rot F. ROTONDO (1), B. McSpadden Gardner (2), P. Paul (1) (1) The Ohio State University, Wooster, OH, U.S.A.; (2) The Ohio State University, Wooster, U.S.A. View Abstract

Trichoderma asperellum survival and parasitism of Sclerotinia sclerotiorum sclerotia in different soil types M. LOBO (1), A. Geraldine (2), F. Yoshida (3), E. Civardi (3), E. Barbosa (1) (1) Embrapa (Brazilian Agricultural Research Corporation), National Center for Rice and Beans Research, Brazil; (2) Instituto Federal Goiano, Brazil; (3) Universidade Federal de View Abstract

Inhibition of Penicillium expansum growth on Golden Delicious apples by wild yeasts from various plant materials View Abstract

Biocontrol of Fusarium head blight with Bacillus spp. K. BOWEN (1), J. Anderson (1), K. Liu (1) (1) Auburn University, U.S.A. View Abstract

The use of fungal biological control agents to manage SDS, charcoal rot, and damping off in soybean A. WARNER (1), E. Arnao (2), A. Fakhoury (2) (1) Southern Illinois University Carbondale, U.S.A.; (2) Southern Illinois University Carbondale, U.S.A. View Abstract

Developing a quantitative polymerase chain reaction protocol to quantitate root colonization by Bacillus amyloliquefaciens and Bacillus firmus H. MENDIS (1), L. De La Fuente (1), P. Schwientek (2), R. Salamzade (2), V. Thomas (2), J. Kloepper (3) (1) Auburn University, U.S.A.; (2) Bayer CropScience LP, U.S.A.; (3) Auburn University, U.S.A. View Abstract

Biological control of soilborne diseases in organic potato production using hypovirulent strains of Rhizoctonia solani R. LARKIN (1) (1) USDA-ARS, U.S.A. View Abstract

Effects of seed coating "inert ingredients" in the pathogenicity of Fusarium graminearum in soybean. K. Navarro (1) (1) The Ohio State University, U.S.A. View Abstract

Relative efficacy of Zambian atoxigenic Aspergillus flavus strains against aflatoxin-producing Aspergillus species J. AKELLO (1), T. Dubois (2), J. Atehnkeng (3), M. Mukanga (4), H. Njapau (5), J. Augusto (6), P. Cotty (7), R. Bandyopadhyay (3) (1) International Institute of Tropical Agriculture (IITA-Zambia), Zambia; (2) The World Vegetable Center (AVRDC) Eastern and View Abstract

Microscopic analysis of parasitism mode of action by bacterial biological control agents on Cornus florida powdery mildew M. MMBAGA (1) (1) Tennessee State University, U.S.A. View Abstract

The effects of seed coating "inert ingredients" in the virulence of Fusarium graminearum in soybean K. NAVARRO (1) (1) The Ohio State University, U.S.A. View Abstract

Fungal antagonism of bacteria isolated from Cultivated and Wild Cranberry Bogs S. SOBY (1), G. Ebadzad (1), E. Batory (1) (1) Midwestern University, U.S.A. View Abstract

Microbiome networks: A systems framework for identifying candidate microbial assemblages for disease management R. POUDEL (1), A. Jumpponen (2), D. Schlatter (3), T. Paulitz (3), B. McSpadden Gardener (4), L. Kinkel (5), K. Garrett (1) (1) Plant Pathology Department, Institute for Sustainable Food Systems, and Emerging Pathogens Institute, University of Florida, U. View Abstract

The potential use of a Cladosporium sp. as a biological control agent for white mold caused by Sclerotinia sclerotiorum B. ROBINSON (1), R. Cating (2), K. Frost (2) (1) Oregon State University; Hermiston High School, U.S.A.; (2) Oregon State University, U.S.A. View Abstract

Amino acids influence antibiotic production by Pantoea vagans strain C9-1 J. KLEIN (1), V. Stockwell (2), J. Loper (2) (1) Oregon State University, U.S.A.; (2) USDA-ARS, Horticultural Crops Research Unit, U.S.A. View Abstract

Seasonal variation in the antibacterial activity of latex-like resin from Sciadopitys verticillata K. GWINN (1), D. Yates (1), B. Ownley (1), N. Labbe' (1) (1) University of Tennessee, U.S.A. View Abstract

Switchgrass Extractives Inhibit Plant Pathogenic Fungi A. BRUCE (1), B. Ownley (1), J. Tao (1), N. Labbe (1), K. Gwinn (1), D. D'Souza (1), N. Moustaid-Moussa (2) (1) University of Tennessee, U.S.A.; (2) Texas Tech University, U.S.A. View Abstract

Differential Colonization of Tomato Cultivars by the Biocontrol Agent Beauveria bassiana S. YERUKALA (1), M. Dee (1), B. Ownley (1) (1) University of Tennessee, U.S.A. View Abstract

Biology & Disease Mgmt: Chemical Control

Evaluation of host resistance and chemical control to manage white mold of soybean in Ohio J. HUZAR NOVAKOWISKI (1), J. Huzar Novakowiski (1), J. Winger (1), P. Paul (1), A. Dorrance (1) (1) The Ohio State University, U.S.A. View Abstract

Characterization of Diaporthe spp. Cadophora malorum and Neofusicoccum parvum causing cordon dieback in kiwi plant and their chemical control in Chile G. DIAZ (1), M. Lolas (1), B. Latorre (2), E. Ferrada (2), J. Zoffoli (2) (1) Universidad de Talca, Chile; (2) Pontificia Universidad Catolica de Chile, Chile View Abstract

Control of apple rots caused by Phacidiopycnis washingtonensis, Phacidium lacerum y Diplodia seriata in postharvest in Chile G. A (1), M. Caceres (1), M. Lolas (1), C. Pacheco (1), T. Daza (1) (1) Universidad de Talca, Chile View Abstract

Sensitivity of Neofabraea spp strain to newly registered fungicides. P. SIKDAR (1), M. Mazzola (2) (1) Washington State University, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Contribution of protectant fungicides applied as mid-season cover sprays to management of peach brown rot at harvest N. LALANCETTE (1), N. Lalancette (1), L. Blaus (1), J. Gager (1), K. McFarland (2) (1) Rutgers University, Agricultural Research & Extension Center, U.S.A.; (2) Rutgers University, Agricultural Research & Extension Center, U.S.A. View Abstract

Effect of fungicide applications on Monilinia fructicola population diversity and transposon movement M. DOWLING (1), H. Boatwright (1), G. Schnabel (1), P. Bryson (1), J. Wilson (1), Z. Fan (1), S. Everhart (3), P. Brannen (4) (1) Clemson University, U.S.A.; (2) Clemson University, U.S.A.; (3) University of Nebraska, Lincoln, U.S.A.; (4) University of Ge View Abstract

Effects of Penicillin Injection for Citrus HLB Control on Culturable Bacteria in Petioles and Rhizosphere, and Penicillin Resistance K. SHIN (1), M. Ascunce (1), H. Narouei-Khandan (1), X. Sun (2), D. Jones (2), E. Goss (1), A. van Bruggen (1) (1) University of Florida, U.S.A.; (2) Division of Plant Industry, U.S.A. View Abstract

Fungicide resistance profiles and virulence of Stagonosporopsis species isolates from watermelon and melon in eastern China M. NEWARK (1), N. Dufault (1), M. Paret (2), L. Pingfang (3), X. Yang (3) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A.; (3) Jiangsu Academy of Agricultural Science, China View Abstract

Evaluation of fungicide efficacy and cultivar susceptibility for the management of anthracose on celery M. MCDONALD (1), M. McDonald (1) (1) University of Guelph, Canada View Abstract

Laboratory and field evaluation of fungicides for management of Phytophthora blight of pumpkin, caused by Phytophthora capsici M. BABADOOST (1), J. de Souza (2), T. Reboucas (2), Y. Xiang (1) (1) Department of Crop Sciences, University of Illinois, U.S.A.; (2) Deptment of Plant Science, Southwest Bahia University State, Brazil View Abstract

Sensitivity of Podosphaera xanthii isolates from Illinois to fungicides Y. XIANG (1), M. Babadoost (2) (1) University of Illinois, Urbana-Champaign, U.S.A.; (2) Department of Crop Sciences, University of Illinois, U.S.A. View Abstract

Evaluating fungicide sensitivity of regional populations of Blumeria graminis f.sp. tritici in the United States E. MEYERS (1), C. Cowger (2) (1) North Carolina State University, U.S.A.; (2) USDA-ARS Plant Science Research Unit & North Carolina State University, U.S.A. View Abstract

Effect of seedborne Xanthomonas translucens on wheat seed germination C. PEREZ (1), E. Juanicotena (2), O. Bentancur (2), C. Palladino (2) (1) EEMAC, Universidad de la Republica, Uruguay; (2) EEMAC, Universidad de la Republica, Uruguay View Abstract

Characterization and Application of Oil-In-Water Nanoemulsion for Controlling Citrus Huanglongbing M. ZHANG (1), C. Yang (2), C. Powell (1), Y. Duan (3), R. Shatters (3) (1) IRREC-IFAS, University of Florida, U.S.A.; (2) Guangxi University, China; (3) USHRL-USDA-ARS, U.S.A. View Abstract

Screening for QoI resistance among Colletotrichum species associated with ripe rot of grape in Virginia vineyards M. NITA (1), A. Bly (1) (1) Virginia Tech, U.S.A. View Abstract

Progress towards a novel chemical control for common scab disease of potato R. TEGG (1), H. Thompson (2), C. Wilson (1) (1) Tasmanian Institute of Agriculture, University of Tasmania, Australia; (2) Department of Agriculture, Australia View Abstract

Profiling of Resistance to SDHI Fungicides in Botrytis cinerea from Strawberry Fields M. HU (1), D. Fernández-Ortuño (2), G. SCHNABEL (1) (1) Clemson University, U.S.A.; (2) Universidad de Málaga, Spain View Abstract

Greenhouse characterization of hydrazone-copper mixtures as low copper treatments to control early and late blight on tomato C. AVILA-ADAME (1), D. Young (2), J. Webster (2), O. Brian (2), D. Ouimette (2) (1) Dow AgroSciences LLC, U.S.A.; (2) Dow AgroSciences LLC, U.S.A. View Abstract

Efficacy of Oxathiapiprolin toward Phytophthora sojae and Phytophthora sansomeana A. VARGAS (1), M. Eyre (1), A. Dorrance (1) (1) The Ohio State University, U.S.A. View Abstract

Antibacterial potential of Magnesium oxide nanomaterial against Xanthomonas perforans causing bacterial spot of tomato Y. LIAO (1), A. Strayer (1), . White (2), A. Mukherjee (2), W. Elmer (3), L. Ritchie (4), D. Clark (4), J. Freeman (4), J. Jones (1), M. Paret (4) (1) Department of Plant Pathology, University of Florida, U.S.A.; (2) Department of Analytical Chemistry, Th View Abstract

Combined Application of Bacillus amyloliquefaciens ZY-9-13 with Fungicides for Control of Tobacco Black Shank W. MU (1), J. XI (1), C. XUE (1), L. HU (1), J. SONG (1) (1) Zhengzhou Tobacco Research Institute of CNTC, China View Abstract

Screening for phenylamide fungicide insensitivity in Wisconsin hop downy mildew (Pseudoperonospora humuli) populations M. MARKS (1), A. Gevens (1) (1) University of Wisconsin-Madison, U.S.A. View Abstract

Adepidyn™: A new fungicide active ingredient for control of foliar diseases. K. BUXTON (1), T. Harp (1), A. Tally (1), H. Mclean (1) (1) Syngenta Crop Protection, U.S.A.; (2) Syngenta Crop Protection, U.S.A. View Abstract

Citrus Canker as a bioassay for systemic bactericidal activity of Zinc nanoparticles S. COMMERFORD (1), K. Gerberich (1), P. Rajasekaran (2), M. Young (3), S. Das (3), J. Graham (4), S. Santra (3), E. Johnson (1) (1) Citrus Research Education Center, University of Florida, U.S.A.; (2) University of Central Florida, U.S.A.; (3) University View Abstract

Evaluation of the Spatiotemporal Dynamics of Oxytetracycline and Its Control Effect against Citrus Huanglongbing via Trunk Injection J. HU (1), J. Hu (2) (1) University of Florida/IFAS-CREC, U.S.A.; (2) University of Florida, U.S.A. View Abstract

Oxathiapiprolin baseline sensitivity distribution of Phytophthora capsici isolates. G. OLAYA (1), R. Linley (2), K. Edlebeck (2), S. Kousik (3), P. Kuhn (4) (1) Syngenta, U.S.A.; (2) Syngenta, U.S.A.; (3) USDA-ARS, U.S. Vegetable Laboratory, U.S.A.; (4) Syngenta, U.S.A. View Abstract

Characterization of resistance to DMI fungicides in Colletotrichum spp. isolates from peach S. CHEN (1), C. Luo (1), M. Hu (2), G. Schnabel (2) (1) Huazhong Agricultural University, China; (2) Clemson Universitiy, U.S.A. View Abstract

Quantification of the mortality of conidia of Botrytis cinerea and Penicillium digitatum in peracetic acid. J. Smilanick (1), L. Grant (2) (1) consultant, U.S.A.; (2) Jet Harvest Solutions, U.S.A. View Abstract

Season long management of potato silver scurf caused by Helminthosporium solani in Wisconsin S. MACCHIAVELLI-GIRÓN (1), S. Jordan (1), J. Crane (2), A. Gevens (1) (1) University of Wisconsin-Madison, U.S.A.; (2) University of Wisconsin-Madison, U.S.A. View Abstract

Interruption and reduction of Erysiphe necator cleistothecia development utilizing fungicidal oil L. THIESSEN (1), W. Mahaffee (2) (1) Oregon State University, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Pythium species causing damping-off of alfalfa in Minnesota: Identification, pathogenicity and fungicide sensitivity D. Samac (1), L. Berg (2), L. Radmer (2) (1) USDA-ARS, U.S.A.; (2) University of Minnesota, U.S.A. View Abstract

Sensitivity of Sclerotinia sclerotiorum to iprodione and propiconazole in Bangladesh M. ISLAM (1), C. Vrisman (1), S. Miller (1) (1) The Ohio State University, U.S.A. View Abstract

Baseline sensitivities to SDHI fungicides and characterization of the sdhB gene in Venturia inaequalis S. VILLANI (1), K. Ayer (2), K. Cox (2) (1) North Carolina State University, U.S.A.; (2) Cornell University, U.S.A. View Abstract

Resistance of Colletotrichum gloeosporioides from strawberry to azoxystrobin and reduced-sensitivity to thiophanate-methyl M. OLIVEIRA (1), M. Chamorro (1), N. Peres (1) (1) University of Florida, U.S.A. View Abstract

Fungicide efficacy for the control of pomegranate diseases in Florida A. KC (1), G. Vallad (2) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A. View Abstract

Production of Phytophthora nicotianae isolates resistant to oxathiapiprolin R. BITTNER (1), A. Mila (1) (1) North Carolina State University, U.S.A. View Abstract

Nanoparticle encapsulation of seed treatment active ingredients for protection of maize seeds against Fusarium graminearum L. WASHINGTON (1), A. Mullis (2), D. Mayfield (3), B. Narasimhan (2), G. Munkvold (3) (1) Department of Plant Pathology Iowa State University, U.S.A.; (2) Department of Chemical and Biological Engineering Iowa State University, U.S.A.; (3) Department of P View Abstract

Efficacy of three soybean fungicide seed treatments against Pythium species in seed plate and growth chamber assays K. SCOTT (1), A. Vargas (1), M. Eyre (1), A. Dorrance (1) (1) The Ohio State University, U.S.A. View Abstract

Sensitivity of Alternaria spp. causing diseases in tomato and potato to boscalid and azoxystrobin C. VRISMAN (1), M. Islam (1), S. Miller (1) (1) The Ohio State University, U.S.A. View Abstract

Investigating dynamics of QoI fungicide resistance in potato early blight complex pathogens in Wisconsin S. DING (1), K. Meinholz (1), A. Gevens (1) (1) University of Wisconsin-Madison, U.S.A. View Abstract

Evaluation of soil conditioner OR079 for the optimization of metalaxyl in control of Phytophthora nicotianae in Texas citrus orchards P. DUBERNEY (1), J. Hernandez (1), V. Ancona (1) (1) Texas A&M Kingsville Citrus Center, U.S.A. View Abstract

Fungicide sensitivity of Phytophthora infestans isolates collected in Colombia M. PARRA-BASTIDAS (1), L. Cabrera-Villamizar (1), J. Chirivi-Salomon (1), C. Ñústez (2), S. Restrepo (1), G. Danies (1) (1) Universidad de los Andes, Colombia; (2) Universidad Nacional de Colombia, Colombia View Abstract

Fungicide sensitivity of Pythium species from the North Central Region of the United States R. MATTHIESEN (1), A. Robertson (1), M. Chilvers (2) (1) Iowa State University, U.S.A.; (2) Michigan State University, U.S.A. View Abstract

Assessment of acquired resistance of originally sensitive isolates of Phytophthora infestans to the systemic fungicides fluopicolide and propamocarb J. GONZÁLEZ-TOBÓN (1), J. Chirivi-Salomon (1), M. Parra-Bastidas (1), R. Childers (2), S. Restrepo (1), G. Danies (1) (1) Universidad de los Andes, Colombia; (2) Harvard University, U.S.A. View Abstract

Fungicides for management of Sclerotium rolfsii and enhanced overwintering survival of stevia A. KOEHLER (1), H. Shew (1) (1) NCSU, U.S.A. View Abstract

Detection of quinone outside inhibitor resistant isolates of Erysiphe necator in Oregon vineyards B. WARNEKE (1), J. Yamagata (2), T. Neill (3), T. Miles (2), W. Mahaffee (3) (1) Oregon State University, U.S.A.; (2) California State University Monterey Bay, U.S.A.; (3) USDA-ARS, U.S.A. View Abstract

Interaction among leaf area index, spray volumes and fungicide doses in Asian soybean rust control A. CHECHI (1), W. Boller (1), C. Forcelini (1), R. Roehrig (1), E. Zuchelli (1) (1) UPF, Brazil View Abstract

Relationship between fungicide dose and Asian soybean rust control A. CHECHI (1), C. Forcelini (2), W. Boller (2), R. Roehrig (2), E. Zuchelli (2) (1) UPF, Brazil; (2) UPF, Brazil View Abstract

Monitoring Pennsylvania orchards for the presence of streptomycin resistant Erwinia amylovora. H. LAUKAITIS (1), B. Lehman (2), K. Peter (2), M. Baer-Lehman (1) (1) Shippensburg University, U.S.A.; (2) Pennsylvania State University Fruit Research and Extension Center, U.S.A. View Abstract

Etiology and management of sour rot in grapes M. HALL (1), M. Hall (1), G. Loeb (1), W. Wilcox (1) (1) Cornell University, U.S.A. View Abstract

Baseline sensitivities of Rhizopus stolonifer and first effective fungicides for management of almond hull rot in California S. HAACK (1), H. Förster (1), J. Adaskaveg (1) (1) University of California, Riverside, U.S.A. View Abstract

Kasugamycin mixtures with copper, mancozeb, or a thiadiazole improve bactericidal inhibition and efficacy of treatments against walnut blight K. NGUYEN (1), H. Forster (1), L. Wade (2), J. Adaskaveg (3) (1) University of California Riverside, U.S.A.; (2) Arysta LifeScience, U.S.A.; (3) University of California Riverside, U.S.A. View Abstract

Resistance to quinone outside inhibitor fungicides in Cercospora sojina in Ohio L. WEBER (1), A. Dorrance (1) (1) The Ohio State University, U.S.A. View Abstract

Preventative fungicide applications in production and their impact on residual efficacy against impatiens downy mildew in the landscape. S. SUAREZ (1), P. Lopez (1), A. Chase (2), A. Palmateer (1) (1) University of Florida, U.S.A.; (2) Chase Agricultural Consulting, LLC, U.S.A. View Abstract

Yield loss and management of orange cane blotch of blackberry, caused by the alga Cephaleuros virescens F. BROWNE (1), P. Brannen (1), H. Scherm (1), L. Fall (1), J. Taylor (2), J. Shealey (3), E. Beasley (1) (1) University of Georgia, U.S.A.; (2) University of Georgia, U.S.A.; (3) University of Georgia, U.S.A. View Abstract

Presence of fungicide resistant Botrytis strains in Norwegian forest nurseries G. STRØMENG (1), V. Talgø (1), I. Fløistad (1) (1) NIBIO, Norway View Abstract

Effect of kasugamycin application on bacterial resistance to kasugamycin and cross resistance with other antibiotics S. GEBBEN (1), S. Gebben (2), G. McGhee (2), G. Sundin (2) (1) Michigan State University, U.S.A.; (2) Michigan State University, U.S.A. View Abstract

Effectiveness of fungicide treatments following the Strawberry Advisory System for control of Botrytis fruit rots in Florida L. CORDOVA (1), A. Amiri (2), N. Peres (3) (1) University of Florida, U.S.A.; (2) Washington State University, U.S.A.; (3) University of Florida, U.S.A. View Abstract

Fungicide rotation schemes and Melcast for managing Phytophthora fruit rot of watermelon in Southeastern United States C. KOUSIK (1), D. Egel (2), P. Ji (3), L. Quesada-Ocampo (4) (1) U.S. Department of Agriculture, Agricultural Research Service, U.S. Vegetable Laboratory, U.S.A.; (2) Purdue University, U.S.A.; (3) University of Georgia, U.S.A.; (4) North Carolina State U View Abstract

Adepidyn™: A new fungicide active ingredient for control of Fusarium head blight on wheat. T. HARP (1), K. Anaka (2), A. Tally (1) (1) Syngenta Crop Protection, U.S.A.; (2) Syngenta Crop Protection, Canada View Abstract

In-vitro azoxystrobin sensitivity of Colletotrichum gloeosporioides isolates from blueberry in north and central Florida M. VELEZ-CLIMENT (1), P. Harmon (1) (1) University of Florida, U.S.A. View Abstract

Optimizing the systemicity of triazole formulations by enhancing leaf penetration G. POON (1), C. Irwin (2), J. Dinglasan (2), N. Loukine (1) (1) Vive Crop Protection, Canada; (2) Vive Crop Protection, Canada View Abstract

Fungicide sensitivity in the wild rice pathogen Bipolaris oryzae C. CASTELL-MILLER (1), D. Samac (2) (1) PLPA/UMN, U.S.A.; (2) USDA ARS, U.S.A. View Abstract

Increased frequency of multifungicide resistance in Botrytis cinerea M. HU (1), G. Schnabel (1) (1) Clemson University, U.S.A.; (2) Clemson University, U.S.A. View Abstract

Baseline sensitivity of Phyllosticta citricarpa isolates from Florida to succinate dehydrogenase inhibitor fungicides in vitro study K. NICOLETTA (1), M. Dewdney (1) (1) University of Florida, Citrus Research and Education Center, U.S.A. View Abstract

Resistance of Botrytis cinerea to fungicides in California strawberries S. COSSEBOOM (1), G. Schnabel (2), K. Ivors (1), G. Holmes (1) (1) Cal Poly State University, U.S.A.; (2) Clemson University, U.S.A. View Abstract

Monitoring Colletotrichum acutatum Resistance to Quinone-outside Inhibitor Fungicides in Strawberry B. FORCELINI (1), B. Forcelini (1), N. Peres (1) (1) University of Florida, U.S.A. View Abstract

Management of Fusarium Head Blight and DON in Alabama K. BOWEN (1), N. Sharma (1), N. McMaster (2), J. Jones (3), M. Pegues (3) (1) Auburn University, U.S.A.; (2) Virginia Tech, U.S.A.; (3) Alabama Agricultural Experiment Station, U.S.A. View Abstract

Response of Early and Late Leaf Spot Diseases on Peanut to QoI Solo Spray Programs W. ELWAKIL (1), N. Dufault (1) (1) University of Florida, U.S.A. View Abstract

Reducing initial infections of apple scab and black rot with salicylic acid and Actigard applied as trunk injections or sprays. P. ABBASI (1), G. Braun (2), E. Bevis (2), S. Fillmore (2) (1) Agriculture and Agri-Food Canada, Canada; (2) Agriculture and agri-Food Canada, Canada View Abstract

Evaluation of conventional and biological pesticides for managing tomato bacterial spot during transplant production P. ABRAHAMIAN (1), J. Jones (2), G. Vallad (1) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A. View Abstract

Sensitivity of Sclerotinia sclerotiorum to thiophanate-methyl, fluazinam, and procymidone. M. Lehner (1), R. Silva (1), T. Paula Jr. (2), E. Mizubuti (1) (1) Universidade Federal de Vicosa, Brazil; (2) EPAMIG, Brazil View Abstract

Effect of fungicide timing and frequency on reducing foliar diseases and yield loss on runner and valencia type peanuts in Haiti A. FULMER (1), T. Brenneman (1), R. Kemerait (1) (1) University of Georgia, U.S.A. View Abstract

Managing QoI-resistant Cercospora sojina in Mississippi soybean and assessing the physiological impacts of foliar fungicide phytotoxicity J. MANSOUR (1), M. Tomaso-Peterson (2), A. Henn (2), J. Bond (1), T. Irby (2) (1) Mississippi State University, U.S.A.; (2) Mississippi State University, U.S.A. View Abstract

Evaluation of a novel antimicrobial compound to control growth and biofilm formation in vitro of citrus bacterial pathogens H. MENDIS (1), E. Naranjo (1), S. Santra (2), M. Young (2), E. Johnson (3), P. Rajasekaran (2), L. De La Fuente (1) (1) Auburn University, U.S.A.; (2) University of Central Florida, U.S.A.; (3) Citrus Research and Education Center, University of Florida, View Abstract

Characterization of fungicide resistance phenotypes in Botrytis cinerea populations from blueberry in Florida A. AMIRI (1), A. Zuniga (2), P. Harmon (2), N. Peres (2) (1) Washinton State University, U.S.A.; (2) University of Florida, U.S.A.; (3) University of Florida, U.S.A.; (4) University of Florida, U.S.A. View Abstract

Timing of fungicide applications is critical for blackleg control in canola L. DEL RIO MENDOZA (1), S. Ruud (1), S. Mansouripour (1) (1) North Dakota State University, U.S.A. View Abstract

Prevalence of metalaxyl resistance in Pythium populations in dryland agriculture in the US Pacific Northwest W. CHEN (1), S. Guy (2), R. McGee (3), T. Paulitz (1), L. Porter (4), K. Schroeder (5), G. Vandemark (1) (1) USDA ARS, Washington State University, U.S.A.; (2) Wasington State University, U.S.A.; (3) USDA ARS, U.S.A.; (4) USDA ARS, Washington State Univer View Abstract

Assessment of QoI Resistance in Colletotrichum spp. Isolated from Boxthorn and Apple in Korea S. KIM (1), J. Min (1), D. Back (1), H. Kim (1), S. Lee (1), K. Kim (1) (1) Chungbuk National University, Korea View Abstract

G143A mutation in cytochrome b is found in azoxystrobin resistant Phytophthora cactorum but not in resistant Phytophthora nicotianae from strawberry. T. SEIJO (1), E. Zuchelli (2), N. Peres (1) (1) University of Florida - GCREC, U.S.A.; (2) Universidade de Passo Fundo, Brazil View Abstract

High-throughput strobilurin sensitivity testing of R. solani on Louisiana rice confirms reduced azoxystrobin but continued trifloxystobin sensitivity A. LUNOS (1), C. Hollier (1), L. Brooks (1), S. Harding (1) (1) Dept. of Plant Pathology & Crop Physiology, LSU AgCenter, U.S.A. View Abstract

Podosphaera xanthii strains with resistance and reduced sensitivity to several fungicides may challenge control of cucurbit powdery mildew M. McGrath (1) (1) Cornell University, U.S.A. View Abstract

Fungicide sensitivity of Monilinia vaccinii-corymbosi in highbush blueberries in Michigan K. FITZGERALD (1), J. Gillett (1), A. Schilder (1) (1) Michigan State University, U.S.A. View Abstract

Fungicide resistance in populations of Fusarium proliferatum causing bulb rot of onion in the Pacific Northwest. K. Fairchild (1), S. Windes (1), A. Malek (1), J. Woodhall (2), P. Wharton (1) (1) University of Idaho, U.S.A.; (2) University of Idaho, U.S.A. View Abstract

Management of mefenoxam-resistant isolates of Pythium ultimum causing pythium leak on potato in the Pacific Northwest. I. CARRILLO (1), P. Wharton (1), K. Fairchild (1), L. Porter (2), K. Frost (3), P. Hamm (3) (1) University of Idaho, U.S.A.; (2) USDA-ARS, U.S.A.; (3) Oregon State University, U.S.A. View Abstract

Induced overexpression of the gene MfCYP51 may reveal molecular mechanisms associated to tebuconazole resistance of Monilinia fructicola in Brazil. P. LICHTEMBERG (1), Y. Luo (1), T. Michailides (1), L. May De Mio (2) (1) University of California - Davis, U.S.A.; (2) Universidade Federal do Paraná, Brazil View Abstract

Evaluation of Nematicides for Control of Southern Root-Knot Nematodes in Lima Bean J. JONES (1), G. Johnson (1), N. Kleczewski (1), J. Desaeger (2) (1) University of Delaware, U.S.A.; (2) DuPont Crop Protection, U.S.A. View Abstract | View Presentation

Biology & Disease Mgmt: Cultural Control

Fertigation and soil acidification sustain root density of huanglongbing-infected trees in Florida citrus groves J. GRAHAM (1), E. Johnson (1), K. Gerberich (2), D. Bright (1) (1) University of Florida, U.S.A.; (2) University of Florida, Canada View Abstract

Evaluation of disinfectant treatments to reduce transmission of Didymella bryoniae during watermelon grafting A. KEINATH (1), V. DuBose (2), C. Conrad (2) (1) Clemson University, U.S.A.; (2) Clemson University, U.S.A. View Abstract

Effective treatments for eradication of Xanthomonas cucurbitae in pumpkin seed X. ZHANG (1), M. Babadoost (2) (1) Department of Crop Sceinces, University of Illinois, U.S.A.; (2) Department of Crop Sciences, University of Illinois, U.S.A. View Abstract

Status of Huanglongbing (HLB) (citrus greening) Multi Agency Coordination (MAC) projects on thermal treatment of citrus trees with citrus greening D. KOMM (1), D. Komm (2), R. Ehsani (3) (1) USDA PPQ CPHST, U.S.A.; (2) USDA, U.S.A.; (3) Univeristy of Florida, U.S.A. View Abstract

Addition of supplemental spent lime to previously limed soils for control of Aphanomyces root rot on sugar beet J. BRANTNER (1) A. Chanda (1); (1) University of Minnesota, U.S.A. View Abstract

Thermal inactivation of Calonectria pseudonaviculata, the causal agent of boxwood blight M. MILLER (1), M. Cubeta (2) (1) North Carolina State University, Department of Plant Pathology, U.S.A.; (2) North Carolina State University, U.S.A. View Abstract

Assessment of in-vitro efficacy of different disinfectants against common bacterial diseases on woody ornamentals P. LIYANAPATHIRANAGE (1), S. Dawadi (1), M. Kabir (2), T. Simmons (1), F. Baysal-Gurel (1) (1) Tennessee State University, U.S.A.; (2) Tennessee State University, U.S.A. View Abstract

Inoculum sources of Xanthomonas fragariae in strawberry nursery packing houses: presence, viability and transmission H. WANG (1), C. Gigot (2), N. McRoberts (2), W. Turechek (3) (1) EDISTO Research and Education Center, Clemson University, U.S.A.; (2) University of California, U.S.A.; (3) U.S. Horticultural Research Laboratory, USDA, U.S.A. View Abstract

Scab severity in relation to hedge pruning pecan trees in the Southeastern USA C. BOCK (1), M. Hotchkiss (1), T. Brenneman (2), K. Stevenson (2), B. Goff (3), M. Smith (4), L. Wells (5), B. Wood (1) (1) USDA-ARS SE Fruit & Tree Nut Research Laboratory, U.S.A.; (2) Department of Plant Pathology, University of Georgia, U.S.A.; (3) Dep View Abstract

Study of the influence of winter rye on soybean seedling and root rot diseases G. ARALDI-DA-SILVA (1), T. Kaspar (2), M. Helmers (1), D. Mueller (1), L. Leandro (1) (1) Iowa State University, U.S.A.; (2) USDA, U.S.A. View Abstract

Eradication of the boxwood blight pathogen, Calonectrua pseudonaviculata, in compost R. HARVEY (1), D. Davis (1), J. Pecchia (1) (1) Penn State University, U.S.A. View Abstract

Adapting to water insecurity: Co-managing oomycete pathogens and water use using deficit irrigation sensor networks J. DEL CASTILLO MÚNERA (1), C. Swett (1), B. Belayneh (1), A. Ristvey (2), J. Lea-Cox (1) (1) University of Maryland, U.S.A.; (2) University of Maryland, U.S.A. View Abstract

Nutrients and in vitro growth of Phaeocryptopus gaeumannii, a fungus causing the Swiss needle cast disease on Pseudotsuga menziesii M. Yáñez-Morales (1), O. Salgado-Feregrino (1), J. Velázquez-Mendoza (1), M. Jiménez-Casas (1) (1) Colegio de Postgraduados, Mexico View Abstract

Canopy and root response of HLB-affected citrus trees to steam-generated thermotheray N. Thapa (1), S. Commerford (1), R. Ehsani (1), E. Johnson (1), M. Dewdney (1) (1) CREC, University of Florida, U.S.A. View Abstract

Using soil amendments to reduce survival of Botrytis cinerea sclerotia in Mid-Atlantic diversified farming systems E. KOIVUNEN (1), E. Koivunen (1), C. Swett (1) (1) University of Maryland, U.S.A. View Abstract

Silicon Augments Xanthomonas gardneri symptoms in Tomato cv. Early Girl W. ZELLNER (1), C. Krause (2), J. Locke (1), J. Boldt (1), S. Leisner (3) (1) USDA-ARS, U.S.A.; (2) USDA-ARS, U.S.A.; (3) The University of Toledo, U.S.A. View Abstract

Reduced Macrophomina phaseolina colonization of soybean by supplementing with the secondary nutrients calcium and magnesium T. WILKERSON (1), M. Tomaso-Peterson (2), B. Golden (3), A. Brown (4), T. Allen (3) (1) Mississippi State University, U.S.A.; (2) Mississippi State University, U.S.A.; (3) Mississippi State University Delta Research and Extension Center, U.S.A.; (4) Missi View Abstract

Evaluating biodegradation treatments for the reduction of inoculum and incidence of citrus black spot Phyllosticta citricarpa in Florida citrus groves K. RODRIGUES (1), T. Hobbs (1), M. Dewdney (1) (1) CREC, University of Florida, U.S.A. View Abstract

Potential of heat treatment for management of Botrytis cinerea resistance on strawberry A. ZUNIGA (1), N. Peres (1) (1) University of Florida, U.S.A. View Abstract

Utility of compost tea for disease management in grapes. G. KOTAMRAJU (1), R. Sysak (1), J. Gillett (1), A. Schilder (1) (1) Michigan State University, U.S.A. View Abstract

Biology & Disease Mgmt: Genetics of Resistance

EXPLORING THE SLOW RUSTING POTENTIAL OF WHEAT GENOTYPES AGAINST LEAF AND STRIPE RUST OF WHEAT M. RAZA (1), M. Khan (2), M. Yaseen (3), F. Nutter (4) (1) Department of Plant Pathology and Microbiology, Iowa State University of Science and Technology, U.S.A.; (2) Department of Plant Pathology, University of Agriculture Faisalabad, Pakistan; (3) Depa View Abstract

Response of sweet sorghum lines to stalk pathogens Fusarium thapsinum and Macrophomina phaseolina D. FUNNELL-HARRIS (1), P. O'Neill (1), S. Sattler (1) (1) USDA-ARS; Grain, Forage and Bioenergy Research Unit, U.S.A. View Abstract

Adaptation to quantitative resistance in the hop cultivar Cascade by Podosphaera macularis D. GENT (1), D. Gent (1), M. Twomey (2), S. Wolfenbarger (2) (1) USDA Agricultural Research Service, U.S.A.; (2) Oregon State University Department of Botany and Plant Pathology, U.S.A. View Abstract

Identifying onion cultivars with reduced susceptibility to center rot J. MAZZONE (1), B. Gugino (2), M. Mansfield (2) (1) The Pennsylvania State University, U.S.A.; (2) The Pennsylvania State University, U.S.A. View Abstract

Evaluating soybean breeding lines developed from different sources of resistance to Phomopsis seed decay S. LI (1), J. Smith (1) (1) USDA-ARS, Crop Genetics Research Unit, U.S.A. View Abstract

Resistance to Claviceps purpurea (Fr.) Tul. in the winter wheat lines “Robigus” and “Solstice”. J. MENZIES (1), A. Gordon (2), D. O'Sullivan (3) (1) Agriculture and Agri-Food Canada, Canada; (2) National Institute of Agricultural Botany, United Kingdom; (3) University of Reading, United Kingdom View Abstract

Susceptibility of Buxus accessions to the boxwood blight pathogen Calonectria pseudonaviculata J. LAMONDIA (1) (1) The Connecticut Agricultural Experiment Station, U.S.A. View Abstract

Lack of interaction between Fusarium oxysporum f. sp. niveum and Meloidogyne incognita on cucurbit rootstocks resistant to Fusarium wilt of watermelon A. KEINATH (1), P. Agudelo (1) (1) Clemson University, U.S.A.; (2) Clemson University, U.S.A. View Abstract

Analysis of Resistance to Blast Isolates and Mapping of Rice Blast Resistance Gene in T2 Q. YANG (1), D. Sun (2), G. Chen (2), J. Zhang (2), D. Zhou (3), X. Zhu (2), H. Wang (3), Z. Chen (3) (1) Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, China; (2) Institute of Plant Protection, Guangdong Academy of Agricultura View Abstract

Genetic characterization of quantitative resistance to Bremia lactucae, the causal organism of lettuce downy mildew. L. Parra (1), I. Simko (2), R. Michelmore (3) (1) UC Davis- Genome center, U.S.A.; (2) USDA-ARS, U.S.A.; (3) UC Davis-Genome Center, U.S.A. View Abstract

Effectiveness of a seed plate assay evaluating charcoal rot resistance in soybean M. DA SILVA (1), P. Chen (1), J. Rupe (1) (1) University of Arkansas, U.S.A. View Abstract

Differential effects of stalk rot diseases on photosystem II photochemical efficiency among resistant and susceptible sorghum lines. A. BANDARA (1), D. Weerasooriya (1), T. Tesso (1), C. Little (1) (1) Kansas State University, U.S.A. View Abstract

Cavity spot of carrots: progress in screening for resistance M. MCDONALD (1), M. McDonald (2) (1) University of Guelph, Canada; (2) University of Guelph, Canada View Abstract

Introgression of crown rot resistance into cultivated squash Cucurbita moschata, C. maxima and C. agyrosperma S. ZHANG (1), Y. Fu (1), P. Moon (1), C. Waddill (1) (1) Tropical Research and Education Center, University of Florida, IFAS, U.S.A. View Abstract

Two SREBP Transcription Factors are Required for Ergosterol Biosynthesis and DMI Resistance in Penicillium digitatum R. RUAN (1) (1) Institute of Biotechnology, Zhejiang University, China View Abstract

Transgenic expression of pattern recognition receptor EFR in tomato leads to effective field resistance to bacterial wilt S. KUNWAR (1), S. Kunwar (1), E. Evaristo da Silva (2), F. Iriarte (2), L. Ritchie (2), D. Clark (2), J. Freeman (2), R. Stall (3), J. Jones (3), J. Minsavage (3), C. Zipfel (4), D. Horvath (5), M. Paret (2) (1) University of Florida, U.S.A.; (2) North Fl View Abstract

QTL Mapping of Resistance to Tan Spot in a Winter Recombinant Inbred Line Population Derived from Cross between Harry and Wesley G. KARIYAWASAM (1), W. Hussain (2), A. Easterly (2), M. Guttieri (2), V. Belamkar (3), J. Venegas (2), S. Baenziger (2), J. Poland (4), J. Faris (5), S. Xu (5), J. Rasmussen (1), Z. Liu (1) (1) North Dakota State University, U.S.A.; (2) University of Nebr View Abstract

Screening of Wild Hop (Humulus lupulus) Germplasm for Identification of Resistance to Pseudoperonospora humuli J. HAVILL (1), A. Orshinsky (1), D. Carter (1), S. Poulose (1) (1) University of Minnesota, U.S.A. View Abstract

Virulence of Calonectria pseudonaviculata and C. henricotiae isolates and screening for resistant boxwood cultivars in detached leaf assays H. Guo (1), J. Crouch (2), M. Pooler (3) (1) USDA-ARS and Rutgers University, U.S.A.; (2) USDA-ARS Systematic Mycology and Microbiology Laboratory, U.S.A.; (3) USDA-ARS US National Arboretum, U.S.A. View Abstract

Assessment of genetic diversity and virulence spectrum of Magnaporthe oryzae population from sub-Saharan Africa DEVI GANESHAN (1), S. Mutiga (2), F. Rotich (3), D. Mwongera (4), J. Harvey (5), B. Zhou (6), L. Wasilwa (7), G. Wang (1), D. Silue (8), O. Ibrahima (9), J. Correll (3), N. Talbot (10), T. Mitchell (1) (1) The Ohio State University, Department of Plant, (2) Biosciences eastern and central Africa (BecA) Hub, Nairobi, Kenya; (3) University of Arkansas, Department of Plant Pathology, AR, U.S.A.; (4) University of Exeter, United Kingdom; (5) Biosciences eastern and central Africa (BecA) Hub, Kenya; (6) International Rice Research Institute, Philippines; (7) Kenya Agricultural and Livestock Research Organization, Kenya; (8) AfricaRice Center, Ivory Coast; (9) INERA, Burkina faso; (10) University of Exeter, Department of Biosciences, United Kingdom View Abstract

Development of molecular makers for spinach resistance genes to downy mildew disease C. FENG (1), J. Correll (1) (1) University of Arkansas, U.S.A. View Abstract

Scab susceptibility of a provenance collection of pecan C. BOCK (1), L. Grauke (2), P. Conner (3), S. Burrell (1), M. Hotchkiss (1), D. Boykin (4), B. Wood (1) (1) USDA/ARS SE Fruit & Tree Nut Research Laboratory, U.S.A.; (2) USDA/ARS Pecan Breeding and Genetics, U.S.A.; (3) University of Georgia, U.S.A.; (4) View Abstract

Gene-For-Gene in Fusiform Rust Disease of Loblolly Pine K. SMITH (1), D. Ence (2), D. Nelson (3), M. Yandell (2), J. Davis (4) (1) USDA Forest Service, U.S.A.; (2) University of Utah, U.S.A.; (3) USDA Forest Service, U.S.A.; (4) University of Florida, U.S.A. View Abstract

Plant defensins inhibit growth of pathogens in the alfalfa crown rot disease complex A. SATHOFF (1), D. Samac (2) (1) University of Minnesota, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Screening soybean germplasm for resistance towards Pythium species K. SCOTT (1), M. Eyre (1), A. Dorrance (1) (1) The Ohio State University, U.S.A. View Abstract

Wheat yellow rust dynamics in Tunisia since 2013 and resistance genes in durum wheat B. BAHRI (1), M. Leconte (2), S. Hamza (1), C. de Vallavieille Pope (2) (1) National Agronomic Institute of Tunisia, Tunisia; (2) UMR BIOGER, INRA, AgroParisTech, Université Paris-Saclay, France View Abstract

Identification of resistance genes and resistance gene analogs by si-RNA sequencing of the sweet potato leaf phytobiome A. ALLEYNE (1), A. Alleyne (2), M. James (3), D. Gutierrez (4), S. Fuentes (4) (1) The University of the West Indies- Cave Hill Campus, Barbados; (2) The University of the West Indies-Cave Hill Campus, Barbados; (3) Ministry of Agriculture, Food and Water View Abstract

Barley yellow dwarf incidence and bird cherry-oat aphid preference in four wheat varieties in Idaho M. Rashidi (1), J. Marshall (1), N. Bosque-Perez (2), A. Rashed (1), (1) University of Idaho, Aberdeen Research and Extension Center, U.S.A.; (2) University of Idaho, Department of Plant, Soil and Entomological Sciences, U.S.A. View Abstract

Exserohilum turcicum races causing northern leaf blight of corn in the North Central United States J. Weems (1), C. Bradley (1) (1) University of Kentucky, U.S.A. View Abstract

Exploring gene loci controlling bakanae disease resistance by genome-wide association mapping S. CHEN (1), K. Huang (2), Y. Kuo (2), M. Lai (3), D. Wu (3), C. Chung (1) (1) Department of Plant Pathology and Microbiology, National Taiwan University, Taiwan; (2) Department of Bio-Industrial Mechatronics Engineering, National Taiwan University, Taiwa View Abstract

Melampsora rust running amuck: Exploring willow rust population diversity in the Northeast United States. C. CROWELL (1), M. Bekauri (1), C. Carlson (2), F. Gouker (2), L. Smart (2), C. Smart (1) (1) Cornell University Plant Pathology and Plant-Microbe Biology Section, U.S.A.; (2) Cornell University Horticulture Section, U.S.A. View Abstract

Development of a molecular marker platform for the breeding of blast resistance varieties in Taiwan W. CHEN (1), W. Shen (1), F. Chang (2), W. Chang (3), Z. Yu (1), J. Liao (1), M. Lai (4), C. Wu (2), C. Chung (1) (1) National Taiwan University, Taiwan; (2) Kaohsiung District Agricultural Research and Extension Station, Taiwan; (3) Taoyuan District Agri View Abstract

Evaluating nine boxwood cultivars for susceptibility to Calonectria pseudonaviculata and C. henricotiae. N. SHISHKOFF (1) (1) Foreign Disease Weed Science Research Unit/ARS/USDA, U.S.A. View Abstract

Early detection of adult plant resistance to oat crown rust using a qPCR assay B. YIMER (1), B. Yimer (2), T. Gordon (2), J. Bonman (2) (1) USDA-ARS, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

The SimpleSynteny Server: Genome Comparison Simplified D. VELTRI (1), M. Malapi-Wight (2), J. Crouch (1) (1) USDA-ARS, U.S.A.; (2) USDA-APHIS, U.S.A. View Abstract

Disease susceptibility screening for cold-climate wine grape cultivars D. JONES (FORMERLY SCHREINER) (1), P. McManus (2) (1) University of Wisconsin, Madison Dept. of Plant Pathology, U.S.A.; (2) University of Wisconsin Madison Dept. of Plant Pathology, U.S.A. View Abstract

Mitigating the effects of shoot blight caused by Erwinia amylovora by enhancing plant systemic resistance B. LEHMAN (1), C. Bower (1), K. Peter (1) (1) Penn State University, U.S.A. View Abstract

Chemical association of potato susceptibility to Rhizoctonia solani X. Y. ZHANG (1, 2), H. H. Jiang (2), J. J. Hao (2); (1) College of Agronomy, Inner Mongolia Agricultural University, Hohhot, China; (2) School of Food and Agriculture, University of Maine, Orono, ME, U.S.A. View Abstract

Molecular mapping of effective stripe rust resistance genes in wheat germplasm PI 182126 X. CHEN (1), J. Feng (2), M. Wang (3) (1) USDA-ARS and Washington State University, U.S.A.; (2) Department of Plant Pathology, Washington State University, U.S.A.; (3) Department of Plant Pathologist, Washington State University, U.S.A. View Abstract

Screening soybean germplasm for resistance to multiple Fusarium species P. OKELLO (1), L. Hyronimus (1), A. Weber (1), A. Singh (2), F. Mathew (1) (1) South Dakota State University, U.S.A.; (2) Iowa State University, U.S.A. View Abstract

Development of an in vitro bioassay to screen perennial Phlox germplasm for susceptibility to Golovinomyces cichoracearum (Erysiphe cichoracearum) C. FARINAS (1), P. Jourdan (1), F. Peduto Hand (1) (1) The Ohio State University, U.S.A. View Abstract

Quantitative resistance loci identified for the bacterial blight causative agent, Xanthomonas oryzae pv. oryzae A. HUERTA (1), E. Delorean (2), A. Bossa-Castro (2), C. Raghavan (3), R. Corral (2), V. Verdier3 (4), H. Leung (5), J. Leach (2) (1) Colorado State University, U.S.A.; (2) Department of Bioagricultural Sciences and Pest Management, Colorado State Universi View Abstract

Accelerating the pace of developing FHB resistant two-row malting barley: genomic selection approach D. FERNANDO (1), J. Tucker (2), A. Badea (2), W. Legge (2) (1) University of Manitoba, Canada; (2) Brandon Research and Development Centre, Agriculture and Agri-Food Canada, Canada View Abstract

Induction of resistance in cultivated peanut against peanut early leaf spot by salicylic acid K. BOWEN (1), L. Gong (2) (1) Auburn University, U.S.A.; (2) Auburn University, U.S.A. View Abstract

Development and evaluation of germplasm lines resistant to Sclerotinia stem rot M. MCCAGHEY (1), M. McCaghey (1), J. Willbur (1), C. Grau (2), S. Chapman (2), B. Diers (3), C. Groves (2), A. Ranjan (2), M. Kabbage (2), D. Smith (1) (1) University of Wisconsin- Madison, U.S.A.; (2) University of Wisconsin- Madison, U.S.A.; (3) Univers View Abstract

Effectiveness of adult plant resistance to wheat stem rust is specific to Puccinia graminis f. sp. tritici race M. ROUSE (1), J. Briggs (2) (1) USDA-ARS, U.S.A.; (2) University of Minnesota, U.S.A. View Abstract

Monitoring of Leaf rust in seventeen Egyptian wheat cultivars during 2013/2014 and 2014/2015 seasons. A. ABDELRHIM (1), M. Abou-Zeid (2), H. Abd-Alla (3), C. Cowger (4), A. El-Bana (3), M. Ismail (3) (1) North Carolina State University, U.S.A.; (2) Agriculture research center, Giza, Egypt, Egypt; (3) Minia University, Egypt; (4) North Carolina State Unive View Abstract

Genome-wide association study oF transmission of Soybean mosaic virus through seed Q. Liu (1), H. Hobbs (1), L. Domier (2) (1) University of Illinois, U.S.A.; (2) USDA-ARS, University of Illinois, U.S.A. View Abstract

Resistance in pea to the Bean leaf roll virus L. PORTER (1), L. Porter (2) (1) USDA ARS, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Identification of Brassica napus plant introductions with resistance to pathogenicity group 4 of Leptosphaeria maculans S. MANSOURIPOUR (1), L. del Rio Mendoza (1) (1) North Dakota State University, U.S.A. View Abstract

A novel vector system to engineer begomovirus resistance in transgenic plants by transcriptional and post-transcriptional gene-silencing mechanisms C. TAI (1), J. Chen (2), F. Jan (1) (1) Department of Plant Pathology, National Chung Hsing University, Taiwan; (2) Department of Agronomy, National Chung Hsing University, Taiwan View Abstract

Marker development and fine-mapping for the Phytophthora crown rot resistance locus, Pc1, in strawberry Y. NOH (1), J. Mangandi (1), S. Verma (1), V. Whitaker (1), S. Isobe (2), J. Cha (3), S. Lee (1) (1) University of Florida, U.S.A.; (2) Kazusa DNA Research Institute, Japan; (3) Chungbuk National University, South Korea View Abstract

Evaluating chemical fingerprinting as a tool to rapidly screen hybrid chestnut for resistance to pathogens A. CONRAD (1), J. Westbrook (2), T. Zhebentyayeva (3), L. Rodriguez-Saona (4), P. Bonello (4), C. Nelson (5), A. Abbott (1) (1) University of Kentucky, U.S.A.; (2) The American Chestnut Foundation, U.S.A.; (3) Clemson University, U.S.A.; (4) The Ohio Stat View Abstract

SNP variation in switchgrass disease resistance genes B. BAHRI (1), G. Daverdin (2), J. Cheng (3), K. Barry (3), S. Smith (4), K. Devos (5) (1) Dept. of Plant Protection, National Agronomic Institute of Tunisia/ Dept. of Crop and Soil Sciences, University of Georgia, U.S.A.; (2) Marucci Center for Blueberry View Abstract

Exploiting the approaches of biotechnology in sweetpotato for virus diseases resistance Y. MENG (1), Y. Meng (2), C. Zhang (2), V. Njiti (2) (1) Alcorn State University, U.S.A.; (2) Alcorn State University, U.S.A. View Abstract

Biology & Disease Mgmt: Integrated Pest Mgmt

Monitoring pomegranate pathogens towards developing effective disease management program A. KC (1), G. Vallad (1) (1) University of Florida, U.S.A. View Abstract

Production practices impact yield parameters and disease severity on sweet and forage sorghum grown as biomass feedstock A. HAGAN (1), S. Scott (1), K. Bowen (1) (1) Auburn University, U.S.A. View Abstract

Anthracnose impacts biomass and sugar yield of forage but not sweet sorghum A. HAGAN (1), K. Bowen (1), H. Miller (1) (1) Auburn University, U.S.A. View Abstract

Control of tulip mild mottle mosaic disease and tulip streak disease based on soil diagnostic M. KAZUMI (1) (1) Toyama Prefectural Agricultural, Forestry and Fisheries Research Center, Japan View Abstract

Management of Tomato chlorotic spot virus, an emerging tospovirus of tomato causing severe losses in south Florida S. ZHANG (1), Y. Fu (2), X. Fan (2), D. Seal (2), Q. Wang (3), E. McAvoy (4) (1) Tropical Research and Education Center, University of Florida, IFAS, U.S.A.; (2) Tropical Research and Education Center, University of Florida, IFAS, U.S.A.; (3) UF/IFAS Miam View Abstract

Deciphering soil and plant microbiomes associated with suppression of soybean diseases H. PFAFFE (1), S. Marzano (1), L. Domier (1), A. Davis (1), D. Eastburn (1) (1) University of Illinois, U.S.A. View Abstract

Correlating the Effects of Glyphosate on Soybean Nutrition with Cercospora Leaf Blight and Septoria Brown Spot T. GARCIA AROCA (1), E. Silva (1), B. Ward (1), C. Robertson (1), P. Price (1), R. Schneider (1), R. Levy (2) (1) Louisiana State University, Baton Rouge, LA, U.S.A.; (2) Louisiana State University, Alexandria, LA, U.S.A. View Abstract

Seed treatment with multiple rhizobacterial strains promotes soybean growth and suppresses reproduction of soybean cyst nematode in the field L. CHEN (1), Y. Zhou (2), Y. Wang (2), X. Zhu (2), R. Liu (2), P. Xiang (3), J. Chen (4), X. Liu (2), Y. Duan (2) (1) Shenyang Agricultural University, Ithaca, NY, China; (2) Shenyang Agricultural University, Shenyang, Other, China; (3) Heihe Branch, Heilongjiang Academy of Agricultural Sciences, Heihe, Other, China; (4) Daqing Branch, Heilongjiang Academy of Agricultural Sciences, Daqing, Other, China View Abstract

Decision models for fungicide applications for frogeye leaf spot in soybean H. Kelly (1) (1) University of TN, U.S.A. View Abstract

A meta-analysis of efficacy of anaerobic soil disinfestation on soil borne pathogen suppression. U. SHRESTHA (1), R. Auge (1), A. Saxton (2), D. Butler (1) (1) Department of Plant Sciences, (2) Department of animal sciences, University of Tennessee, Knoxville, USA. View Abstract

Evaluation of stem inoculation technique for assessing resistance to Phytophthora nicotianae in hydrangea cultivars M. KABIR (1), T. Simmons (1), P. Liyanapathiranage (1), C. Curry (1), L. Alexander (2), F. Baysal-Gurel (1) (1) Tennessee State University, Nashville, TN, U.S.A.; (2) USDA-ARS, U.S. National Arboretum, McMinnville, TN, U.S.A. View Abstract

Rapid differentiation of Claviceps species occurring in Oregon and Washington using high resolution melting curve analysis N. KAUR (1), R. Cating (1) (1) Oregon State University, Hermiston, OR, U.S.A. View Abstract

Practical resistance to mefenoxam in Pythium aphanidermatum and its impact on managing Pythium root rot in poinsettia cultivars E. Lookabaugh (1), B. Shew (1) (1) NC State University, U.S.A. View Abstract

Effects of fungicide application timing and cultivar resistance on Fusarium head blight and deoxynivalenol in winter wheat C. BOLANOS-CARRIEL1 (1), S. Wegulo (1), H. Hallen-Adams (1), D. Funnell-Harris (2), P. Baenziger (1) (1) University of Nebraska, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Bacillus mycoides isolate J (BmJ): Plant protection through Systemic Acquired Resistance. A new option for plant disease management. S. OCKEY (1), B. Highland (2), B. Jacobsen (3), M. Dimock (2) (1) Certis USA, U.S.A.; (2) Certis USA, U.S.A.; (3) Montana State University, U.S.A. View Abstract

Impact of Agronomic Practices and Diseases on Wheat Profitability J. SALGADO (1), P. Paul (1), L. Lindsey (1), R. Minyo (1) (1) The Ohio State University, U.S.A. View Abstract

Evaluation of Commercial Hot and Bell Pepper Cultivars for Resistance to Phytophthora capsici. C. PARADA ROJAS (1), C. Parada Rojas (2), L. Quesada Ocampo (2) (1) North Carolina State Universtity, Colombia; (2) North Carolina State University, U.S.A. View Abstract

Managing Potato Pink Rot Using Chemical and Non-Chemical Strategies X. ZHANG (1), J. Hao (1), H. Jiang (1), N. Marangoni (1), X. Zhang (1) (1) University of Maine, U.S.A. View Abstract

Temporal variation of soil biota in fumigated and non-fumigated potato fields T. SMART (1), B. Geary (1) (1) Brigham Young University, U.S.A. View Abstract

Controlling Asian Soybean Rust and Phytophthora Late Blight by Biologicals Alone and in Combination with Fungicides M. TWIZEYIMANA (1), E. Gachango (1), B. Espejo (1), K. Craig (1), P. Hammer (1) (1) AgBiome, Inc., Research Triangle Park, NC, U.S.A. View Abstract

The Nærstad model for potato late blight is available on the open source license technology platform VIPS B. NORDSKOG (1), A. Hermansen (1), V. Le (1), H. Eikemo (1), A. Hjelkrem (1), T. Skog (1), R. Nærstad (1) (1) Norwegian Institute of Bioeconomy Research, Norway View Abstract

Evaluation of management programs of yellowing and wilting of blackberry (Rubus sp.) caused by Fusarium oxysporum in Michoacan Mexico A. REBOLLAR-ALVITER (1), A. Hernandez-Cruz (2), A. Saldivia-Tejeda (3) (1) Universidad Autonoma Chapingo, Mexico; (2) Instituto Tecnologico del Valle de Morelia, Mexico; (3) Universidad Autonoma Chapingo, Posgrado en Proteccion Vegetal, Mexico View Abstract

Evaluation of the weather-based spray advisory program MELCAST, fungicide alternations and mulch to manage watermelon diseases in Missouri Z. MERSHA (1), M. O'Connor (1) (1) Lincoln University - MO, U.S.A. View Abstract

Proactive Strategy for Management of Seedborne Pathogens of Pulse Crops in Montana B. AGINDOTAN (1), M. BURROWS (1) (1) Montana State University, U.S.A. View Abstract

Response of grafted seedless watermelon to root regeneration and inoculation with Fusarium oxysporum f.sp. niveum Q. Liu (1), X. Zhao (1), T. Sanchez (1), Z. Black (1), N. Dufault (1), Q. Liu (1) (1) University of Florida, U.S.A. View Abstract

Novel approaches for the integrated control of the soilborne strawberry pathogens Macrophomina phaseolina and Fusarium oxysporum f. sp. fragariae M. Carter (1), H. Smith (2), G. Holmes (3), K. Ivors (1) (1) California Polytechnic State University, U.S.A.; (2) California Polytechnic State University, Statistics, U.S.A.; (3) California Polytechnic State University Strawberry Center, U.S.A. View Abstract

Reducing Mycotoxin Levels in Corn via Lepidopteran Insect Control and Application of Atoxigenic Fungi G. SCHUSTER (1), T. Mays (2), M. Sétamou (3), P. Porter (4), S. Nelson (5) (1) Texas A&M University - Kingsville/Texas A&M AgriLife Extension, U.S.A.; (2) Texas A&M AgriLife Extension Service, U.S.A.; (3) Texas A&M University-Kingsville Citrus Center, U.S View Abstract

Effect of cropping rotation and input level over 18 years on the northern Great Plains B. GOSSEN (1), K. Bassendowski (1), E. Johnson (2), R. Lemke (1) (1) Agriculture and Agri-Food Canada, Canada; (2) University of Saskatchewan, Canada View Abstract

Effect of temperature and sugar beet growth stage on yellowing decline caused by Fusarium secorum M. KHAN (1) (1) North Dakota State University and University of Minnesota, U.S.A. View Abstract

Managing Rhizoctonia crown and root rot of sugar beets utilizing azoxystrobin-alternative fungicides in Nebraska. R. HARVESON (1), R. Harveson (2) (1) University of Nebraska Panhandle Research & Extension Center, U.S.A.; (2) University of Nebraska Panhandle REC, U.S.A. View Abstract

Cryotherapy and Mini-plant Biological Indexing: New Tools for use in Citrus Clean Stock/Certification Programs C. RAMADUGU (1), M. Keremane (2), G. Volk (3), J. Hartung (4), G. McCollum (5), R. Lee (2) (1) University of California Riverside, U.S.A.; (2) USDA ARS National Clonal Germplasm Repository for Citrus and Dates, U.S.A.; (3) USDA ARS National Center for Gen View Abstract

Management of wilt diseases on tomato by organically acceptable methods M. RAHMAN (1), M. Rahman (1), L. Jett (1) (1) West Virginia University, U.S.A. View Abstract

Comparison of carbon quantity in anaerobic soil disinfestation J. HONG (1), F. Di Gioia (2), M. Ozores-Hampton (2), E. Rosskopf (1) (1) USDA ARS, U.S.A.; (2) University of Florida, Institute of Food and Agricultural Sciences, South West Florida Research and Education Center, U.S.A. View Abstract

Biology & Disease Mgmt: Mycology

Progress on genomic analysis and taxonomy of the rice blast fungus (Pyricularia oryzae) and other Magnaporthales specie N. ZHANG (1), G. Cai (2), D. Bhattacharya (3), J. Luo (3), H. Qiu (3) (1) Rutgers University, U.S.A.; (2) USDA, ARS, U.S.A.; (3) Rutgers University, U.S.A. View Abstract

Determining infection courts for Fusarium oxysporum f. sp. niveum leading to watermelon seed infestation A. PETKAR (1), P. Ji (1) (1) University of Georgia, U.S.A. View Abstract

Anything But Barren: Fungal Diversity and Functions in the Pine Barrens N. ZHANG (1), J. Luo (2), S. Miller (2), E. Walsh (2), S. Bonos (2), Z. Helsel (2) (1) Rutgers University, U.S.A.; (2) Rutgers Univ, U.S.A. View Abstract

A real-time PCR and digital droplet PCR assay for quantification of Polymyxa betae in sugar beet roots B. SMITH (1), F. Martin (1) (1) USDA-ARS, U.S.A. View Abstract

Origin and consequence of myrtle rust (Puccinia psidii) in the New Caledonian biodiversity hotspot. S. JULIA (1), M. Laurent (2), C. Fabian (1) (1) Institut Agronomique Néo-Calédonien, New Caledonia; (2) CIRAD (Centre de coopération internationale en recherche agronomique pour le développement), New Caledonia View Abstract

Arbuscular mycorrhizal fungal communities associated with organic and conventional onion crops in the Columbia Basin of Washington L. DU TOIT (1), A. Knerr (2), D. Wheeler (2), D. Schlatter (3) (1) Washington State University, U.S.A.; (2) Washington State University, U.S.A.; (3) USDA ARS, U.S.A. View Abstract

Evaluating isolate aggressiveness of Fusarium oxysporum f.sp. niveum in Florida T. SANCHEZ (1) (1) University of Florida, U.S.A. View Abstract

Ray blight disease (Stagonosporopsis tanaceti) development in pyrethrum M. BHUIYAN (1), T. Groom (2), M. Nicolas (3), P. Taylor (3) (1) The University of Melbourne, Australia; (2) Botanical Resources Australia, Australia; (3) The University of Melbourne, Australia View Abstract

Development of a multiplex PCR microsatellite marker set for Raffaelea lauricola, and its potential applications T. DREADEN (1), M. Hughes (2), J. Smith (2) (1) USDA FS, U.S.A.; (2) University of Florida, U.S.A. View Abstract

Introduction and seed transmission of Fusarium proliferatum in the field A. REYES GAIGE (1), W. Yue (2), C. Toomajian (2), J. Stack (2) (1) Kansas State University, U.S.A.; (2) Kansas State University, U.S.A. View Abstract

Characterization of fungi associated with tomato leaf mold in the United States L. GARBER (1), N. LeBlanc (2), A. Orshinsky (1), C. Smart (3) (1) University of Minnesota, U.S.A.; (2) University of Minnesota, U.S.A.; (3) Cornell University, U.S.A. View Abstract

Progress of severity of brown rust and orange rust during two sugarcane crop seasons in Florida S. SANJEL (1), M. Hincapie (1), B. Chaulagain (1), J. Comstock (2), R. Raid (1), P. Rott (1) (1) University of Florida, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Nutritional and environmental effects on conidial germination and appressorium formation of Phyllosticta citricarpa, the citrus black spot pathogen N. WANG (1), M. Dewdney (2) (1) Department of Plant Pathology, Citrus Research and Education Center, University of Florida, U.S.A.; (2) mmdewdney@ufl.edu, U.S.A. View Abstract

Host colonization and substrate utilization by wood-colonizing Ascomycete fungi in the grapevine trunk disease complex E. GALARNEAU (1), C. Wallis (2), K. Baumgartner (2) (1) University of California-Davis, U.S.A.; (2) USDA-Agricultural Research Service, U.S.A. View Abstract

Genetic characterization of the Colletotrichum gloeosporioides complex in apple orchards of North Carolina B. HOGE (1), M. Cubeta (1), D. Ritchie (1) (1) North Carolina State University, U.S.A. View Abstract

Factors affecting germination of pseudosclerotia of Monilinia vaccinii-corymbosi on lowbush blueberry. T. CASE (1), S. Annis (1) (1) University of Maine, U.S.A. View Abstract

Virulence of Botrytis prunorum associated with blossom blight on Japanese plum in Chile E. FERRADA (1), B. Latorre (1), J. Zoffoli (1), G. Diaz (2) (1) Pontificia Universidad Católica de Chile, Chile; (2) Universidad de Talca, Chile View Abstract

Host specificity of Colletotrichum sp. on tree tomato (Solanum betaceum) and mango (Mangifera indica) crops S. RESTREPO (1), L. Cabrera-Villamizar (1), C. pardo (1), S. Rojas (1), P. Rojas (1), G. Danies (1), P. Jiménez (2) (1) Universidad de los Andes, Colombia; (2) Universidad Militar Nueva Granada, Colombia View Abstract

Improved plant-based culture media for growth and sporulation of Cercospora janseana S. UPPALA (1), B. Liu (2), M. Wu (2), L. Zhou (3), X. Zhou (4) (1) Texas A & M AgriLife Research Center, U.S.A.; (2) Hunan Agricultural University, China; (3) Texas A&M AgriLife Research, U.S.A.; (4) Texas A&M AgriLife Research Center, U.S.A. View Abstract

Standardizing water potential of salt-amended growth media at different temperatures for microbiological studies I. AUJLA (1), T. Paulitz (2) (1) Department of Plant Pathology, Washington State University, U.S.A.; (2) USDA-ARS, Washington State University, U.S.A. View Abstract

Genetic mapping of pathogenesis in the northern corn leaf blight fungus S. MIDEROS (1), C. Chung (2), J. Poland (3), G. Turgeon (4), R. Nelson (4) (1) University of Illinois at Urbana Champaign, U.S.A.; (2) National Taiwan University, Taiwan; (3) Kansas State University, U.S.A.; (4) Cornell University, U.S.A. View Abstract

Genome and transcriptome analysis of Phellinus noxius, a wood decay fungus H. LEE (1), C. Chen (2), I. Tsai (3), R. Liou (2), C. Chung (2) (1) National Taiwan University, Taiwan; (2) National Taiwan University, Taiwan; (3) Academia Sinica, Taiwan View Abstract

Modelling potential inoculum availability of Mycosphaerella nawae in persimmon leaf litter using Bayesian growth curves A. VICENT (1), J. Martínez-Minaya (2), A. López-Quílez (3), D. Conesa (3) (1) Instituto Valenciano de Investigaciones Agrarias (IVIA). Moncada 46113, Valencia, Spain., Spain; (2) Instituto Valenciano de Investigaciones Agrarias (IVIA), Moncada 46113, Vale View Abstract

Mining of abiotic and biotic factors for prediction of soybean sudden death syndrome (SDS) symptoms Z. NOEL (1), M. Roth (1), J. Wang (1), E. Papenfuss (1), D. Kramer (1), M. Chilvers (1) (1) Michigan State University, U.S.A. View Abstract

Identifying Diversity Within Corynespora cassiicola, Cause of Target Spot of Cotton, Tomato, and Soybean in the Southeastern U.S. L. SUMABAT (1), M. Brewer (1), R. Kemerait (2) (1) University of Georgia, U.S.A.; (2) University of Georgia, U.S.A. View Abstract

Mitochondrial and nuclear gene sequences to infer the phylogeny of Pezizomycotina (Ascomycota) E. Franco (1), S. Lopez (1), M. Saparrat (2), P. BALATTI (1); (1) Facultad de Ciencias Agrarias y Forestales, Argentina; (2) Faculad de Ciencias Agrarias y Forestales, Argentina View Abstract

In silico screening of genes coding for secondary metabolites in the phytopathogenic fungus Stemphylium lycopersici E. Franco (2), S. Lopez (2), M. Saparrat (3), P. BALATTI (1); (1) Facultad de Ciencias Agrarias y Forestales, Argentina; (2) Centro de Investigaciones de Fitopatopatologia Facultad de Ciencias Agrarias y Forestales UNLP, Argentina; (3) Catedra de Microbiolo View Abstract

Virulence of Rhizoctonia solani anastomosis groups on cotton, corn, rice and soybean K. URREA (1), C. Rothrock (1), S. Winters (1) (1) University of Arkansas, U.S.A. View Abstract

Ganoderma Species Associated with Declining or Dead Trees in the Southeastern United States A. LOYD (1), J. Smith (2), R. Blanchette (3), B. Held (3), C. Barnes (4), M. Schink (6) (1) Bartlett Tree Experts/University of Florida, U.S.A.; (2) University of Florida, U.S.A.; (3) University of Minnesota, U.S.A.; (4) Departamento Nacional de Proteccion Vegetal, INAP View Abstract

Characterizing Fusarium species infecting corn roots in South Dakota A. ADHIKARI (1), P. Okello (1), B. Kontz (1), M. Dunbar (1), A. Varenhorst (2), F. Mathew (2) (1) South Dakota State University, U.S.A.; (2) South Dakota State University, U.S.A. View Abstract

Identity, characteristics, and fungicide sensitivity of isolates in the Diaporthe species complex associated with soybean stem disease in Minnesota D. MALVICK (1), C. Floyd (2) (1) University of Minnesota, U.S.A.; (2) University of Minnesota, U.S.A. View Abstract

Fungicide resistance and host susceptibility of Colletotrichum orbiculare infecting cucurbit crops in North Carolina N. NOËL (1), L. Quesada-Ocampo (1) (1) NCSU, U.S.A. View Abstract

Preliminary results from Multilocus Sequence Typing of the soilborne fungal pathogen Sclerotium rolfsii P. SORIA (1), M. Smith (1), N. Dufault (1) (1) University of Florida, U.S.A. View Abstract

Oxygen and an aerial state are independently required for asexual development of Aspergillus species M. CHI (1), K. Craven (2) (1) The Samuel Roberts Noble Foundation, U.S.A.; (2) The Samuel Roberts Noble Foundation, U.S.A. View Abstract

Greenhouse Evaluation of Dosage Responses of the Tomato I3 Gene to Fusarium oxysporum f. sp. lycopersici race 3. C. LAND (1), C. Land (2), G. Vallad (2), S. Hutton (2), R. Willis (2) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A. View Abstract

Effects of inoculum substrates on root rot of soybean caused by Fusarium oxysporum and Fusarium graminearum D. CRUZ (1), D. Mayfield (2), Y. Meng (1), G. Munkvold (1), L. Leandro (1) (1) Iowa State University, U.S.A.; (2) Iowas State University, U.S.A. View Abstract

Genome sequencing of Synchytrium endobioticum offers insight into its carbohydrate degrading enzymes and effectors H. NGUYEN (1), B. van de Vossenberg (2), T. van der Lee (2), D. Joly (3), D. Smith (4), M. van Gent-Pelzer (2), P. Bonants (2), C. Levesque (1) (1) Agriculture and Agri-Food Canada, Canada; (2) Wageningen University and Research Centre, Netherlands; (3) U View Abstract

Rapid selection and opportunities for restoration of laurel wilt tolerant Persea species.  J. SMITH (1), E. Jokela (1), (1) University of Florida, Gainesville, FL, U.S.A. View Abstract

Fusarium oxysporum f.sp. lycopersici: Small Chromosomes Define Friend vs Foe. K. FENSTERMACHER (1) (1) Penn State University, U.S.A. View Abstract

Current Status and Ongoing Conservation Efforts for the Federally Endangered Species Pityopsis ruthii T. EDWARDS (1), P. Wadl (2), R. Trigiano (3), E. Hatmaker (3), S. Boggess (3), P. Moore (1), M. Staton (5), W. Klingeman (1), E. Bernard (1), A. Dattilo (6), B. Ownley (1), T. Rinehart (7), M. Pistrang (8), J. Skinner (1), G. Call (9), A. Windham (1), D. View Abstract

Relationship between genetic and morphological characters of Botrytis cinerea isolates obtained of blueberry fields in southern Chile E. BRICEÑO (1), E. Briceño (1), S. Aguirre (2), A. Behn (2) (1) Universidad Austral de Chile, Chile; (2) Univ austral Chile, Chile View Abstract

Evaluation of chemotype, pathogenicity, and aggressiveness of Fusarium graminearum isolates of wheat and soybean B. MUELLER (1), B. Mueller (1), C. Groves (1), D. Mueller (1) (1) University of Wisconsin-Madison, U.S.A. View Abstract

Understanding sexual fertility in Aspergillus flavus through analysis of F1 progeny R. GELL (1), I. Carbone (1) (1) Center for Integrated Fungal Research, North Carolina State University, U.S.A. View Abstract

Fitness ability and fungicide sensitivity of Lambertella corni-maris isolates from apple A. AMIRI (1), A. Hawkins (2), K. Mulvaney (2) (1) Washinton State University, U.S.A.; (2) Washington State University, U.S.A. View Abstract

Ascospore biology of Parastagonospora nodorum under Norwegian field conditions A. FICKE (1), B. Asalf (2), A. Ruud (3) (1) Norwegian Institute for Bioeconomic Research, Norway; (2) Norwegian Institute of Bioeconomy Research, Norway; (3) Norwegian University of Life Sciences, Norway View Abstract

Pathogenicity and Virulence of Alternaria alternata on ‘Alamo’ Switchgrass S. COLLINS (1), B. Ownley (1) (1) University of Tennessee, U.S.A. View Abstract

Biology & Disease Mgmt: Nematology

Gossypium arboreum accessions resistant to Rotylenchulus reniformis identified S. STETINA (1), J. Erpelding (1) (1) USDA, Agricultural Research Service, U.S.A. View Abstract

Potential of trap cropping for managing root-knot nematode B. WESTERDAHL (1) (1) University of California Entomology & Nematology Department, U.S.A. View Abstract

Root knot nematode effects on metabolic profiles of susceptible and resistant grapevine rootstocks C. Wallis (1); (1) USDA-ARS View Abstract

Cover cropping affects plant-parasitic and free-living nematodes in Michigan carrot production Z. GRABAU (1), Z. Maung (1), D. Noyes (1), D. Brainard (1), D. Baas (2), B. Werling (3), H. Melakeberhan (1) (1) Michigan State University Department of Horticulture, U.S.A.; (2) Michigan State University Extension-St. Joseph County, U.S.A.; (3) Michigan View Abstract

Movement of Fluopyram in Sandy Soil to Affect Meloidogyne incognita Motility T. FASKE (1), K. Hurd (2) (1) University of Arkansas, Cooperative Extension Service, U.S.A.; (2) University of Arkansas, Cooperative Extension Service, U.S.A. View Abstract

Influence of root exudates and soil on attachment of Pasteuria penetrans to Meloidogyne arenaria. C. LIU (1), P. Timper (2) (1) University of Georgia, U.S.A.; (2) USDA ARS, U.S.A. View Abstract

Soybean cyst nematode culture collections and field populations from North Carolina and Missouri reveal high incidences of infection by viruses C. RUARK (1), S. Koenning (2), M. Mitchum (3), E. Davis (2), C. Opperman (2), S. Lommel (2), T. Sit (2) (1) North Carolina State University, U.S.A.; (2) North Carolina State University, U.S.A.; (3) University of Missouri, U.S.A. View Abstract

Soybean Cyst Nematodes of Ohio: deciphering mechanisms of virulence E. WALSH (1), T. Miller (2), A. Grenell (3), B. Cassone (4), C. Taylor (1) (1) The Ohio State University, U.S.A.; (2) The Ohio State University, U.S.A.; (3) The College of Wooster, U.S.A.; (4) Brandon University, Canada View Abstract

Comparison of ITS1 versus ITS2 regions for characterizing fungal communities colonizing soybean cyst nematode W. HU (1), K. Bushley (1), S. Chen (2) (1) Department of Plant Biology, University of Minnesota, U.S.A.; (2) Southern Research and Outreach Center, University of Minnesota, U.S.A. View Abstract

Investigating the role of maize for influence on soybean cyst nematode R. MEDINA (1) (1) The Ohio State University, U.S.A. View Abstract

Mode of action studies on the nematicide fluensulfone P. NAVIA GINE (1) (1) 1973, Wellington, FL, U.S.A. View Abstract

Root Knot Nematode (Meloidogyne incognita) populations on eggplant could be reduced using Marigold extracts A. HAMEED (1), N. Liaqat (2), K. Riaz (2), M. Alam (2), S. Sarfraz (2), S. Jameel (2) (1) University of Agriculture, Faisalabad, Pakistan, Pakistan; (2) University of Agriculture Faisalabad, 38040-Pakistan, Pakistan; (3) University of Agriculture Faisalab View Abstract

Biology & Disease Mgmt: Oomycetes

Pathogenicity and Virulence of Oomycete Species on Common Bean D. ROSSMAN (1), M. Chilvers (1), A. Rojas (2), J. Jacobs (2) (1) Michigan State University, U.S.A.; (2) Michigan State University, U.S.A. View Abstract

Temporal analysis of oomycete communities associated with soybean and corn M. CHILVERS (1), J. Rojas (1) (1) Michigan State University, U.S.A. View Abstract

The Effect of Increased Soil Fertility on Seedling Disease Development of Soybean in Ohio M. EYRE (1), S. Culman (1), A. Dorrance (1) (1) The Ohio State University, U.S.A. View Abstract

Putative sucrose esters from Petunia x hybrida may contribute to this host’s reduced susceptibility to Phytophthora infestans M. BECKTELL (1) (1) Colorado Mesa University, U.S.A. View Abstract

Phylogenetic relationships among Philippine isolates of Peronosclerospora based on sequence analysis of multiple mitochondrial loci F. DELA CUEVA (1), M. Samaco (1), M. Ramon (2), F. Martin (2) (1) Institute of Plant Breeding, University of the Philippines Los Baños, Philippines; (2) USDA ARS, U.S.A. View Abstract

Cold stress at planting increase susceptibility to damping-off caused by Pythium sylvaticum M. SERRANO (1), A. Robertson (1) (1) Iowa State University, U.S.A. View Abstract

Phenotypic variation between two clades of Phytophthora cinnamomi isolated from avocado fields in California R. BELISLE (1), B. McKee (2), W. Hao (2), P. Manosalva (2) (1) University of California, Riverside, U.S.A.; (2) University of California Riverside, U.S.A. View Abstract

Breadth of resistance of Phytophthora fruit rot resistant watermelon germplasm to Phytophthora capsici isolates from across United States of America C. KOUSIK (1), J. Ikerd (1), M. Mandal (2) (1) U.S. Department of Agriculture, Agricultural Research Service, U.S. Vegetable Laboratory, U.S.A.; (2) ORISE Participant, U.S. Vegetable Laboratory, USDA, ARS., U.S.A. View Abstract

Development of a split-root technique for canola (Brassica napus L.) G. BRUCE (1), J. Robson (2), M. McDonald (2) (1) Agriculture and Agri-Food Canada, Canada; (2) University of Guelph, Canada View Abstract

Estimates of viable resting spores of Plasmodiophora brassicae using propidium monoazide and qPCR B. GOSSEN (1), F. Al-Daoud (2), M. McDonald (2) (1) Agriculture and Agri-Food Canada, Canada; (2) University of Guelph, Canada View Abstract

Survey data reveals potential interactions between soil-borne fungi and oomycetes isolated in the midwest E. LERCH (1), A. Fakhoury (2), M Chilvers (3), A Robertson (1); (1) Iowa State University, IA, USA, (2) Sourthern Illinois University, IL, USA, (3) Michigan State University, MI, USA View Abstract

Identification and characterization of potential oomycete pathogens from the University Agricultural Laboratory in Fresno, California M. ELLIS (1), H. Deniston-Sheets (1), D. Sieperda (2), J. Bushoven (1) (1) Plant Science Department, California State University, Fresno, U.S.A.; (2) California State University, Fresno, U.S.A. View Abstract

Biology & Disease Mgmt: Postharvest Pathology & Mycotoxins

Development of edible composite coatings with antifungal GRAS salts for reduction of postharvest gray mold of cherry tomato fruit L. PALOU (1), C. Fagundes (2), A. Monteiro (2), M. Pérez-Gago (3) (1) Institut Valencià d'Investigacions Agràries (IVIA), Spain; (2) Universidade Federal de Santa Catarina, Brazil; (3) IVIA, Spain View Abstract

Diversity of aflatoxin-producing fungi in non-agriculture soils of Zambia P. KACHAPULULULA (1), J. AKELLO (2), R. BANDYOPADHYAY (3), P. COTTY (4) (1) UNIVERSITY OF ARIZONA, U.S.A.; (2) INTERNATIONAL INSTITUTE OF TROPICAL AGRICULTURE (IITA), Zambia; (3) INTERNATIONAL INSTITUTE OF TROPICAL AGRICULTURE (IITA), Nigeria; (4) USDA-AR View Abstract

Differential effects of DON and 15-ADON on maize seedling growth Y. MENG (1), J. Li (2), G. Munkvold (3), C. Liang (2), L. Luo (2) (1) China Agricultural University;Iowa State University;Hexi University, China; (2) China Agricultural University, China; (3) Iowa State University, U.S.A. View Abstract

Diversity of aflatoxin producing fungi in Malawi C. CHING'ANDA (1), J. Atehnkeng (2), R. Bandyopadhyay (3), P. Cotty (4) (1) University of Arizona, U.S.A.; (2) International Institute of Tropical Agriculture (IITA), Malawi; (3) International Institute of Tropical Agriculture (IITA), Nigeria; (4) USDA-AR View Abstract

Rapid detection of preexisting internal Leuconostoc spp. spoilage populations in fresh-cut carrots during storage K. BRITT (1), T. Suslow (1) (1) UC Davis, U.S.A. View Abstract

Assessment of hermetic storage of maize under different environmental conditions B. LANE (1), C. Woloshuk (1) (1) Purdue University, U.S.A. View Abstract

Seasonal population dynamics of mycotoxigenic Aspergillus section Nigri species on grapes and in vineyard soil using ddPCR J. PALUMBO (1), T. O'Keeffe (1), M. Fidelibus (2) (1) USDA ARS, U.S.A.; (2) University of California, U.S.A. View Abstract

Controlling bacterial soft rot in tomato fruit that have been inoculated through lenticels located around the stem attachment. J. BARTZ (1), D. Spiceland (1), M. Elkahky (3), J. Brecht (4) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A.; (3) Faculty of Agriculture, Mansoura University, Egypt; (4) Horticultural Sci.; University of Florida, U.S.A. View Abstract

Effects of nutrients and microorganisms on aflatoxin production by Aspergillus flavus during successive generations of subculturing O. OMOLEHIN (1), Y. Ruarang (2), R. Brown (3), Z. Chen (2) (1) Louisiana State University, U.S.A.; (2) Department of Plant Pathology and Crop Physiology, Louisiana State University, U.S.A.; (3) Southern Regional Research Center, USDA-ARS., U.S.A. View Abstract

Susceptibility of sweetpotato (Ipomoea batatas) cultivars to fungal and bacterial diseases E. PALENCIA (1), L. Quesada-Ocampo (1) (1) North Carolina State University, U.S.A. View Abstract

Mycotoxins contamination on hybrids and landraces of stored maize grain in México L. VASQUEZ-SILLER (1), K. Ordóñez-Morales (2), J. Soria-Ruíz (3) (1) Universidad Autónoma Agraria Antonio Narro, Mexico; (2) Semillas Berestain, Mexico; (3) Instituto nacional de Investigaciones Forestales Agricolas y Pecuarias (INIFAP), Mexico View Abstract

Correlation between the disease incidence of Fusarium head blight and the mycotoxin content of winter cereal crops in Korea H. SHIM (1), H. Shim (2), I. Kang (2), D. Shin (2), J. Roh (2), S. Heu (2) (1) National Institute of Crop Science, South Korea; (2) National Insitute of Crop Science, South Korea View Abstract

Analysis of deoxynivalenol and deoxynivalenol-3-glucoside in Canadian spring wheat varieties inoculated with Fusarium graminearum D. FERNANDO (1), C. Amarasinghe (1), S. Simsek (2) (1) University of Manitoba, Winnipeg, MB, Canada; (2) North Dakota State University, Fargo, ND, U.S.A. View Abstract

Bitter rot on apple: Comparative epidemiology of Colletotrichum species and growth temperature R. MOREIRA (1), E. Zielinski (2), A. Filho (3), L. May De Mio (2) (1) Federal University of Parana, Brazil; (2) Federal University of Parana, Brazil; (3) University of Sao Paulo, Brazil View Abstract

Use of induced resistance for the management of postharvest decay of fruit G. ROMANAZZI (1) (1) Marche Polytechnic University, Italy View Abstract

Profile of Aspergilli in fields under continuous maize and groundnut cultivation and aflatoxin contamination along the crop value chains in Mozambique J. AUGUSTO (1), J. Atehnkeng (2), J. Akello (3), P. Cotty (4), R. Bandyopadhyay (5) (1) Intl Inst of Tropical Agriculture, Mozambique; (2) International Institute of Tropical Agriculture, Malawi; (3) International Institute of Tropical Agriculture, Zambia View Abstract

Seed Quality of Maize Cultivars Infected With Pantoea agglomerans H. SILVA-ROJAS (1), G. Morales-Valenzuela (1), L. Cordova-Tellez (1), D. Ochoa Martínez (1), A. Carballo-Carballo (1) (1) Colegio de Postgraduados, Mexico View Abstract

Evaluation of sorghum germplasm for resistance to grain mold and mycotoxin contamination in the Mid-Atlantic B. ACHARYA (1), N. McMaster (2), M. Balota (1), D. Schmale (2), H. Mehl (1); (1) Virginia Tech Tidewater AREC, U.S.A.; (2) Virginia Tech, U.S.A. View Abstract

Conidial versus sclerotial production: implications for corn and soil niche specialization in Aspergillus flavus R. SWEANY (1), C. DeRobertis (1), K. Damann (1) (1) Louisiana State University Agricultural Center, U.S.A. View Abstract

Influence of corn GMO traits for insect control on aflatoxin and fumonisin contamination in Texas T. ISAKEIT (1), T. Isakeit (1), S. Murray (2), J. Pekar (2) (1) Texas A&M University, U.S.A.; (2) Texas A&M University, U.S.A. View Abstract

Factors influencing Aspergillus flavus community structures in fields treated with the atoxigenic biocontrol A. flavus AF36 R. JAIME (1), P. Cotty (2) (1) University of Arizona, U.S.A.; (2) USDA-ARS, University of Arizona, U.S.A. View Abstract

Biology & Disease Mgmt: Virology

Characterization of recombinant Potato virus YNTN (PVYNTN) isolates from Sulawesi, Indonesia A. KARASEV (1), M. Chikh-Ali (1), N. Bosqui-Perez (1), D. Vander Pol (1), D. Sembel (2); (1) University of Idaho, USA, (2) Universitas Sam Ratulangi, Manado View Abstract

Interactions between Bell pepper endornavirus and acute viruses C. ESCALANTE (1), R. Valverde (1) (1) Louisiana State University Agricultural Center, U.S.A. View Abstract

Identification of conserved transcriptome responses to propagative plant viruses in insect vectors. K. MARTIN (1), K. Barandoc-Alviar (1), D. Rotenberg (1), A. Whitfield (1) (1) Kansas State University, U.S.A. View Abstract

Detection, Distribution and Effect of Hop stunt viroid on different hop cultivars M. KAPPAGANTU (1), J. Bullock (1), S. Kenny (2), K. Eastwell (2) (1) Washington State University, U.S.A.; (2) IAREC-Washington State University, U.S.A. View Abstract

Studies on Groundnut rosette disease and implications of the newly reported Groundnut ringspot virus for groundnut production in Ghana A. APPIAH (1), R. Tegg (2), S. Offei (3), C. Wilson (2) (1) Tasmanian Institute of Agriculture, School of Land and Food, University of Tasmania, Australia, Australia; (2) Tasmanian Institute of Agriculture, School of Land and Food, University of Tasmania, View Abstract

An optimized multiplex detection protocol captures divergent isolates of yellow dwarf virus species in Kansas wheat A. LANEY (1), R. Acosta-Leal (1), A. Whitfield (1), D. Rotenberg (1) (1) Kansas State University, U.S.A. View Abstract

Correlation of endogenous pararetrovirus with symptoms of citrus blight disease A. ROY (1), J. Hartung (2), A. Stone (1), J. Sharo (2), R. Brlansky (3), W. Schneider (1) (1) USDA-ARS-FDWSRU, U.S.A.; (2) USDA-ARS-MPPL, U.S.A.; (3) University of Florida, CREC, U.S.A. View Abstract

Identification of conserved sequences within tospovirus genomes for broad-spectrum resistance using RNA interference (RNAi) J. OLIVER (1), D. Rotenberg (1), A. Whitfield (1) (1) Kansas State University, U.S.A. View Abstract

Variation in aphid abundance and Potato Virus Y incidence in Oregon potato. S. BAG (1), K. Frost (1), S. Rondon (1), B. Charlton (2), D. Walenta (3) (1) HAREC, OSU, U.S.A.; (2) Klamath Basin Research and Extension Center, OSU, U.S.A.; (3) OSU Extension Service, U.S.A. View Abstract

Impact of downy brome (Bromus tectorum) and volunteer wheat on risk of winter wheat infection by Wheat streak mosaic virus N. RANABHAT (1), Z. MILLER (1), E. LEHNHOFF (2), F. MENALLED (1), T. SEIPEL (1), M. BURROWS (1) (1) MONTANA STATE UNIVERSITY, U.S.A.; (2) New Mexico State University, U.S.A. View Abstract

Discovery of various dsRNA mycoviruses in Trichoderma spp. causing green mold disease of shiitake Lentinula edides D. KIM (1) (1) Chonbuk National University, South Korea View Abstract

Complete genome sequence of a Watermelon mosaic virus isolate from watermelon after 50 years of its detection in the United States of America A. ALI (1), N. Rajbanshi (1), (1) The University of Tulsa, Tulsa, OK, U.S.A. View Abstract

Comparative analyses of world-wide cucumber green mottle mosaic virus (CGMMV) isolates T. PITMAN (1), B. Falk (1) (1) UC Davis, U.S.A. View Abstract

Mixed Infection of Two Economically Important Tospoviruses in Nicotiana benthamiana K. ZHAO (1), C. Rosa (1) (1) The Pennsylvania State University, U.S.A. View Abstract

Isolation and characterization of ΦRs551, a bacteriophage associated with the phytobacterium Ralstonia solanacearum strain UW551 M. STULBERG (1), J. Mershon (2), A. Ahmad (3), D. Mollov (4), Q. Huang (2) (1) FNPRU, USDA/ARS & ORISE, U.S.A.; (2) FNPRU, USDA/ARS, U.S.A.; (3) FNPRU, USDA/ARS & Department of Plant Pathology, Faculty of Agriculture, Minia University, El-minia 61519, Egy View Abstract

A full genome cDNA clone of Cherry rusty mottle associated virus induces disease in sweet cherry D. VILLAMOR (1), S. Pillai (1), K. Eastwell (1) (1) Washington State University, U.S.A. View Abstract

The virosome of Rhizoctonia solani and its effect in fungal pathogenicity T. STETINA (1), C. Rothrock (1), T. Spurlock (2), I. Tzanetakis (1) (1) University of Arkansas, U.S.A.; (2) University of Arkansas, U.S.A. View Abstract

Genetic diversity, host range and disease resistance to the emerging Tomato mottle mosaic virus on tomato X. SUI (1), R. Li (1), C. Padmanabhan (1), K. Ling (1) (1) USDA-ARS, U.S. Vegetable Laboratory, U.S.A. View Abstract

Biology and Disease Management: Regulatory Plant Pathology

Virus testing in certified strawberry nursery plants in Oregon D. SHARMA-POUDYAL (1), S. Lane (1), J. Grant (1), N. Osterbauer (1) (1) Oregon Department of Agriculture, U.S.A. View Abstract

Regulatory implications of a newly discovered transmission mechanism for the pathogens that cause huanglongbing (citrus greening disease) S. HALBERT (1), M. Keremane (2), C. Ramadugu (3), W. Dawson (4), J. Lee (5), J. Keesling (5), B. Singer (6), R. Lee (7) (1) Florida Department of Agriculture and Consumer Services, Division of Plant Industry, U.S.A.; (2) USDA/ARS, National Clonal Germplas View Abstract

Variation within and among laboratories in detection of Candidatus Liberibacter asiaticus using qPCR G. MCCOLLUM (1), C. Levesque (2), M. Keremane (3), M. Kunta (4) (1) USDA-Agricultural Research Service, U.S.A.; (2) Citrus Research Board, U.S.A.; (3) USDA, ARS, U.S.A.; (4) Texas A&M University, U.S.A. View Abstract

Known unknowns and unknown unknowns: fungi intercepted at the U.S. borders M. ROMBERG (1), J. McKemy (1) (1) USDA APHIS PPQ, U.S.A. View Abstract

National Seed Health Accreditation Pilot Program: monitoring seed health of seeds imported into the United States T. BRUNS (1), G. Munkvold (2), A. McMellen-Brannigan (3), R. Dunkle (4) (1) Iowa State University Seed Science Center, U.S.A.; (2) Iowa State University, U.S.A.; (3) USDA-APHIS, U.S.A.; (4) American Seed Trade Association, U.S.A. View Abstract

Functional genomic analysis of Botrytis cinerea isolates from Ohio V. VIJAYAKUMAR (1), B. Cottrell (1), H. Reynolds (1), J. Slot (1), F. Hand (1), G. Valero (1), C. Tomashuk (1) (1) The Ohio State University, U.S.A. View Abstract

Contributions of Plant Viruses to Phytobiome Research

Virus-induced changes in grass systems biology K. MANDADI (1), K. Scholthof (2) (1) Texas A&M AgriLife Research, U.S.A.; (2) Texas A&M University, U.S.A. View Abstract | View Presentation

Characterization of diverse virus populations associated with plant-pathogenic nematodes. S. BEKAL (1), K. Lambert (1), G. Tylka (2), K. Bhalerao (1) (1) University of Illinois, U.S.A.; (2) Iowa State University, U.S.A. View Abstract | View Presentation

Summary-The role of viruses in the phytobiome. J. SCHOELZ (1) (1) University of Missouri, U.S.A. View Abstract | View Presentation

Plant-virus protein interaction and localization maps: Where's the game and who's on the team? M. Goodin (1) (1) University of Kentucky, U.S.A. View Abstract | View Presentation

Players in the phytobiome: vector-borne viruses and their interactions with insect hosts A. WHITFIELD (1), D. Rotenberg (1) (1) Kansas State University, U.S.A. View Abstract

Viruses in nature: Persistent plant viruses. R. VALVERDE (1) (1) Louisiana State University Agricultural Center, U.S.A. View Abstract

Disease Management in the Genomics Era

Integrating GBS, RNA-Seq, and AmpSeq data for analysis of powdery mildew resistance in grapevine. mysore.sudarshana@ars.usda.gov View Abstract

Genomics of bacterial pathogen populations as a tool to inform crop disease prevention and control. B. Vinatzer (1); (1) Virgina Tech, VA, USA View Abstract | View Presentation

Comparative genomics of downy mildews R. MICHELMORE (1), C. Tsuchida (2), J. Gill (3), K. Wood (3), L. Derevnina (3), S. Reyes Chin Wo (3), K. Fletcher (3) (1) UC Davis, U.S.A.; (2) UC Davjs, U.S.A.; (3) UC Davis, U.S.A. View Abstract | View Presentation

Use of sequencing technologies in controlling downy mildew of lima bean. T. MHORA (1) (1) University of Delaware, U.S.A. View Abstract | View Presentation

Application of metagenomics for virus disease management in perennial crops: A Case Study of Grapevine red blotch disease in North America. M. SUDARSHANA (1) (1) USDA ARS, Davis, CA, U.S.A. View Abstract | View Presentation

Diseases of Plants: Crop Loss Assessment

Understanding fungal reservoirs: tracking Aspergillus populations in air, soil, crop debris and the reproductive organs of Bt and non-Bt corn H. ABBAS (1), M. Weaver (1), C. Accinelli (2), W. Shier (3), R. Zablotowicz (1) (1) USDA-ARS, U.S.A.; (2) University of Bologna, Italy; (3) University of Minnesota, U.S.A. View Abstract

Effect of planting date and peanut cultivar on leaf spot epidemics and pod yield B. JORDAN (1), A. Culbreath (2), W. Branch (3) (1) University of Georgia, Dept. of Plant Pathology, U.S.A.; (2) University of Georgia, Dept of Plant Pathology, U.S.A.; (3) University of Georgia, Dept. of Crop and Soil Science, U.S.A. View Abstract

Impact of stalk rot diseases on sweet sorghum sugar concentration and content. A. BANDARA (1), T. Tesso (1), D. Wang (1), K. Zhang (1), C. Little (1) (1) Kansas State University, U.S.A. View Abstract

Effect of root pathogens Bipolaris sorokiniana and Fusarium graminearum on germination and seedling blight in wheat in South Dakota N. Kaur (1), S. Ali (1), S. Sehgal (1), K. Glover (1), S. Kumar (1) (1) South Dakota State Universty, Brookings, SD, U.S.A. View Abstract

Effect of root pathogens Bipolaris sorokiniana and Fusarium graminearum on germination and seedling blight in wheat in South Dakota S. ALI (1), N. Kaur (1), S. Sehgal (1), K. Glover (1), S. Kumar (1) (1) South Dakota State University, Brookings, SD, U.S.A. View Abstract

Fungal profiles in ginger root and cayenne pepper powders from U.S. retail V. TOURNAS (1), J. Kohn (2), E. Katsoudas (2) (1) Center for Food Safety and Applied Nutrition/FDA, U.S.A.; (2) Northeast Regional Lab/Office of Regulatory Affairs/FDA, U.S.A. View Abstract

Wheat streak mosaic virus differentially affects soft red winter wheat cultivars B. HODGE (1), L. Stewart (2), P. Paul (3) (1) The Ohio State University, U.S.A.; (2) United States Department of Agriculture-Agricultural Research Service, U.S.A.; (3) The Ohio State University, U.S.A. View Abstract

Characterization of ZinkicideTM in plant tissues L. TETARD (1), M. Soliman (1), M. Young (1), A. Towers (1), T. Washington (1), P. Rajasekaran (1), S. Das (1), E. Johnson (2), A. Gesquiere (1), S. Santra (1) (1) University of Central Florida, Orlando, FL, U.S.A.; (2) University of Florida, Lake Alfred, FL, U.S.A. View Abstract

Assessing Goss’s bacterial wilt and leaf blight of corn in the High Plains of Texas with infrared aerial imagery. J. WOODWARD (1), R. French-Monar (2), J. Todd (3), O. Moore (4) (1) Texas A&M AgriLife Extension, U.S.A.; (2) Texas A&M AgriLife Extension, U.S.A.; (3) Todd Ag Consulting, U.S.A.; (4) High Plains Consulting, U.S.A. View Abstract

Diseases of Plants: Disease Detection & Diagnosis

Waterborne plant virus sampling and detection in aqueous environment. B. GALLUCCI MAZZIERO (1) (1) Oklahoma State University, U.S.A. View Abstract

Current Status of Grapevine Virus Diseases in British Columbia S. POOJARI (1), J. Boulé (1), N. DeLury (1), T. Lowery (1), M. Rott (2), A. Schmidt (2), J. Úrbez Torres (1) (1) Summerland Research and Development Centre, Canada; (2) Canadian Food Inspection Agency, Canada View Abstract

Development of a field-based detection technique for Rose rosette virus using isothermal reverse transcription-recombinase polymerase amplification B. BABU (1), B. Washburn (2), S. Miller (2), F. Ochoa-Corona (3), G. Knox (1) (1) North Florida Research and Education Center, University of Florida, U.S.A.; (2) Department of Biological Science, Florida State University, U.S.A.; (3) Department of Entomol View Abstract

Beet curly top virus strains associated with sugar beet in Idaho, Oregon, and a survey collection C. STRAUSBAUGH (1), I. Eujayl (1), B. Wintermantel (2) (1) USDA-ARS, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Occurrence of Phytophthora syringae causing Phytophthora fruit rot in apple in Chile G. DÍAZ (1), M. Lolas (1), R. Méndez (1), J. Contreras (2), M. Caceres (1) (1) Universidad de Talca, Chile; (2) Univerisdad de Talca, Chile View Abstract

Development of a loop-mediated isothermal amplification assay for the detection of Harpophora maydis N. GONZALEZ (1), G. Munkvold (1) (1) Iowa State University, U.S.A. View Abstract

Use of an unmanned aerial vehicle to assess tomato spotted wilt severity in large peanut mapping populations S. PELHAM (1), C. Holbrook (2), B. Guo (2), Y. Chu (3), P. Ozias-Akins (3), C. Li (4), R. Xu (4), A. Cubreath (1) (1) University of Georgia - Department of Plant Pathology, Tifton, GA, U.S.A.; (2) United States Department of Agriculture - Agricultural Research Service, Tifton, GA, U.S.A.; (3) University of Georgia - Department of Horticulture, Tifton, GA, U.S.A.; (4) University of Georgia - College of Engineering, Athens, GA, U.S.A. View Abstract

Morphological and molecular identification of Phoma medicaginis var. medicaginis causing spring black stem and leaf spot of alfalfa in Nevada R. Bomberger (1), S. Wang (1) (1) Nevada Department of Agriculture, U.S.A. View Abstract

Relative post-inoculation detection frequencies of ‘Candidatus Liberibacter solancearum’ haplotypes in three solanaceous hosts C. RUSH (1), L. Paetzold (1), F. Workneh (1) (1) Texas A&M AgriLife Research, Bushland, TX, U.S.A. View Abstract

Occurrence of endornaviruses in non-cultivated plant species R. HERSCHLAG (1), E. Rodrigues de Souto (2), R. Valverde (1) (1) Louisiana State University Agricultural Center, U.S.A.; (2) Universidade Estadual de Maringa, Brazil View Abstract

Trichosanthes latent virus (TrLV), a novel potyvirus from Trichosanthes cucumeroides in Japan O. KIM (1), K. Kobayashi (2), K. Natsuaki (2), H. Shinohara (2), H. Negishi (2) (1) Tokyo University of Agriculture (TUA), Japan; (2) Tokyo University of Agriculture (TUA), Japan View Abstract

Development of species-specific qPCR tests for detection and quantification of Meloidogyne hapla A. GORNY (1), X. Wang (2), S. Pethybridge (1) (1) Cornell University, School of Integrative Plant Sciences, Plant Pathology & Plant-Microbe Biology Section, U.S.A.; (2) USDA-ARS, Plant Protection Research Unit, Cornell University, U.S.A. View Abstract

Identification and characterization of Zucchini tigre mosaic virus on creeping cucumber in Japan K. KOBAYASHI (1), H. Shinohara (2), H. Negishi (2), O. Kim (2) (1) Tokyo University of Agriculture (TUA), Japan; (2) Tokyo University of Agriculture (TUA), Japan View Abstract

Development of a rapid and reliable isothermal AmplifyRP diagnostic assay for specific detection of Xylella fastidiosa R. LI (1), P. Russell (2), N. Mcowen (2), B. Davenport (2), S. Zhang (2) (1) Agdia Inc., U.S.A.; (2) Agdia Inc, U.S.A. View Abstract

Rapid diagnostic tools for soilborne pathogens of strawberry A. BURKHARDT (1), T. Miles (2), M. Ramon (1), S. Koike (3), F. Martin (1) (1) USDA, U.S.A.; (2) CSUMB, U.S.A.; (3) Cooperative Extension Monterey County, U.S.A. View Abstract

Utilizing mitochondrial loci to develop TaqMan and recombinase polymerase amplification assays for the genus Pythium T. MILES (1), A. Burkhardt (2), F. Martin (2) (1) California State University Monterey Bay, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Identification of virus species infecting pepper in Guangdong province of China Y. Tang (1), Z. He (1) (1) Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, China View Abstract

A CANARY Assay for Phytophthora spp. Z. LIU (1), D. Kalkofen (1), A. Flannery (1), G. Wei (2), F. Nargi (3), Z. Liu (2), G. Abad (2), J. Bienapfl (2), M. Nakhla (2) (1) PathSensors, Inc., U.S.A.; (2) USDA-APHIS-PPQ-S&T-Center for Plant Health Science and Technology (CPHST), U.S.A.; (3) Bioen View Abstract

Development of molecular diagnostic tools for the invasive oomycete pathogen Phytophthora tentaculata N. Luecke (1), S. Koenig (1), T. Miles (2) (1) CSU Monterey Bay, U.S.A.; (2) California State University Monterey Bay, U.S.A. View Abstract

Identification of genomics-based detection assay for Rhizoctonia solani anastomosis groups T. MILES (1), J. Cerda (1) (1) CSU Monterey Bay, U.S.A. View Abstract

Detection of Erysiphe necator fungicide-resistant alleles in leaf and air samples using novel molecular diagnostic techniques J. Yamagata (1), B. Warneke (2), T. Neill (3), W. Mahaffee (4), L. Miles (5), A. Schilder (6) (1) CSU Monterey Bay, U.S.A.; (2) Oregon State University, U.S.A.; (3) USDA ARS, U.S.A.; (4) USDA ARS, U.S.A.; (5) Hartnell College, U.S.A.; (6) Michigan State U View Abstract

Nucleotide sequence and genome organization of a novel Panicovirus from Bermuda grass M. TAHIR (1), B. Lockhart (2), S. Grinstead (1), D. Mollov (1) (1) USDA-ARS, U.S.A.; (2) University of Minnesota, Department of Plant Pathology, U.S.A. View Abstract

Two new races and several novel strains of the spinach downy mildew pathogen Peronospora farinosa f. sp. spinaciae C. FENG (1), J. Correll (1), K. Saito (1), K. Kammeijer (2), S. Koike (3) (1) University of Arkansas, U.S.A.; (2) University of California, U.S.A.; (3) University of California Cooperative Extension—Monterey County, U.S.A. View Abstract

Rapid and sensitive detection of tomato chlorotic dwarf viroid in crude plant extracts using isothermal RT-recombinase polymerase amplification R. HAMMOND (1), S. Zhang (2) (1) USDA ARS, U.S.A.; (2) Agdia, Inc., U.S.A. View Abstract

Identification of the causal agents of soft rot of potato in Bangladesh and activity of biocontrol agents against the pathogens F. ELAHI (1) (1) The Ohio state University, U.S.A. View Abstract

Thielaviopsis punctulata Causes Black Scorch Disease on Date Palm in the United Arab Emirates K. EL-TARABILY (1), S. AbuQamar (1), E. Saeed (1), A. Sham (1) (1) United Arab Emirates University, UAE View Abstract

Infectivity analysis of strain L of chickpea chlorotic dwarf virus,a cotton mastrevirus, in Nicotiana benthamiana plants M. MANZOOR (1), A. Bibi (2) (1) Institute of agricultural sciences,University of the punjab, Pakistan; (2) institute of agricultural sciences,university of the punjab, Pakistan View Abstract

Three races of Xanthomonas campestris pv. vitians causing bacterial leaf spot on lettuce identified. C. BULL (1), M. Trent (2), R. Hayes (3) (1) Department of Plant Pathology and Environmental Microbiology, Penn State University, U.S.A.; (2) USDA/ARS, U.S.A.; (3) USDA/ARS, U.S.A. View Abstract

PCR Assays for the Detection of Xanthomonas euvesicatoria, Causal Agent of Bacterial Spot on Pepper and Tomato Plants R. JEONG (1), S. Son (2), M. Kyeon (2), H. Lee (3), J. Cha (2) (1) Chungbuk National University, Korea; (2) Department of Plant Medicine, Chungbuk National University, Korea; (3) Animal and Plant Quarantine Agency, Korea View Abstract

Early detection and quantification of Pseudoperonospora cubensis airborne sporangia using real-time PCR A. RAHMAN (1), L. Quesada-Ocampo (1) (1) NCSU, U.S.A. View Abstract

The prevalence of grapevine leafroll and red blotch diseases in Washington vineyards J. ADIPUTRA (1), P. Swamy (1), B. Donda (1), B. Bagewadi (1), N. Natra (1), R. Naidu (1) (1) Washington State University, U.S.A. View Abstract

Complete nucleotide sequences of a new bipartite begomovirus from Malvastrum sp. plants with bright yellow mosaic symptoms in South Texas O. ALABI (1), C. Villegas (2), L. Gregg (3) (1) Dept. of Plant Pathology & Microbiology, Texas A&M University AgriLife Research & Extension Center, U.S.A.; (2) South Texas College, U.S.A.; (3) Texas A&M AgriLife Research and Extension Center, U.S.A. View Abstract

Morphological and Molecular Characterization of Plant-Parasitic Nematodes Populations from Corn Fields in Ohio A. SIMON (1), T. Niblack (1), P. Paul (2), H. Lopez-Nicora (1) (1) OHIO STATE UNIVERSITY, U.S.A.; (2) Ohio State University, U.S.A. View Abstract

Rapid differentiation of Claviceps species occurring in Oregon and Washington using high resolution melting curve analysis N. KAUR (1), R. Cating (2), J. Dung (3), S. Alderman (4), D. Walenta (5), P. Hamm (1), K. Frost (1) (1) Oregon State University, U.S.A.; (2) Oregon State University, U.S.A.; (3) Oregon State University, U.S.A.; (4) USDA-ARS National Forage Seed production View Abstract

Occurrence of a Citrus canker strain of limited host specificity in Texas M. KUNTA (1), J. da Graça (1), B. Salas (2), D. Bartels (2), J. Park (1), G. Santillana (3), V. Mavrodieva (3) (1) Texas A&M University-Kingsville Citrus Center, U.S.A.; (2) USDA APHIS PPQ CPHST Mission Laboratory, U.S.A.; (3) CPHST Beltsville Laboratory View Abstract

Fungal Species Associated with Olive Dieback of Branches and Evaluation of Cultivar Resistance to Botryosphaeriaceae species J. Moral (1), C. Agustí-Brisach (2), M. Pérez-Rodríguez (2), C. Xavíer (2), A. Rhouma (3), A. Trapero (2) (1) University of California, Davis, Kearney Agricultural Research and Extension Center, U.S.A.; (2) Departamento de Agronomía, ETSIAM, Universidad d View Abstract

BioPCR: An improved method for detection of Colletotrichum acutatum in asymptomatic strawberry nursery plants P. SUDARSHANA (1), K. Mani (1), P. Randhawa (1), T. Walters (2) (1) California Seed and Plant Labs, U.S.A.; (2) Walters Ag Research, U.S.A. View Abstract

Early detection of Leifsonia xyli subsp. xyli, the causal agent of ratoon stunting disease, in sugarcane seedlings. D. OLIVERA (1), A. Urashima (1) (1) Federal University of Sao Carlos, Brazil View Abstract

Interaction between a rust fungus and Colletotrichum truncatum J. DIANESE (1), É. SOUZA (1), H. VALE (1), R. PEREIRA-CARVALHO (1) (1) DEPARTAMENTO DE FITOPATOLOGIA, UNIVERSIDADE DE BRASÍLIA, Brazil View Abstract

Viability of Candidatus Liberibacter asiaticus in grapefruit leaves at different stages of maturity and Huanglongbing disease symptom development M. KUNTA (1), E. Louzada (1), P. Vedasharan (1) (1) Texas A&M University-Kingsville Citrus Center, U.S.A. View Abstract

The phytoplasma associated with purple woodnettle witches’-broom disease in Taiwan represents a new subgroup of the aster yellows phytoplasma group F. JAN (1), Y. Tseng (1), C. Chang (2) (1) Department of Plant Pathology/ National Chung Hsing University, Taiwan; (2) Department of Plant Pathology/ University of Georgia, Taiwan View Abstract

Investigation of primary infection period of apple blotch and circular leaf spot based on loop-mediated isothermal amplification assay in Korea H. JUNG (1), S. Lee (2), S. Lee (2), J. Keum (2), S. Park (2), H. Woo (3), Y. Lim (4), I. Kang (2) (1) College of Agricultural and Life Sciences, Kyungpook National University, South Korea; (2) College of Agricultural and Life Sciences, Kyungpook National View Abstract

Detection of Apple scar skin viroid in apple fruits by reverse transcription loop-mediated isothermal amplification (RT-LAMP) S. KWON (1), I. Cho (2), S. Choi (1), J. Yoon (1), G. Choi (1) (1) National Institute of Horticultural and Herbal Science, South Korea; (2) National Institute of Horticultural and Herbal Scicence, South Korea View Abstract

A new paradigm for early diagnosis tool for major fungal disease in apple and persimmon S. LEE (1), M. Jeon (2), J. Kim (3), H. Jung (1) (1) College of Agricultural and Life Sciences, Kyungpook National University, South Korea; (2) School of Electrical Engineering and Computer Science, Kyungpook National University, South Korea; (3) School o View Abstract

Real-time PCR detection and discrimination of the parsley pathogens Pseudomonas syringae pv. apii and Pseudomonas syringae pv. coriandricola J. REINTKE (1), G. Hiddink (2), D. Sanchez Mendez (2) (1) Enza Zaden BV, Netherlands; (2) Enza Zaden BV., Netherlands View Abstract

Red clover vein mosaic virus (RCVMV), a recently reported disease agent from alfalfa, cultivated crops and weeds in Saudi Arabia I. ALSHAHWAN (1), I. AlShahwan (2) (1) King Saud University, Saudi Arabia; (2) College of Food and Agric. Sciences, King Saud University, Saudi Arabia View Abstract

Mycosphaerellaceae associated with greasy spot of citrus in different climatic regions A. VICENT (1), V. Aguilera-Cogley (2), J. Armengol (3), M. Berbegal (3) (1) Instituto Valenciano de Investigaciones Agrarias (IVIA). Moncada 46113, Valencia, Spain., Spain; (2) Laboratorio de Protección Vegetal, Instituto de Investigaciones Agropecuarias View Abstract

Virus diseases: a major threat to high value vegetable crops in Bangladesh and Nepal A. FAYAD (1), A. Fayad (1), R. Naidu (2) (1) Virginia Polytechnic Institute and State University, U.S.A.; (2) Washington State University, U.S.A. View Abstract

First report of tomato late blight disease in Oman S. Al-Kaabi (1), M. Al-Jabri (1), W. Al-Shibili (1), W. Fry (2), A. Al-Adawi (1), H. Mayton (3) (1) Ministry of Agriculture and Fisheries Sultanate of Oman, Oman; (2) Cornell University, U.S.A.; (3) Ministry of Agriculture and Fisheries Sultanate of Oman, View Abstract

Identifying and characterizing fungal pathogens causing seedling diseases of soybean through a multi-state survey A. WARNER (1), J. Bond (2), A. Fakhoury (2) (1) Southern Illinois University Carbondale, U.S.A.; (2) Southern Illinois University Carbondale, U.S.A. View Abstract

Fusarium canker on holly in Norway G. STRØMENG (1), V. Talgø (1), A. Stensvand (1), J. Razzaghian (1) (1) NIBIO, Norway View Abstract

DNA-nanosensor based diagnostics of plant pathogens A. BAETSEN-YOUNG (1), M. Vasher (1), E. Alocilja (1), B. Day (1) (1) Michigan State University, U.S.A. View Abstract

Development of conventional and Real-time RT-PCR assays for Strawberry necrotic shock virus T. THEKKE VEETIL (1), T. Ho (2), V. Whitaker (3), I. Tzanetakis (2) (1) Uniersity of Arkansas, U.S.A.; (2) University of Arkansas, U.S.A.; (3) University of Florida, U.S.A. View Abstract

Effect of leaf spot pathogens and fungicide application on Bacterial leaf streak development in wheat under field conditions in South Dakota S. ALI (1), S. Sehgal (1), K. Glover (1), N. Kaur (1) (1) South Dakota State University, Brookings, SD, U.S.A. View Abstract

Validation of a novel gene target for detection and quantification of Clavibacter michiganensis subsp. nebraskensis, the causal agent of Goss’s wilt R. MCNALLY (1), C. Ishimaru (2), D. Malvick (2) (1) University of Minnesota, U.S.A.; (2) University of Minnesota, U.S.A. View Abstract

Race characterization of Pyrenophora tritici-repentis population from Lithuania and Romania A. SIDRAT (1), S. Ali (2), Z. Liatukas (3), M. Ittu (4), S. Sehgal (2), N. Kaur (2) (1) South Dakota State University, Brookings, SD, U.S.A.; (2) South Dakota State Universty, Brookings, SD, U.S.A.; (3) Institute of Agriculture, Lithuania Research Center for Agriculture and Forestry, Instituto al., Akademija 58344, Lithuania; (4) National Agricultural Research and Development Institute Fundulea, Calarasi, Romania View Abstract

Development of a quantitative PCR assay to quantify resistance to Diaporthe helianthi and Diaporthe gulyae in sunflower T. OLSON (1), F. Mathew (1), A. Adhikari (1), B. Kontz (1), L. Marek (2); (1) South Dakota State University, Brookings, SD, U.S.A., (2) Iowa State University, Ames, IA, U.S.A. / USDA-ARS View Abstract

Identification of Alternaria species associated with tomato and potato early blight disease in Oman H. MAYTON (1), A. Al-Rubaii (2), S. Al-Kaabi (2), M. Al-Jabri (2), R. Al-Maqbali (2), A. Al-Adawi (2) (1) Ministry of Agriculture and Fisheries Sultanate of Oman, Cornell University, Oman; (2) Ministry of Agriculture and Fisheries Sultanate of Oman, Oman View Abstract

Specific detection of the root-lesion nematode Pratylenchus scribneri using conventional and real-time PCR G. YAN (1), D. Huang (2), G. Yan (3) (1) North Dakota State University, U.S.A.; (2) North Dakota State University, Department of Plant Pathology,, U.S.A.; (3) North Dakota State University, Department of Plant Pathology,, U.S.A. View Abstract

Development of recombinase-polymerase amplification assay for the detection of Western X phytoplasma (‘Candidatus Phytoplasma pruni’) in sweet cherry D. VILLAMOR (1), H. Ferguson (1), K. Eastwell (1) (1) Washington State University, U.S.A. View Abstract

Inmunochemical detection of the Silvelrleaf disease of fruit trees caused by Chondrostereum pupureum D. GRINBERGS (1), J. Chilian (1), A. France (1) (1) Instituto de Investigaciones Agropecuarias, Chile View Abstract

Tomato yellow mottle virus (ToYMoV): characterization of a newly emergent begomovirus associated with tomato disease in Costa Rica. M. MALIANO (1), M. Rojas (1), T. Melgarejo (2), M. Macedo (3), N. Barboza (4), A. Inoue Nagata (3), R. Gilbertson (5) (1) UC Davis, U.S.A.; (2) Universidad Nacional Agraria La Molina, Peru; (3) University of Brasilia, Brazil; (4) Universidad de Costa Rica View Abstract

Rapid diagnostic assay development for detecting patch diseases on turf B. KARAKKAT (1), M. Franchett (1), M. Olson (1), C. Mullenberg (1), P. Koch; (1) Department of Plant Pathology, University of Madison, WI, USA, (2) Department of Plant Pathology and Molecular and Environmental Toxicology Center, University of Wisconsin, Madison, Wiconsin, USA View Abstract

First report of Watermelon chlorotic stunt virus in rain-fed farms in Usfan, Saudi Arabia N. CHINGANDU (1), M. Al-Saleh (2), A Idris (3), J. Brown (1); (1) University of Arizona, Tucson, AZ, U.S.A.; (2) Department of Plant Protection, King Saud University, Saudi Arabia; (3) University of Arizona, School of Plant Sciences, Tucson, AZ, U.S.A. View Abstract

A sociological assessment of Potato virus Y in western Washington: Barriers and bridges to adopting new management practices A. Beissinger (1), C. Benedict (2), J. Goldberger (3), D. Inglis (1) (1) Washington State University Northwestern Washington Research and Extension Center, U.S.A.; (2) Washington State University Whatcom County Extension, U.S.A.; (3) Washington State Univ View Abstract

Real-time and conventional PCR assays for identifying the stubby root nematode Paratrichodorus allius G. YAN (1), D. Huang (2), G. Yan (2) (1) North Dakota State University, U.S.A.; (2) North Dakota State University, Department of Plant Pathology,, U.S.A. View Abstract

Reporting the occurrence of Ralstonia based wilts of chillies in major vegetable growing areas of Punjab A. HAMEED (1), S. Jameel (1), N. Liaqat (1), M. Ashfaq (2), R. Riaz (3), K. Riaz (1) (1) Department of Plant Pathology, University of Agriculture Faisalabad, Pakistan; (2) Department of Plant Pathology, PMAS-Arid Agriculture University Rawalpindi, Pakista View Abstract

Phytogenetic identification of pathogenic and endophytic fungal populations in west coast Douglas-fir foliage D. DANIELS (1), J. Kiser (1) (1) Oregon State University, U.S.A. View Abstract

Evaluation of molecular diagnostic methods for Monilinia species of regulatory concern S. HAYMES (1), K. Zeller (1), Z. Abad (1), L. Knight (1) (1) USDA APHIS PPQ S&T Center for Plant Science and Technology, U.S.A. View Abstract

Optimization of a fluorescence in situ hybridization assay for detection and visualization of Plasmopara obducens from plants and soil C. SALGADO-SALAZAR (1) (1) USDA-ARS, Rutgers University, U.S.A. View Abstract

Developing an innovative molecular toolbox for identification of Phytophthora species with emphasis on species of regulatory concern. Z. Abad (1), J. Bienapfl (1), L. Knight (1), K. Jennings (1), M. Galvez (1), L. Schena (2) (1) USDA APHIS PPQ S&T, U.S.A.; (2) Mediterranean University of Reggio Calabria, Italy View Abstract

Development of a multiplex real-time PCR for the improved detection of citrus canker-causing Xanthomonas V. MAVRODIEVA (1), G. Santillana (1), G. Dennis (2) (1) USDA APHIS PPQ S&T Beltsville Laboratory, U.S.A.; (2) USDA APHIS PPQ S&T, U.S.A. View Abstract

Development and characterization of polyclonal and monoclonal antibodies to Rose rosette virus. R. JORDAN (1), M. Guaragna (1), J. Hammond (1) (1) US National Arboretum, USDA-ARS, U.S.A. View Abstract

A preemptive detection system to screen water for the presence of plant viruses J. Daniel (1), B. Gallucci Mazziero (1), B. Dunn (1), F. Ochoa-Corona (1) (1) Oklahoma State University, U.S.A. View Abstract

Development, testing and pending deployment of a LAMP diagnostic screening method for the Citrus Black Spot pathogen, Guignardia citricarpa. K. ZELLER (1), K. Levin (2), G. Wei (2), G. Abad (2), H. Gomez (3), T. Riley (3), Z. Liu (2) (1) USDA-APHIS-PPQ, CPHST, U.S.A.; (2) USDA-APHIS-PPQ, CPHST, U.S.A.; (3) USDA-APHIS-PPQ, CHRP, U.S.A. View Abstract

Evaluation of Recombinase Polymerase Amplification (RPA) Isothermal Amplification Diagnostic Assay for Phytophthora ramorum. J. BIENAPFL (1), L. Knight (1), Z. Abad (1) (1) USDA APHIS PPQ S&T, U.S.A. View Abstract

A new ‘Candidatus Phytoplasma pini’-related strain associated with witches’-broom of Pinus spp. is detected in Maryland S. COSTANZO (1), J. Rascoe (1), Y. Zhao (2), R. Davis (3), M. Nakhla (1) (1) USDA-APHIS-PPQ-CPHST, U.S.A.; (2) USDA-ARS, U.S.A.; (3) USDA-ARS View Abstract

Association of Grapevine rupestris stem pitting-associated virus and Grapevine Pinot gris virus in declining grapevines on Schwarzman rootstock. H. MCCOWN (1), S. Bag (1), M. Eng (1), M. Sudarshana (2) (1) University of California, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Four species of Phytophthora recovered from roots of American and hybrid chestnut seedlings and associated soils in the southeastern US S. SHARPE (1), S. Jeffers (1), S. Clark (2) (1) Clemson University, U.S.A.; (2) USDA Forest Service, U.S.A. View Abstract

A computer program for fast and easy typing of Ralstonia solanacearum species complex strains into genospecies and sequevars 1&2 M. STULBERG (1), Q. Huang (2) (1) FNPRU, USDA/ARS & ORISE, U.S.A.; (2) FNPRU, USDA/ARS, U.S.A. View Abstract

Survey of Arabis Mosaic and Grape Leaf Roll Associated virus in Maryland vineyards. R. POKHAREL (1) (1) Maryland Dept of Agriculture, U.S.A. View Abstract

Development and validation of a quadruplex real-time RT-PCR assay for simultaneous detection of three Citrus leprosis viruses in plants G. WEI (1), A. Roy (2), W. Schneider (3), R. Brlansky (2), M. Nakhla (1) (1) USDA-APHIS-PPQ-S&T-CPHST, U.S.A.; (2) University of Florida, IFAS, Plant Pathology Department, Citrus Research and Education Center, U.S.A.; (3) USDA-ARS-FDWSRU, U.S.A. View Abstract

Necrotic Streaking of Asiatic Lilies caused by Plantago asiatica mosaic virus in Chile X. BESOAIN (1), A. Vidal Takasaki (2), R. Camps (2) (1) Pontificia Universidad Católica de Valparaíso, Chile; (2) Pontificia Universidad Católica de Valparaíso, Chile View Abstract

Virus detection of Tobamovirus with wide spectrum degenerate oligonucleotides by TD RT-PCR High Resolution Melting J. GARCIA SUAREZ (1), S. Dobhal (1), F. Ochoa-Corona (1) (1) Oklahoma State University, U.S.A. View Abstract

Sensitive detection and discrimination of HPWMoV, WSMV and TriMV using multiplex RT-PCR and High Resolution Melting: Part II A. LARREA-SARMIENTO (1), M. Arif (2), F. Ochoa-Corona (3), A. Olmedo-Velarde (4), J. Olson (3) (1) Universidad de las Américas, Ecuador; (2) Kansas State University, U.S.A.; (3) Oklahoma State University, U.S.A.; (4) Universidad de las Fuerzas Armadas ESP View Abstract

Vermiform plant-parasitic nematodes on soybean in North Dakota and their relationship with soybean cyst nematode G. YAN (1), G. Yan (2), A. Plaisance (3) (1) North Dakota State University, U.S.A.; (2) North Dakota State University, Department of Plant Pathology,, U.S.A.; (3) North Dakota State University, Department of Plant Pathology,, U.S.A. View Abstract

Distribution and vertical transmission of Southern tomato virus in tomato S. COSKAN (1), R. Alcalá-Briseño (1), J. Polston (1) (1) UNIVERSITY OF FLORIDA, U.S.A. View Abstract

Using Color Spectrophotometry to Evaluate Disease Severity of Macrophomina phaseolina in Soybean J. JORDAN (1), A. Mengistu (2), H. Kelly (1) (1) University of Tennessee, U.S.A.; (2) USDA, U.S.A. View Abstract

First report of Botrytis pseudocinerea in blueberry fields in southern Chile E. BRICEÑO (1), E. Briceño (2), S. Aguirre (3), A. Behn (2) (1) Universidad Austral de Chile, Chile; (2) Universidad Austral Chile, Chile; (3) Univ austral Chile, Chile View Abstract

Phytophthora root and crown rot on field-grown lavender plants in 2015 S. JEFFERS (1), S. Sharpe (1), M. Williamson (2) (1) Clemson University, U.S.A.; (2) Clemson University, U.S.A. View Abstract

Extracting DNA for qPCR amplification from plant tissue in ELISA buffer N. OSTERBAUER (1), S. Navarro (2) (1) Oregon Dept. of Agriculture, U.S.A.; (2) Oregon Dept. of Forestry, U.S.A. View Abstract

Multiplex RT-PCR detection of eight viruses infecting cucurbits and discrimination using High Resolution Melting analysis L. PEÑA ZUNIGA (1), F. Ochoa-Corona (1), A. Ali (2) (1) Oklahoma State University, U.S.A.; (2) University of Tulsa, U.S.A. View Abstract

Loop-mediated isothermal amplification for the detection of soft rot causing Dickeya spp. G. MARRERO (1), J. Yasuhara-Bell (2), M. Melzer (2), A. Alvarez (2) (1) University of Hawaii at Manoa, U.S.A.; (2) University of Hawaii at Manoa, U.S.A. View Abstract

Toward broad detection of emaraviruses: Endpoint RT-PCR A. OLMEDO-VELARDE (1), F. Ochoa-Corona (2), T. Elbeaino (3) (1) Universidad de las Fuerzas Armadas ESPE, Ecuador; (2) Oklahoma State University, U.S.A.; (3) Istituto Agronomico Mediterraneo di Bari, Italy View Abstract

Discriminating Potexvirus species by RT-PCR coupled to High Resolution Melting A. OLMEDO-VELARDE (1), F. Ochoa-Corona (2) (1) Universidad de las Fuerzas Armadas ESPE, Ecuador; (2) Oklahoma State University, U.S.A. View Abstract

Rose rosette virus detection using loop-mediated isothermal amplification (LAMP) A. SALAZAR AGUIRRE (1), S. Molina Cárdenas (1), F. Ochoa-Corona (2), J. Olson (2) (1) Universidad de las Fuerzas Armadas ESPE, Ecuador; (2) Oklahoma State University, U.S.A. View Abstract

In-field detection of the select agent Rathayibacter toxicus using loop-mediated isothermal amplification M. ARIF (1), G. Busot (2), R. Mann (3), B. Rodoni (4), J. Stack (5) (1) Kansas State University, U.S.A.; (2) Department of Plant Pathology, Kansas State University, U.S.A.; (3) Department of Economic Development, Jobs, Transport and Resources, Latrobe Uni View Abstract

Three genomic regions of Cilevirus allows detection and discrimination of two related species infecting citrus. W. TURIZO (1), O. Oliveros (1), F. Ochoa-Corona (2) (1) Universidad Nacional de Colombia, Colombia; (2) Oklahoma State University, U.S.A. View Abstract

Rubus yellow net virus: an integrated element in the raspberry genome A. Diaz-Lara (1), N. Mosier (2), K. Keller (2), R. Martin (2) (1) Oregon State University, U.S.A.; (2) USDA-ARS Horticultural Crops Research Unit, U.S.A. View Abstract

Evidence for seed transmission of Xylella fastisiosa in pecan (Carya illinoinensis). K. CERVANTES (1), D. Ray (1), R. Stamler (2), J. French (1), J. Soneji (3), R. Heerema (4), L. Grauke (5), J. Randall (4) (1) New Mexico State University, U.S.A.; (2) New Mexico State University, U.S.A.; (3) NMSU, U.S.A.; (4) New Mexico State Universitye, View Abstract

Raspberry leaf curl disease P. DI BELLO (1), A. Diaz-Lara (2), R. Martin (3) (1) Oregon State University, U.S.A.; (2) Oregon State University`, U.S.A.; (3) USDA-ARS Horticultural Crops Research Unit, U.S.A. View Abstract

Recombinase polymerase-based diagnostics for in-field detection of Pseudomonas syringae pv. actinidiae. J. STACK (1), M. Arif (2), J. Rascoe (3), M. Nakhla (3), G. Busot (1) (1) Kansas State University, U.S.A.; (2) Kansas State Univesrity, U.S.A.; (3) USDA APHIS PPQ CPHST, U.S.A. View Abstract

Fungal Diseases of Stevia rebaudiana Grown in Eastern Tennessee T. COLLINS (1), M. Dee (1), H. Korotkin (1), D. Hensley (1), B. Ownley (1) (1) University of Tennessee, U.S.A. View Abstract

Candidatus Liberibacter solanacearum associated to Physalis philadelphica, a new solanaceous host H. SILVA-ROJAS (1), A. Contreras-Rendon (2), J. Sanchez-Pale (2) (1) Colegio de Postgraduados, Mexico; (2) Universidad Autonoma del Estado de Mexico, Mexico View Abstract

On-site detection of Pythium ultimum in potatoes using loop-mediated isothermal amplification (LAMP) J. WOODHALL (1), P. Wharton (2), S. Dangi (2), K. Perkins (3), J. Azcona (3) (1) University of Idaho, U.S.A.; (2) University of Idaho, U.S.A.; (3) Fera Science Ltd, United Kingdom View Abstract

Diseases of Plants: Disease Detection and Diagnosis

Validation of RT-PCR High Resolution Melting as a detection method of Tombusvirus F. OCHOA (1)Y. Carrillo Tarazona (1), (1) Oklahoma State University, U.S.A.<br>Plant waterborne viruses, such as some in the genus Tombusvirus, spread as colloids in water and also by mechanical transmission. Broad detection and simultaneous species discrimination of viruses in this genus is needed for testing field samples. RT-PCR coupled to High Resolution Melting (HRM) has been used for different forensic applications and allows species differentiation as well as SNP detection. Tombusvirus. complete genomic sequences retrieved from the NCBI-Genbank were used to design primers for broad detection using this method. Ten different virus species, Carnation italian ringspot virus (CIRV), Cucumber necrosis virus (CNV), Cymbidium ringspot virus (CymRSV), Grapevine Algerian latent virus (GALV), Neckar river virus (NRV), Pelargonium leaf curl virus (PLCV), Pelargonium necrotic spot virus (PNSV), Petunia asteroid mosaic virus (PetAMV), Tomato bushy stunt virus (TBSV) and Pelargonium line pattern virus (PLPV) were sourced by the DSMZ (Germany) and AGDIA (USA) and used for nucleic acid extraction. All viruses tested positive to broad detection endpoint RT-PCR with primers designed to react when coupled to HRM. Melting curve predictions calculated by uMeltSM algorithms were compared with data obtained using three DNA dyes (SYBR® Green, SYTO®9 and LCGreen®). Results with LCGreen® are closer to the predicted data calculated by uMeltSM when the amplicon size is between 50-200bp. View Abstract

Diseases of Plants: New & Emerging Diseases

Identification and proposed species demarcation for Cacao swollen shoot virus and previously unidentified badnaviruses of Theobroma cacao N. CHINGANDU (1), M. Zia-Ur-Rehman (2), T. Sreenivasan (3), S. Surujdeo-Maharaj (4), P. Umaharan (4), K. Kouakou (5), R. Aka (5), G. Ameyaw (6), O. Gutierrez (7), J. Brown (1) (1) University of Arizona, Tucson, AZ, U.S.A.; (2) IAGS, University of Punjab, Lahore, Pakistan; (3) Cocoa Research Centre, The University of the West Indies, St. Augustine, Trinidad; (4) Cocoa Research Center, The University of the West Indies, St. Augustine, Trinidad; (5) Centre National de Recherché Agronomique (CNRA) Programme Cacao, Divo, Ivory Coast; (6) Cocoa Research Institute of Ghana, Tafo, Ghana; (7) USDA-ARS Subtropical Horticultural Research Station, Miami, FL, U.S.A. View Abstract

Laurel wilt, caused by Raffaelea lauricola, is detected for the first time outside the southeastern USA R. PLOETZ (1), Y. Thant (2), M. Hughes (3), T. Dreaden (4), J. Konkol (1), A. Kyaw (2), J. Smith (3), C. Harmon (3) (1) University of Florida, U.S.A.; (2) Winrock International, Farmer-to-Farmer Program, Yangon, Myanmar, Burma; (3) University of Florida, View Abstract

Bacterial black spot of mango, Mangifera indica, caused by Xanthomonas citri pv mangiferaeindicae, is confirmed in the Western Hemisphere G. SANAHUJA (1), R. Ploetz (1), P. Lopez (1), J. Konkol (1), A. Palamateer (1) (1) University of Florida, U.S.A. View Abstract

Susceptibility of eight untested species of Cucurbitaceae to gummy stem blight under field conditions G. RENNBERGER (1), A. Keinath (1) (1) Coastal Research and Education Center, Clemson University, U.S.A. View Abstract

An invasive lethal phytoplasma disease threatening stone fruit production: detection, epidemiology and management. Y. A. JAWDAH (1), M Jawhari (2), P. Tawidian (2), E. Choueiri (3), F. Quaglino (4), P. Bianco (4), A. Alma (4), M. Moilno-Lova (5); (1) American University of Beirut, Beirut, Lebanon, (2) FAFS, AUB, (3) LARI, (4) UNIMI, Milan, Italy, (4) IDISAFA, Univ. Di Torino, Torino, Italy, (5) NNIMI, Milan, Italy View Abstract

Multiple Pestalotiopsis and Neopestalotiopsis species cause flower bight of macadamia in Australia O. AKINSANMI (1), S. Nisa (1), O. Jeff-Ego (1), A. Drenth (2) (1) University of Queensland, Brisbane, Australia; (2) University of Queensland, , Australia View Abstract

Characterization of viral particles formed by Grapevine vein clearing virus (GVCV) Y. ZHANG (1), M. Adhab (1), J. Schoelz (1) (1) University of Missouri, U.S.A. View Abstract

Mucor Rot – An Emerging Postharvest Disease of Mandarin Fruit Caused by Mucor piriformis and other Mucor spp. in California. S. SAITO (1), T. Michailides (2), C. Xiao (1) (1) USDA-ARS, San Joaquin Valley Agricultural Sciences Center, U.S.A.; (2) Kearney Agricultural Research & Extension Center, UC-Davis, Division of Agriculture and Natural Resources, U.S.A. View Abstract

Botrytis californica, a new Botrytis species causing gray mold in blueberries and table grapes in California. S. SAITO (1), D. Margosan (2), T. Michailides (3), C. Xiao (1) (1) USDA-ARS, San Joaquin Valley Agricultural Sciences Center, U.S.A.; (2) USDA-Agricultural Research Service, San Joaquin Valley Agricultural Sciences Center, U.S.A.; (3) Kearney Agricultural View Abstract

Identification of a new Mastrevirus of Saccharum barberi, Saccharum officinarum and Saccharum spontaneum in Florida W. BOUKARI (1), R. Alcala-Briseño (2), S. Kraberger (3), E. Fernandez (4), D. Filloux (4), J. Comstock (5), A. Varsani (3), P. Roumagnac (4), J. Polston (1), P. Rott (6) (1) University of Florida, Gainesville, FL, U.S.A.; (2) University of Florida, Gainesville, U.S.A.; (3) University of Canterbury, Christchurch, New Zealand; (4) CIRAD, Montpellier, France; (5) USDA-ARS, Canal Point, FL, U.S.A.; (6) University of Florida, Belle Glade, FL, U.S.A. View Abstract

Raffaelea arxii may be the primary symbiont of Xyleborus affinis J. SAUCEDO (1), R. Ploetz (2), D. Carrillo (2), J. Konkol (2), J. Smith (1), J. Rollins (1), S. Ochoa (3) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A.; (3) Universidad Michoacana de San Nicolás de Hidalgo, Mexico View Abstract

Web blight of spinach in the desert southwest caused by Pythium aphanidermatum C. FENG (1), B. Liu (1), M. Matheron (2) (1) University of Arkansas, U.S.A.; (2) University of Arizona, U.S.A. View Abstract

Sequence variation between isolates of Plantago asiatica mosaic virus from lily and other hosts J. HAMMOND (1), M. Reinsel (1) (1) USDA-ARS, USNA, Floral and Nursery Plants Research Unit, U.S.A. View Abstract

Root and shoot susceptibility of peach/almond rootstock to pistachio bushy top syndrome isolates of Rhodococcus spp. E. Fichner (1), S. Dhaouadi (2) (1) University of California Divisision of Agriculture and Natural Resources, U.S.A.; (2) University of California Division of Agriculture and Natural Resources, U.S.A. View Abstract

Stone fruit survey efforts in Texas monitoring for Plum Pox Virus, European Stone Fruit Yellows & Light Brown Apple Moth: 2015-2016. K. ONG (1), S. Rhodes (1) (1) Texas A&M AgriLife Extension Service, U.S.A. View Abstract

Survey for Grapevine Pinot gris virus infecting Grapevine in the Foundation Plant Services Vineyards at the University of California, Davis M. AL RWAHNIH (1), N. Westrick (2), D. Golino (2), A. Rowhani (2) (1) University of California, Davis, U.S.A.; (2) University of California, Davis, U.S.A. View Abstract

Association of a mixed infection of Lettuce chlorosis virus, Papaya ringspot virus, and Tomato yellow leaf curl virus-IL in a Texas papaya orchard O. Alabi (1), M. Al Rwahnih (2), J. Brown (3), J. Jifon (4), J. Park (5), L. Gregg (6), M. Sétamou (7), A. Idris (3) (1) Dept. of Plant Pathology & Microbiology, Texas A&M University AgriLife Research & Extension Center, U.S.A.; (2) Department of Plant Pa View Abstract

Genome sequence analysis of a legume-infecting Tomato chlorotic spot virus isolate R. ADEGBOLA (1), R. Kemerait (2), S. Adkins (3), R. Naidu (1) (1) Washington State University, U.S.A.; (2) Department of Plant Pathology, The University of Georgia, U.S.A.; (3) USDA ARS USHRL, U.S.A. View Abstract

Emergence of a novel white stripe disease pathogen Stenotrophomonas maltophilia strain Sia5 in rice fields of Punjab under the climate change scenario K. RIAZ (1), K. Riaz (2), A. Dilferoze (3), M. Alam (3), A. Riaz (4), S. Jameel (5), S. Khan (6), A. Hannan (7) (1) Department of Plant Pathology, University of Agriculture Faisalabad, Pakistan; (2) University of Agriculture Faisalabad, Pakistan; (3) Univ View Abstract

Diaporthe and spruce decline: incidence, pathogenicity, and population genetics C. MCTAVISH (1), D. Fulbright (2), A. Jarosz (1) (1) Michigan State University, U.S.A.; (2) Michigan State University, U.S.A.; (3) Michigan State University, U.S.A. View Abstract

Powdery mildews on native plants in Utah E. LAURITZEN (1) (1) Utah State University, U.S.A. View Abstract

New canker disease of Incense-cedar in Oregon caused by Phaeobotryon cupressi J. WEILAND (1), R. Sniezko (2), M. Wiseman (3), M. Serdani (3), M. Putnam (3) (1) USDA-ARS, Horticultural Crops Research Laboratory, U.S.A.; (2) USDA Forest Service, Dorena Genetic Resource Center, U.S.A.; (3) Oregon State University, Botany and Plant Pat View Abstract

Wheat blast is caused by multiple Pyricularia species, including Pyricularia graminis-tritici sp. nov. V. CASTROAGUDIN (1), S. Moreira (2), D. Pereira (3), S. Moreira (4), P. Brunner (3), J. Maciel (5), P. Crous (6), B. McDonald (3), E. Alves (7), P. Ceresini (4) (1) University of Sao Paulo State, Brazil; (2) Federal University of Lavras, Brazil; (3) Insti View Abstract

Red rust of bromeliads caused by a parasitic alga in Florida G. Sanahuja (1), P. Lopez (1), A. Palmateer (1) (1) University of Florida, U.S.A. View Abstract

Phytophthora nicotianae causing foliar blight of Codiaeum variegatum and Zamioculcas zamiifolia in Florida G. Sanahuja (1), P. Lopez (1), A. Palmateer (1) (1) University of Florida, U.S.A. View Abstract

Xylella fastidiosa isolates differ in the ability to undergo genetic recombination P. KANDEL (1), R. Almeida (2), L. De La Fuente (1) (1) Department of Entomology and Plant Pathology, Auburn University, U.S.A.; (2) Department of Environmental Science, Policy and Management, UC Berkeley, U.S.A. View Abstract

Blueberry green mosaic symptoms are associated with the presence of a new vitivirus T. THEKKE-VEETIL (1), T. Ho (1), J. Polashock (2), I. Tzanetakis (1) (1) University of Arkansas, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

First detection of the stubby root nematode Paratrichodorus allius on potato in North Dakota and on sugarbeet in Minnesota G. Yan (1), A. Plaisance (2), D. Huang (1), Z. Handoo (3) (1) North Dakota State University, Department of Plant Pathology,, U.S.A.; (2) North Dakota State University, Department of Plant Pathology, U.S.A.; (3) USDA-ARS, Nematology Laboratory,, U.S.A. View Abstract

High diversity in the population of an emerging blackberry pathogen, Fusarium oxysporum. A. PASTRANA (1), S. Kirkpatrick (1), T. Gordon (1) (1) University of California, Davis, U.S.A. View Abstract

New Botrytis species affecting strawberry on the east coast G. SCHNABEL (1), M. Dowling (1), M. Hu (1) (1) Clemson University, U.S.A. View Abstract

The impact of laurel wilt caused by Raffaelea lauricola on clonal populations of pondberry (Lindera melissifolia) S. BEST (1), S. Fraedrich (1) (1) USDA Forest Service, Athens, GA, U.S.A. View Abstract

The laurel wilt story: introduction and impact of an exotic vector (Xyleborus glabratus) and pathogen (Raffaelea lauricola) M. HUGHES (1), J. Riggins (2), A. cognato (3), F. Koch (4), C. Anderson (5), T. Dreaden (6), J. Formby (2), R. Ploetz (7), J. Smith (8) (1) University of Florida, School of Forest Resources and Conservation, U.S.A.; (2) Mississippi State University, Depar View Abstract

Survey for viruses of grapevine (Vitis vinifera L.) in coastal vineyards of Croatia D. VONCINA (1), M. Al Rwahnih (2), A. Rowhani (2), R. Almeida (3) (1) Department of Plant Pathology, University of Zagreb Faculty of Agriculture, Croatia; (2) Department of Plant Pathology, University of California, Davis, U.S.A.; (3) Department of Enviro View Abstract

Unraveling Silverleaf disease: Reversion of foliar symptoms and plants recovery D. GRINBERGS (1), A. France (1), J. Chilian (1) (1) Instituto de Investigaciones Agropecuarias, Chile View Abstract

Detection and characterization of a novel potyvirus, Crinum mosaic virus, in ornamental Crinum. R. JORDAN (1), A. Khawaja (1), M. Guaragna (1) (1) US National Arboretum, USDA-ARS, U.S.A. View Abstract

Viral metagenomics of Caladium x hortulanum (Araceae) in Florida R. ALCALA BRISEÑO (1), M. Londoño (1), J. Polston (1); (1) University of Florida, U.S.A. View Abstract

Survey on pathogenic Xanthomonas recovered from different lettuce cultivars in Canada. V. TOUSSAINT (1), D. Xu (1), P. Hébert (1), M. Cadieux (1), M. Ciotola (1), H. Van der Heyden (2), D. Rekika (3), S. Jenni (1) (1) Agriculture and Agri-Food Canada, Canada; (2) Compagnie de recherche Phytodata, Canada; (3) Fondation pour l'amélioration gé View Abstract

First report and characterization of Taro bacilliform virus in the USA M. MELZER (1), K. Dey (1), A. Chan Borges (1), M. Long (1), W. Borth (1), N. Wichitrnithed (1), J. Hu (1), R. Li (2) (1) University of Hawaii, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Fungi in the wood: The fungi associated with the ambrosia beetle, Xylosandrus germanus and its galleries in Malus domestica S. VILLANI (1), K. Ayer (2), D. Breth (3), K. Cox (2) (1) North Carolina State University, U.S.A.; (2) Cornell University, U.S.A.; (3) Cornell Cooperative Extension, U.S.A. View Abstract

Cytospora leucostoma is the most virulent and prevalent causal agent of Cytospora Canker on peaches on the Western Slope of Colorado J. Stewart (1), K. Otto (1), I. Minas (2), S. Miller (1) (1) Bioagricultural Sciences and Pest Management, Colorado State University, U.S.A.; (2) Department of Horticulture and Landscape Architecture; Western Colorado Research Center Colorado State Univer View Abstract

Seed-borne virome in cucurbits S. SABANADZOVIC (1), N. Aboughanem-Sabanadzovic (1) (1) Mississippi State University, U.S.A. View Abstract

Reemergence of the torradovirus, Tomato necrotic dwarf virus, in processing tomatoes in the Central Valley of California O. BATUMAN (1), M. Vasquez-Mayorga (1), J. Nunez (2), L. Hladky (3), W. Wintermantel (3), R. Gilbertson (1) (1) University of California Davis, U.S.A.; (2) University of California Cooperative Extension, U.S.A.; (3) United States Department of Agriculture View Abstract

Viruses of brugmansia in Mississippi N. ABOUGHANEM-SABANADZOVIC (1), A. Lawrence (1), S. Sabanadzovic (1) (1) Mississippi State University, U.S.A. View Abstract

Molecular Detection of Ti ringspot associated virus, a novel emaravirus associated with ti ringspot disease of Cordyline fruticosa (L.) in Hawai’i M. MELZER (1), A. Park (1) (1) University of Hawaii, U.S.A. View Abstract

Is there resistance to Rose Rosette Disease among cultivated roses? K. ONG (1), J. Olson (2), T. Evans (3), M. Windham (4), E. Roundey (5), J. Lau (5), D. Byrne (5) (1) Texas A&M AgriLife Extension Service, U.S.A.; (2) Oklahoma State University, U.S.A.; (3) Department of Plant and Soil Sciences, University of Delaware, U. View Abstract

Pathogenicity tests confirm Macrophomina phaseolina as an aggressive fungal pathogen of flowering dogwood (Cornus florida L.) L. MACKASMIEL (1) (1) Tennessee State University, Nashville, TN, U.S.A. View Abstract

Soil survival potential of pistachio bushy top syndrome isolates of Rhodococccus spp. E. FICHTNER (1), S. Dhaouadi (1), E. Molina (2), R. Stamler (2), J. Randall (2) (1) University of California Division of Agriculture and Natural Resources, U.S.A.; (2) New Mexico State University, U.S.A. View Abstract

Dispersal at Multiple Scales: A Key to Outbreak of Disease Epidemics

Simulation modeling and mitigation of climate change effects on generational migrations of a crop pest: Fall armyworm (Spodoptera frugiperda). J. WESTBROOK (1), R. Nagoshi (2), R. Meagher (2), S. Fleischer (3), S. Jairam (4) (1) USDA-ARS, U.S.A.; (2) USDA-ARS, U.S.A.; (3) Pennsylvania State University, U.S.A.; (4) Self-employed, U.S.A. View Abstract

Dispersal of Pseudoperonospora cubensis: Basis for Forecasting Cucurbit Downy Mildew Epidemics P. OJIAMBO (1) (1) North Carolina State University, U.S.A. View Abstract | View Presentation

Physical aspects of Dispersal of Spores of Plant Pathogens. D. Aylor (1) (1) Connecticut Agricultural Experiment Station, U.S.A. View Abstract

Introduction: The importance of dispersal in botanical epidemics L. MADDEN (1) (1) Ohio State University, U.S.A. View Abstract | View Presentation

A physically-based theoretical model of spore deposition for predicting spread of plant diseases. M. Chamecki (1), S. Isard (2) (1) University of California, Los Angeles, U.S.A.; (2) Penn State University, U.S.A. View Abstract | View Presentation

Effector Biology

Xanthomonas effector kinase XopAU promotes disease symptoms by activation of host MAPKK D. TEPER (1), E. Bosis (1), G. Popov (1), A. Girija (1), G. Sessa (2) (1) Department of Molecular Biology and Ecology of Plants, Tel Aviv University, Israel; (2) Department of Molecular Biology and Ecology of Plants, Tel Aviv University, Israel View Abstract | View Presentation

Dissecting the function and downstream targets of CsLOB1 in citrus S. DUAN (1), H. Jia (1), S. Gowda (1), N. Wang (1) (1) Citrus research and education center, U.S.A. View Abstract

Degradation of the master regulator of plant defense NPR1 by the type III effector HopAB2 Z. FU (1), H. Chen (1), J. Chen (2), Z. Shang (1), M. Li (1), F. Liu (3) (1) University of South Carolina, U.S.A.; (2) Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, China; (3) Institute of Plant Protection, Jiangsu Academy of Ag View Abstract

Resistance of Carolina Gold Select rice to African strains of Xanthomonas oryzae pv. oryzicola is triggered by inactivated TAL effectors L. TRIPLETT (1), S. Cohen (2), C. Heffelfinger (3), A. Bogdanove (4), J. Leach (2) (1) The Connecticut Agricultural Experiment Station, U.S.A.; (2) Colorado State University, U.S.A.; (3) Yale University, U.S.A.; (4) Cornell University, U.S.A.; (5) Colorad View Abstract | View Presentation

Emerging Nano Materials for Disease Management and Insights from Findings in Nano-based Diagnostics

Metal oxide nano materials for management of Verticillium wilt on eggplant and Fusarium wilt on watermelon. W. ELMER (1), J. White (1) (1) The Connecticut Agricultural experiment Station, U.S.A. View Abstract | View Presentation

DNA materials integrating nanotechnology and biotechnology. D. LUO (1) (1) Cornell University, Ithaca, NY, U.S.A. View Abstract

Trophic transfer of engineered nano materials: Will the food chain be compromised? R. DE LA TORRE-ROCHE (1), J. White (1) (1) Connecticut Agricultural Experiment Station, U.S.A. View Abstract | View Presentation

Advanced copper and zinc nanomaterials for management of bacterial canker of citrus. E. JOHNSON (1), M. Myers (2), K. Gerberich (1), S. Santra (3), J. Graham (1) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A.; (3) University of Central Florida, U.S.A. View Abstract

Nano material development, industry technology and status, safety approvals for use as fungicides/bactericides. S. SANTRA (1), S. Santra (1) (1) University of Central Florida, U.S.A. View Abstract | View Presentation

Advanced Nanomaterials for Management of Bacterial Spot of Tomato A. STRAYER-SCHERER (1), Y. Liao (1), I. Ocsoy (2), M. Young (3), W. Tan (4), S. Santra (5), J. Jones (1), M. Paret (6) (1) Department of Plant Pathology, University of Florida, U.S.A.; (2) Department of Analytical Chemistry, Faculty of Pharmacy, Erciyes U View Abstract

Epidemiology: Analytical & Theoretical Plant Pathology

Discussion on calculation of disease severity index values from scales with unequal intervals. K. CHIANG (1), H. Liu (1), C. Bock (2) (1) Division of Biometrics, Department of Agronomy, National Chung Hsing University, Taiwan; (2) USDA-ARS-SEFTNRL, U.S.A. View Abstract

Identification of conducive temperatures for decision support modeling of sugarcane rusts in Florida B. CHAULAGAIN (1), M. Hincapie (1), S. Sanjel (1), C. Fraisse (2), R. Raid (1), P. Rott (1) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A. View Abstract

Comparing epidemics of unique Phytophthora infestans clonal lineages with biometrically enhanced spatio-temporal modeling tools K. MOREY GOLD (1), Z. Zhang (2), D. Rouse (1), A. Gevens (1) (1) University of Wisconsin-Madison, U.S.A.; (2) University of Wisconsin-Madison, U.S.A. View Abstract

Predicting Robust Candidates for a Boxwood Blight Immunoassay: An Automated Computational Workflow with Broad Applications for Phytopathology D. VELTRI (1), D. Luster (2), M. McMahon (2), J. Crouch (1) (1) USDA-ARS, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Epidemiology: Climate Change

Impacts of climate change on wheat powdery mildew epidemics in China Y. Zhou (1), X. Tang (1) (1) Institute of Plant Protection, Chinese Academy of Agricultural Sciences, China View Abstract

Quantifying the potential effects of regional climate change on wheat leaf rust disease in the Grand-Duchy of Luxembourg. M. EL JARROUDI (1), L. Kouadio (2), J. Junk (3), B. Tychon (1), P. Delfosse (3) (1) University of Liege, Belgium; (2) University of Southern Queensland, Australia; (3) Luxembourg Institute of Science & Technology, Luxembourg View Abstract

Distribution models of common bean dry root rot in Brazil: current and predicted disease distribution in climate change scenarios R. Macedo (1), L. Abud (1), F. Yoshida (1), L. Sales (1), E. Barbosa (2), M. Lobo (2), R. Macedo (1) (1) Universidade Federal de Goiás, Brazil; (2) Brazilian Corporation for Agricultural Research (Embrapa), Brazil View Abstract

Discovery of biological drivers of pitch canker disease in a changing climate T. QUESADA (1), T. Quesada (1), C. Staub (1), M. Marsik (1), K. Shin (1), K. Smith (2), J. Hughes (1) (1) University of Florida, U.S.A.; (2) US Forest Service / University of Florida, U.S.A. View Abstract

Screening some rust universal-susceptible wheat varieties for ozone tolerance and some applications. A. MASHAHEET (1), D. Marshall (2), K. Burkey (2), A. Abdelrhim (1), F. Ullah (1) (1) North Carolina State University, U.S.A.; (2) USDA-ARS, North Carolina State University, U.S.A. View Abstract

Effects of vernalization on the differential ozone response of two winter wheat genotypes. A. MASHAHEET (1), D. Marshall (2), K. Burkey (2) (1) North Carolina State University, U.S.A.; (2) USDA-ARS, North Carolina State University, U.S.A. View Abstract

Screening the monosomic lines of the Chinese Spring wheat variety for ozone tolerance. A. MASHAHEET (1), D. Marshall (2), K. Burkey (2), R. Ullah (1), A. Abdelrhim (3) (1) North Carolina State University, U.S.A.; (2) USDA-ARS, North Carolina State University, U.S.A.; (3) North Carolina State University, U.S.A. View Abstract

Potential species distributions of Armillaria solidipes and Pseudotsuga menziesii under contemporary and changing climates in the interior western USA J. HANNA (1), M. Warwell (2), H. Maffei (3), M. Fairweather (4), J. Blodgett (5), P. Zambino (6), J. Worrall (7), K. Burns (8), J. Jacobs (9), S. Ashiglar (2), J. Lundquist (10), M. Kim (11), A. Ross-Davis (2), C. Hoffman (12), R. Mathiasen (12), R. Hofst View Abstract

Epidemiology: Cropping Systems/Sustainability

Spatio-temporal brown eye spot progress of irrigated coffee by central pivot M. SILVA (1), M. Silva (2), E. Pozza (2), E. Chaves (3), G. Vasco (2), P. Paula (3), G. Dornelas (3), M. Silva (3), M. Resende (3) (1) UFLA, Brazil; (2) Lavras Federal University, UFLA, Brazil; (3) Lavras Federal University, UFLA, Brazil View Abstract

Effect of pre-anthesis rainfall patterns on fusarium head blight and deoxynivalenol in wheat: a multi-state study W. BUCKER MORAES (1), K. F. Andersen (1), C. Cowger (2), R. Dill-Macky (3), L. V. Madden (1), P. Anderson Paul (1) (1) Department of Plant Pathology, The Ohio State University, U.S.A.; (2) Department of Plant Pathology, North Carolina State University, U. View Abstract

Changes in frequency of Leptosphaeria maculans avirulence genes in North Dakota. S. Mansouripour (1), K. Chittem (1), Z. Liu (1), L. del Rio Mendoza (1) (1) North Dakota State University, U.S.A. View Abstract

Epidemiology: Pathogen Dispersal

First report of the Asian citrus psyllid, vector of Candidatus Liberibacter asiaticus in Tanzania and their potential further spread in Africa M. SHIMWELA (1), H. Narouei-Khandan (1), S. Halbert (2), M. Keremane (3), G. Minsavage (1), S. Timilsina (1), D. Massawe (4), J. Jones (1), A. van Bruggen (1) (1) University of Florida, U.S.A.; (2) Division of Plant Industry, U.S.A.; (3) USDA, U.S.A.; (4) View Abstract

Teratosphaeria pseudoeucalypti: an emerging pathogen with uncertain impact on Eucalyptus plantations C. PEREZ (1), G. Balmelli (2), S. Simeto (2), E. a (3), M. Codina (3), R. Garcia (3), N. Ramirez (3), O. Bentancur (3), M. Wingfield (4) (1) EEMAC, Universidad de la Republica, Uruguay; (2) INIA Tacuarembo, Uruguay; (3) EEMAC, Universidad de la Republica, View Abstract

Field Survey of Tospoviruses Infecting Tomato in South Florida O. Abdalla (1), S. Zhang (1) (1) University of Florida, U.S.A. View Abstract

Field observations of ascospore discharge of Monilinia vaccinii-corymbosi in northern highbush blueberries G. Dabbah (1), A. Schilder (2) (1) CSU Monterey Bay, U.S.A.; (2) Michigan State University, Department of Plant, Soil and Microbial Sciences, U.S.A. View Abstract

A leaf litter and fruit brown rot life style of Phytophthora syringae in California citrus W. HAO (1), H. Förster (1), T. Miles (2), F. Martin (3), G. Browne (4), J. Adaskaveg (1) (1) University of California, Riverside, U.S.A.; (2) California State University, Monterey Bay, U.S.A.; (3) USDA-ARS, U.S.A.; (4) University of California, Davis and View Abstract

Spatial dynamics of a begomovirus disease in processing tomato in central Brazil A. BERGAMIN FILHO (1), A. Bergamin Filho (1) (1) University of Sao Paulo, Brazil View Abstract

Transmission of Rhodococcus spp. causing pistachio bushy top syndrome in California E. FICHTNER (1), S. Dhaouadi (1), T. Kapaun (2), J. Cardwell (3) (1) University of California Division of Agriculture and Natural Resources, U.S.A.; (2) University of California Division of Agriculture and Natural Resources, U.S.A.; (3) Companion Animal C View Abstract

The occurrence pattern of plant viruses and their vectors in pepper fields in Korea S. KWON (1), S. Kwon (1), I. Cho (1), S. Choi (1), J. Yoon (1), G. Choi (1) (1) National Institute of Horticultural and Herbal Science, South Korea View Abstract

A Snapshot of Citrus Black Spot in Southwest Florida: Spatial Distribution in Two ‘Valencia’ Citrus Groves K. HENDRICKS (1), P. Roberts (1) (1) University of Florida - IFAS View Abstract

Specific TaqMan qPCR and a PvABC qPCR assays for monitoring airborne sporangia of Plasmopara viticola f. sp. riparia, aestivalis and vinifera. O. CARISSE (1), M. Tremblay (2), A. Lefebvre (3) (1) Agriculture and AgriFood Canada, Canada; (2) Agriculture and Agroalimentaire Canada, Canada; (3) Agriculture and AgriFood Canada, Canada View Abstract

Spatiotemporal analysis of wheat blast epidemiology (Magnaporthe oryzae Triticum pathotype) under natural field conditions K. MILLS (1), L. Madden (1), P. Paul (1), D. Salgado (1) (1) The Ohio State University, U.S.A. View Abstract

The seasonal dynamics of Phyllosticta spp. in Floridian citrus grove leaf litter K. ZHANG (1), J. Rollins (2), M. Dewdney (3) (1) Plant Pathology Department, Citrus Research and Education Center, University of Florida, U.S.A.; (2) Plant Pathology Department, University of Florida, U.S.A.; (3) Plant Pathology Department, Citrus Researc View Abstract

Quantification of airborne inoculums of Magnaporthe oryzae by using TaqMan Real-time PCR X. CHEN (1), K. Yuan (1), S. Wang (2), F. Guo (2), B. Wu (2) (1) China Agricultural University, China; (2) China Agricultural University, China View Abstract

Genetic diversity of pathogenic Clavibacter michiganensis subsp. michiganensis strains from Central Chile M. VALENZUELA (1), S. Fuentes (2), F. Claverias (2), X. Besoain (3), M. Seeger (4) (1) Centro de Biotecnología DAL, Universidad Tecnica Federico Santa Maria, Chile; (2) Centro de Biotecnología DAL, Universidad Técnica Federico Santa María, Chile; (3) Escu View Abstract

Sensitivity survey of Alternaria species to SDHI fungicides reveals regional and temporal resistance changes in pistachio orchards of California P. LICHTEMBERG (1), R. Puckett (1), C. Cunningham (2), V. Leschenne (3), T. Michailides (1) (1) University of California - Davis, U.S.A.; (2) Fresno State University, U.S.A.; (3) Swiss Federal Institute of Technology, Switzerland View Abstract

Epidemiology: Pathogen-Vector Interations

Transmission of a 16SrIII-L phytoplasma by leafhoppers (Scaphytopius marginelineatus) to cassava (Manihot esculenta Crantz) in Colombia E. ALVAREZ (1), C. BETANCOURTH (1) (1) CIAT, Colombia View Abstract

Transovarial and Sexual Transmission of Tomato yellow leaf curl virus in Whiteflies W. MARCHANT (1), R. Srinivasan (1) (1) University of Georgia, U.S.A. View Abstract

Turnip aphid preference for turnip plants infected with different strains of Cauliflower mosaic virus M. ADHAB (1), J. Schoelz (1), D. Finke (1); (1) University of Missouri - Columbia, MO, USA View Abstract

Aphid-mediated potyvirus transmission: host plant chemistry, vector biology and component interactions K. GADHAVE (1), B. Dutta (2), J. Schmidt (2), R. Srinivasan (2) (1) University of Georgia, U.S.A.; (2) University of Georgia, U.S.A.; (3) University of Georgia, U.S.A. View Abstract

The ability of Olpidium brassicae to vector blueberry mosaic virus in southern highbush blueberries T. MILES (1), A. Shands (1) (1) CSU Monterey Bay, U.S.A. View Abstract

Molecular interactions between citrus tristeza virus and its aphid vector, Toxoptera citricida N. KILLINY (1), S. Harper (2), C. C. El Mohtar (2), B. Dawson (2) (1) University of Florida, IFAS, CREC, Department of Plant Pathology, U.S.A.; (2) University of Florida, Department of Plant Pathology, U.S.A. View Abstract

Determination of vector population trends, species composition, and the role they play in the barley yellow dwarf complex in Northeastern Kansas. M. RAMOS (1), D. Rotenberg (1), A. Laney (1), A. Kieffaber (1), A. Whitfield (1) (1) Kansas State University, U.S.A. View Abstract

Olive Escudete, caused by Botryosphaeria dothidea, as Result of the Interaction fly-mosquito-fungus J. MORAL (1), I. Eldesouki-Arafat (2), F. López-Escudero (3), E. Vargas-Osuna (2), T. Antonio (4), H. Aldebis (2) (1) University of California, Davis, Kearney Agricultural Research and Extension Center, U.S.A.; (2) Dpto. Ciencias y Recursos Agrícolas y Fo View Abstract

Cladosporium interactions with the introduced insect spotted wing drosophila (Drosophila suzukii) may alter raspberry fruit rot epidemiology C. SWETT (1), C. Carignan (1), K. Hamby (1), E. Koivunen (1) (1) University of Maryland, U.S.A. View Abstract

First report of laurel wilt on sassafras in Arkansas R. OLATINWO (1), C. Barton (2), J. Hwang (3), W. Johnson (3) (1) USDA Forest Service, Southern Research Station, U.S.A.; (2) Arkansas Forestry Commision, U.S.A.; (3) USDA Forest Service, Forest Health Protection, U.S.A. View Abstract

Variation in transmission of Tomato spotted wilt virus (TSWV) from Thrips tabaci is not solely influenced by virus titer within individual thrips J. BROWN (1), A. Jacobson (2), G. Kennedy (1), S. Lommel (1), T. Sit (1) (1) North Carolina State University, U.S.A.; (2) Auburn University, U.S.A. View Abstract

Composition of leaf fibrous ring mediates Diaphorina citri preference of Citrus sinensis over Citrus aurantium. H. SHUGART (1), M. Rogers (1) (1) University of Florida- Citrus Research & Education Center, U.S.A. View Abstract

Epidemiology: Population Biology Genetics

Thirty-three years of lettuce downy mildew and counting: a phenotypic and genotypic narrative C. TSUCHIDA (1), F. Martin (2), R. Gil (1), O. Ochoa (3), I. Simon (3), R. Michelmore (3) (1) Department of Plant Pathology, University of California, Davis, U.S.A.; (2) USDA-ARS, Salinas, U.S.A.; (3) Genome Center, University of California, Davis, U.S.A. View Abstract

Population structure of Sclerotinia subarctica in England, Scotland and Norway J. CLARKSON (1), R. Warmington (2), B. Nordskog (3) (1) Warwick Crop Centre, University of Warwick, United Kingdom; (2) The Eden Project, United Kingdom; (3) Norwegian Institute of Bioeconomy Research, Norway View Abstract

Population structure of the wheat pathogen Zymoseptoria tritici in France at different scales A. SIAH (1), L. EL CHARTOUNI (2), B. TISSERANT (2), P. HALAMA (1), P. REIGNAULT (3) (1) Institut Charles Viollette (EA 7394), Institut Supérieur d’Agriculture, France; (2) Unité de Chimie Environnementale et Interactions sur le Vivant (EA 4492), Universit View Abstract

Tools for analysis of clonal population genetic data in R Z. KAMVAR (1), J. Brooks (2), N. Grünwald (3) (1) Oregon State University, U.S.A.; (2) Oregon State University, U.S.A.; (3) USDA-ARS, U.S.A. View Abstract

Short-term Host Selection Pressure Has Little Effect on the Evolution of Verticillium dahliae K. PURI (1), S. Gurung (1), D. Short (2), G. Sandoya (3), R. Hayes (4), K. Subbarao (1) (1) University of California, U.S.A.; (2) Division of Plant and Soil Sciences, West Virginia University, U.S.A.; (3) UC Davis Genome Center, U.S.A.; (4) United States View Abstract

The genetic structure, virulence, and fungicide sensitivity of Fusarium fujikuroi in Taiwan C. CHUNG (1), Y. Chen (2), M. Lai (3), C. Wu (2), A. Cheng (2), T. Lin (3), A. Cheng (4), C. Yang (2), H. Wu (5), S. Chu (6), C. Kuo (7), Y. Wu (4), G. Lin (4), M. Tseng (8), Y. Tsai (9), C. Lin (10), C. Chen (11), J. Huang (11), H. Lin (2) (1) National T View Abstract

Spatial and temporal structure of Sclerotinia sclerotiorum in New York State A. DUNN (1), J. Kikkert (2), S. Pethybridge (3) (1) Hobart and William Smith Colleges, U.S.A.; (2) Cornell Cooperative Extension, Cornell Vegetable Program, U.S.A.; (3) Cornell University, U.S.A. View Abstract

Population structure and genetic diversity of Fusicladium effusum in the USA C. BOCK (1), M. Hotchkiss (2), K. Stevenson (3), B. Wood (4) (1) USDA/ARS SE Fruit & Tree Nut Research Laboratory, 21 Dunbar Rd., U.S.A.; (2) USDA-ARS SE Fruit and Tree Nut Research Laboratory, U.S.A.; (3) Department of Plant Pathology, University of Geor View Abstract

Is host specificity influencing the population structure of Phytophthora spp. collected from potato and tree tomato in central and southern Colombia? C. Chaves (1), M. Mideros (1), G. Danies (1), S. Restrepo (1) (1) Universidad de los Andes, Colombia View Abstract

Genetic and phenotypic diversity of Puccinia kuehnii of sugarcane from Brazil T. MISTURA (1), A. Urashima (1), L. Porto (1), C. Sakuno (2), R. Arias (3) (1) Federal University of Sao Carlos, Brazil; (2) Syngenta Crop Protection, Brazil; (3) USDA, ARS, South Atlantic Area Nat Peanut Res Lab, U.S.A. View Abstract

A shift in the population of Phytophthora infestans on Egyptian potato crops. S. EL-GANAINY (1), Y. Ahmed (1), M. Soliman (1), A. Ismail (1), A. Tohamy (1), E. Randall (2), D. Cooke (2) (1) Plant Pathology Research Institute, Egypt; (2) The James Hutton Institute, Scotland View Abstract

Exploring genetic diversity in Macrophomina phaseolina, the causal agent of charcoal rot on soybean V. ORTIZ LONDONO (1), M. Chilvers (1), K. Wise (2) (1) Michigan State University, U.S.A.; (2) Purdue University, U.S.A. View Abstract

Population structure of Pseudoperonospora cubensis isolates in Michigan and Ontario, Canada J. BELLO (1), Y. Guo (1), M. Hausbeck (1) (1) Michigan State University, U.S.A. View Abstract

Stripe rust epidemics of wheat and barley and races of Puccinia striiformis identified in the United States in 2015 X. CHEN (1), A. Wan (2) (1) USDA-ARS, U.S.A.; (2) Department of Plant Pathologist, Washington State University, U.S.A. View Abstract

Molecular characterization and genetic diversity of Mycosphaerella fijiensis in Costa Rica using sequence based nuclear markers J. RISTAINO (1), A. Saville (1), M. Charles (1), M. Wyatt (1), S. Chavan (1) (1) North Carolina State University, U.S.A. View Abstract

Sub-lethal fungicides induce microsatellite mutation in Sclerotinia sclerotiorum B. Amaradasa (1), S. Everhart (1) (1) University of Nebraska, U.S.A. View Abstract

Diversity of Aspergillus flavus on important agricultural crops produced in Bangladesh M. ISLAM (1), P. Cotty (2) (1) USDA ARS, U.S.A.; (2) USDA-ARS, School of Plant Sciences, the University of Arizona, U.S.A. View Abstract

Preliminary screening of genetic markers for population analyses of Magnaporthe oryzae Triticum pathotype J. STACK (1), C. Cruz (1), S. Dobham (1) (1) Department of Plant Pathology, Kansas State University, Manhattan, KS, U.S.A. View Abstract

A strategy to study population variation of Xanthomonas axonopodis pv. manihotis using a new set of multiple-locus variable number tandem repeats. L. RACHE CARDENAL (1), C. Flores (2), C. López (3), B. Szurek (2), C. Vernièr (2), R. Koebnik (2), S. Restrepo (4), A. Bernal (4) (1) Universidad de los Andes, Colombia; (2) UMR Interactions Plantes Microorganismes Environnement, IRD-Cirad-UM, Montpellier View Abstract

Epidemiology: Risk Assessment

Potential global distribution of blueberry twig blight (Diaporthe vaccinii) predicted by two species distribution modeling approaches. A. VAN BRUGGEN (1), H. Narouei-Khandan (1), C. Harmon (1), P. Harmon (1), C. Gardi (2), I. Koufakis (2), W. van der Werf (3), J. West (4) (1) University of Florida, U.S.A.; (2) European Food Safety Authority, Italy; (3) Wageningen University, Netherlands; View Abstract

Seedborne inoculum thresholds of Pseudomonas syringae pv. aptata, causal agent of bacterial leaf spot, in ‘baby leaf’ Swiss chard crops L. DU TOIT (1), M. Derie (1), B. Holmes (1), I. Safni (2), C. Bull (2) (1) Washington State University, U.S.A.; (2) Pennsylvania State University, U.S.A. View Abstract

A model for predicting onset of Stagonospora nodorum blotch in winter wheat based on pre-planting and weather factors P. OJIAMBO (1), L. Mehra (1), C. Cowger (1) (1) North Carolina State University, U.S.A. View Abstract

Evaluating soybean production in fields infested with Heterodera glycines and Macrophomina phaseolina with spatial regression analyses H. LOPEZ-NICORA (1), J. Carr (1), A. Dorrance (2), T. Niblack (1) (1) The Ohio State University, U.S.A.; (2) The Ohio State University, U.S.A. View Abstract

Incidence and severity of Phytophthora disease and assessment of inoculum levels in Texas citrus orchards S. CHAUDHARY (1), M. Setamou (1), O. Alabi (3), J. daGraca (1), M. Kunta (1), V. Ancona (1) (1) Texas A&M Kingsville Citrus Center, U.S.A.; (2) Texas A&M Kingsville Citrus Center, U.S.A.; (3) Texas A&M AgriLife Research and Extension Center, U.S.A.; (4) T View Abstract

Evaluation of the microbial quality of cantaloupe fruit produced on raised or flat beds following a flooding event I. KIKWAY (1), M. Lewis Ivey (1), I. Kikway (1) (1) Louisiana State University, U.S.A. View Abstract

Effect of soybean canopy closure on Sclerotinia sclerotiorum apothecia production, ascospore release, and primary plant infection of soybean M. FALL (1), M. Chilvers (1), A. Byrne (1), J. Wilbur (2), D. Smith (2) (1) Michigan States University, U.S.A.; (2) University of Wisconsin-Madison, U.S.A. View Abstract

Modeling regulatory decisions in response to exotic pest detections: Pest case studies for decision makers L. BROWN (1), L. Brown (1) (1) APHIS Plant Protection & Quarantine, Science & Technology, U.S.A. View Abstract

Weather patterns associated with Gibberella Ear Rot of Corn in Ohio F. DALLA LANA (1), R. Minyo (1), P. Thimison (1), L. V. Madden (1), P. A. Paul (1) (1) The Ohio State University, U.S.A. View Abstract

Multilayer Networks Supporting Healthy Seed Systems for Smallholder Potato Producers in Tungurahua, Ecuador J. HERNANDEZ NOPSA (1), J. Andrade-Piedra (2), G. Forbes (3), P. Kromann (4), S. Lei (5), J. Brisbane (5), K. Garrett (5) (1) University of Florida, U.S.A.; (2) International Potato Center, CGIAR Research Program on Roots Tubers and Bananas (RTB), Peru; ( View Abstract

Symptomatology and epidemiology of Exobasidium leaf and fruit spot of blueberry R. INGRAM (1), H. Scherm (1), R. Allen (1) (1) University of Georgia, U.S.A. View Abstract

An impact network analysis for management of Xanthomonas wilt of banana: adoption thresholds for regional success of single diseased stem removal K. GARRETT (1), C. Ocimati (2), J. Ntamwira (3), G. Blomme (4) (1) University of Florida, U.S.A.; (2) Bioversity, Uganda; (3) Bioversity, DR Congo, DR Congo; (4) Bioversity, Ethiopia View Abstract

Epidemiology: Systematics/Evolution

Genetic diversity of Pseudomonas syringae causing bacterial leaf spot on table beet (Beta vulgaris) and Swiss chard (Beta vulgaris subsp. cicla) I. SAFNI (1), L. Ramos-Sepulveda (2), P. Goldman (3), M. Derie (4), L. du Toit (4), S. Koike (5), V. Stockwell (6), C. Bull (2) (1) 1Department of Agroecotechnology, Faculty of Agriculture, University of Sumatera Utara, Indonesia; (2) Department of Plant View Abstract

Diversity and phylogeny of moko disease-causing Ralstonia solanacearum strains in Colombia M. RAMIREZ (1), R. Jackson (2), V. Villegas-Escobar (3), J. Correa-Álvarez (3), C. Ramirez (1) (1) Universidad de Antioquia, Colombia; (2) Reading University, England; (3) Universidad Eafit, Colombia View Abstract

Phylogenomic analysis supports polyphyly in Pythium sensu lato E. GOSS (1), M. Ascunce (2), J. Huguet-Tapia (2), E. Braun (2), A. Ortiz-Urquiza (2), N. Keyhani (2) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A. View Abstract

Fieldside Manner: Serving Plant Pathology's Stakeholders

Tapping into growers' expertise: Effective engagement in extension. LINDSEY DU TOIT, Washington State University, Mount Vernon, WA, U.S.A. View Abstract | View Presentation

Have I told you about the time...: Communicating "Plant Pathology" to diverse audiences in academia. J. BRADEEN (1), D. VanBoxtel (2) (1) University of Minnesota, U.S.A.; (2) University of Minnesota, U.S.A. View Abstract | View Presentation

The business of working with stakeholders. W. Dolezal (1) (1) DuPont Pioneer, U.S.A. View Abstract | View Presentation

Pulling no punches: Admitting you don't know, and still giving actionable answers. WALT MAHAFFEE, USDA ARS, Corvallis, OR, U.S.A. View Abstract | View Presentation

Think local, act globally: Meeting stakeholders' needs in developing countries. A. TESTEN (1), S. Miller (1) (1) The Ohio State University, U.S.A. View Abstract | View Presentation

Fungal Diseases

Identifying sources of inoculum and timing of tissue infection by fungal pathogens associated with winterberry fruit rot F. PEDUTO HAND (1), S. Lin (1), N. Taylor (1) (1) The Ohio State University, U.S.A. View Abstract

Occurrence of foliar diseases of watermelon on commercial farms in South Carolina in 2015 G. RENNBERGER (1), A. Keinath (1), P. Gerard (2) (1) Coastal Research and Education Center, Clemson University, U.S.A.; (2) Department of Mathematical Sciences, Clemson University, U.S.A. View Abstract | View Presentation

Worldwide distribution of the sweet potato strains of Ceratocystis fimbriata Q. LI (1), T. Harrington (2), J. Li (3) (1) China Agricultural University/Postdoctoral Fellows Workstation of Haidian Science Park, China; (2) Iowa State University, U.S.A.; (3) China Agricultural University, China View Abstract | View Presentation

Fungi associated with cankers and wounds of cultivated and wild olives in the Western Cape, South Africa C. SPIES (1), W. van Jaarsveld (2), P. Moyo (3), L. Mostert (2), F. Halleen (4) (1) ARC Infruitec-Nietvoorbij, South Africa; (2) Stellenbosch University, South Africa; (3) Stellenbosch University, South Africa; (4) ARC Infruite-Nietvoorbij, South Africa View Abstract | View Presentation

Improving genomic resources for the detection of Macrophomina phaseolina infection of strawberry A. BURKHARDT (1), K. Childs (2), M. Ramon (1), F. Martin (1) (1) USDA, U.S.A.; (2) Michigan State University, U.S.A. View Abstract | View Presentation

Fungal Genomics

Genetic basis for pathogenicity in Fusarium oxysporum f.sp. cepae causing basal rot in onion J. CLARKSON (1), A. Taylor (1), A. Jackson (1), A. Armitage (3), R. Harrison (3) (1) Warwick Crop Centre, University of Warwick, United Kingdom; (2) Warwick Crop Centre, University of Warwick, United Kingdom; (3) East Malling Research, United Kingdom View Abstract | View Presentation

Enhancing our understanding of Fusarium maize stalk rot pathogenesis through gene association subnetwork module analyses H. ZHANG (1), H. Zhang (2), M. Kim (2), H. Yan (2), B. Yoon (2), W. Shim (2) (1) Texas A&M university, U.S.A.; (2) Texas A&M university, U.S.A. View Abstract

Elucidating the genetic basis of race differentiation in Cercospora sojina through genotype-by-sequencing approaches S. SHARMA (1), B. Dhillon (1), A. Fakhoury (2), B. Bluhm (1) (1) University of Arkansas, U.S.A.; (2) Southern Illinois University, U.S.A. View Abstract | View Presentation

RNA-Seq analysis of stuA mutants in Fusarium verticillioides indicates dramatic genomic wide transcriptional reprogramming M. Rath (1), N. Crenshaw (2), S. Gold (2) (1) University of Georgia & USDA, U.S.A.; (2) USDA, U.S.A. View Abstract | View Presentation

Quantitative pyrosequencing for rapid detection and quantification of Aspergillus flavus atoxigenic active ingredients in complex fungal communities K. SHENGE (1), B. Adhikari (1), K. Callicott (1), R. Bandyopadhyay (2), P. Cotty (3) (1) USDA-ARS, U.S.A.; (2) International Institute of Tropical Agriculture (IITA), Nigeria; (3) USDA-ARS, U.S.A. View Abstract | View Presentation

Fungal Pathogenicity

Magnaporthe oryzae zinc finger effector1 exploits rice HIRA/AS1/AS2 complex to alter plant development and increase disease susceptibility Y. Chen (1), W. Liu (2), Q. Wang (3), Y. Yang (2) (1) Penn State Univeristy, U.S.A.; (2) Penn State Univeristy, U.S.A.; (3) Penn State Univerisy, U.S.A. View Abstract

Comparative Genomics of Two Magnaporthe oryzae Field Isolates Uncovers Novel Candidate Effector Genes J. HUANG (1), J. Huang (1), Y. Hong (1), L. Xu (1), M. Chen (1), Z. Zhong (1), X. Chen (1), H. Zheng (1), J. Bao (1), Z. Wang (1) (1) Fujian-Taiwan Joint Center for Ecological Control of Crop Pests, Fujian Agriculture and Forestry University, Fuzhou, Chin View Abstract

Genetics behind avirulence: identification of novel avr-genes in Magnaporthe oryzae D. TATE (1), J. Hu (1), V. Ganeshan (1), T. Mitchell (1) (1) The Ohio State University, U.S.A. View Abstract

Molecular dissection of a complex gene locus conferring high virulence on barley cv. Bowman in the fungal cereal pathogen Cochliobolus sativus S. ZHONG (1), Y. Leng (1) (1) North Dakota State University, U.S.A. View Abstract | View Presentation

A forward genetic screen in Phomopsis longicolla provides unique insights into pathogenesis M. ZACCARON (1), S. Sharma (2), W. Fagundes (2), W. Hawkins (2), N. Lawson (2), J. Ridenour (2), J. Smith (2), B. Dhillon (2), J. Rupe (2), B. Bluhm (2) (1) University of Arkansas, U.S.A.; (2) University of Arkansas, U.S.A. View Abstract | View Presentation

Fungicide Resistance

Assessing potential virulence differences between QoI-sensitive and -resistant Cercospora sojina isolates from Mississippi soybean N. BROCHARD (1), M. Tomaso-Peterson (2), T. Allen (3), R. Melanson (3) (1) Mississippi State University, U.S.A.; (2) Mississippi State Unversity, U.S.A.; (3) Mississippi State Unversity, U.S.A. View Abstract | View Presentation

Fungicide resistance profiles of unique and clonal genotypes of gummy stem blight fungi from the southeastern United States H. LI (1), K. Stevenson (2), M. Brewer (1) (1) University of Georgia, U.S.A.; (2) University of Georgia, U.S.A. View Abstract | View Presentation

Fitness and competition studies of QoI resistant and sensitive Cercospora sojina isolates, the causal agent of frogeye leaf spot B. LIN (1), H. Kelly (1), H. Yu (2), A. Mengistu (3) (1) University of Tennessee-Entomology & Plant Pathology, U.S.A.; (2) University of Tennessee-Entomology & Plant Pathology, U.S.A.; (3) United States Department of Agriculture, Agricultural Research Ser View Abstract

Survey for Quinone Outside Inhibitor Resistant Cercospora sojina in Virginia Soybeans T. ZHOU (1) H. Mehl (1); (1) Virginia Tech Tidewater AREC, U.S.A. View Abstract

ADEPIDYNTM fungicide: Cross resistance patterns in Alternaria solani. G. OLAYA (1), R. Linley (2), K. Edlebeck (2), T. Harp (3) (1) Syngenta, U.S.A.; (2) Syngenta, U.S.A.; (3) Syngenta, U.S.A. View Abstract

Host Plant Resistance

Characterization of Arabidopsis Defense-related Gene Homologues in Tomato and Strawberry J. PEREIRA (1), K. Silva (2), M. Garald (3), J. Jeffrey (3), Z. Mou (3) (1) University of Florida, U.S.A.; (2) Salve Regina University, U.S.A.; (3) University of Florida, U.S.A. View Abstract | View Presentation

Speeding up the discovery of novel sources of leaf rust resistance in wheat A. RIAZ (1), N. Athiyannan (2), S. Periyannan (3), O. Afanasenko (4), O. Mitrofanova (5), E. Aitken (6), E. Lagudah (3), L. Hickey (2) (1) The University of Queensland, Queensland Alliance for Agriculture and Food Innovation, St Lucia, QLD 4072, Australia View Abstract

Development of molecular markers tightly linked to Potato virus Y resistance gene Rychc in a diploid potato population A. FULLADOLSA (1), S. Jansky (2), D. Halterman (3), A. Charkowski (1) (1) University of Wisconsin-Madison, U.S.A.; (2) USDA-ARS, University of Wisconsin-Madison, U.S.A.; (3) USDA-ARS, U.S.A. View Abstract | View Presentation

Utilizing mapping-by-sequencing to identify the Dominant Net Form Net Blotch Resistance Gene from Barley Line CI 5791 P. TAMANG (1), R. Brueggeman (1), J. Richards (1), T. Friesen (2) (1) North Dakota State University, U.S.A.; (2) Cereal Crops Research, USDA, U.S.A. View Abstract

Mapping of two QTL conferring adult plant resistance to Puccinia graminis f. sp. tritici race TTKSK (Ug99) and evidence for race specificity J. BRIGGS (1), M. Rouse (2), S. Bhavani (3), C. Hiebert (4) (1) University of Minnesota, U.S.A.; (2) USDA-ARS, U.S.A.; (3) CIMMYT, Kenya; (4) Agriculture and Agri-Food Canada, Canada View Abstract

Initial epidemic conditions and long-distance spread of disease.

Dispersal at Multiple Scales: A Key to Outbreak of Disease Epidemics C. Mundt (1); (1) Oregon State University, OR, USA View Abstract

Isothermal Pathogen Detection

LAMP lights the way: early detection of airborne inoculum of Magnaporthe oryzae in turfgrass fields F. PEDUTO HAND (1), F. Peduto Hand (1), C. Villari (1), W. Mahaffee (2), T. Mitchell (1) (1) The Ohio State University, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract | View Presentation

Development of a rapid AmplifyRP Acceler8 test for grapevine red blotch-associated virus in grapevines R. LI (1), M. Fuchs (2), K. Perry (3), T. Mekuria (4), S. Zhang (1) (1) Agdia Inc., U.S.A.; (2) Cornell University, U.S.A.; (3) Cornell University, U.S.A.; (4) Vintage Nurseries, U.S.A.; (5) Agdia Inc., U.S.A. View Abstract

An Integrated Microfluidic Device for Rapid Plum Pox Virus Enrichment and Detection S. ZHENG (1), Y. Yeh (1), V. Mavrodieva (2), W. Zhang (1), Z. Liu (2) (1) The Pennsylvania State University, U.S.A.; (2) USDA, APHIS, PPQ, CPHST-Beltsville Laboratory, U.S.A. View Abstract

Rapid LAMP diagnostics for detection and disease alerts of Phytophthora infestans J. RISTAINO (1), A. Saville (1), R. Guenter (1), C. Lagaly (1), D. Cooper (2) (1) North Carolina State University, U.S.A.; (2) Mobile Assay, U.S.A. View Abstract

Detection of the select agent Rathayibacter toxicus using recombinase polymerase amplification coupled with a lateral flow device M. ARIF (1), G. Busot (2), R. Mann (3), B. Rodoni (4), J. Stack (5) (1) Department of Plant Pathology, Kansas State University, U.S.A.; (2) Department of Plant Pathology, Kansas State University, Australia; (3) Department of Economic Development, Jobs, Tr View Abstract

Latest in Fungicides

Trivapro™ fungicide, a new fungicide for broad spectrum control of diseases of corn, soybeans, and wheat. E. TEDFORD (1), E. Tedford (1), A. Tally (1) (1) Syngenta, U.S.A. View Abstract | View Presentation

Evaluation of new fungicides for management of Phytophthora root rot of citrus W. Hao (1), M. Gray (1), H. Förster (1), J. Adaskaveg (1) (1) University of California, Riverside, U.S.A. View Abstract

Pimaricin: A new post-harvest fungicide for selected citrus, stone, and pome fruits D. Chen (1), H. Förster (1), J. Adaskaveg (1) (1) Department of Plant Pathology and Microbiology, University of California, Riverside, U.S.A. View Abstract

Evaluation of fungicides for management of Fusarium wilt of watermelon N. MILLER (1), M. Adams (1), L. Quesada-Ocampo (1) (1) North Carolina State University, U.S.A. View Abstract | View Presentation

Liberibacter

Proposed model for Candidatus Liberibacter asiaticus and solanacearum systemic invasion and multiplication in the psyllid host and vector J. BROWN (1), T. Rast (1), J. Cicero (2), T. Fisher (1) (1) The University of Arizona, U.S.A.; (2) University of Florida, U.S.A. View Abstract

Engineering mobile RNA in Carrizo to enhance plant defense responses to control citrus greening S. Zhang (1), G. Perazzo (1), D. Gabriel (1) (1) Integrated Plant Genetics, U.S.A. View Abstract | View Presentation

Systemic infection of split root trees by Candidatus Liberibacter asiaticus suggests rapid movement between phloem sieve tubes J. ORROCK (1), J. Orrock (1), E. Johnson (1) (1) Citrus Research and Education Center, University of Florida, U.S.A. View Abstract | View Presentation

Developing resistance to citrus huanglongbing. C. RAMADUGU (1), M. Keremane (2), T. McCollum (3), D. Hall (3), M. Roose (1) (1) University of California Riverside, U.S.A.; (2) USDA ARS National Clonal Germplasm Repository for Citrus and Dates, U.S.A.; (3) US Horticultural Research Laboratory, U.S.A. View Abstract | View Presentation

Metagenomics and the Phytobiome

Genetic determinants of bacterial adaptation to plants A. LEVY (1), A. Levy (1) (1) DOE Joint Genome Institute, U.S.A. View Abstract | View Presentation

Unravelling the sugarcane microbiome to resolve the Yellow Canopy Syndrome in Australia K. HAMONTS (1), P. Trivedi (2), A. Garg (2), P. Holford (3), J. Grinyer (2), I. Anderson (2), B. Singh (2) (1) Hawkesbury Institute for the Environment, Australia; (2) Hawkesbury Institute for the Environment, Western Sydney University, Australia; (3) Sch View Abstract

Metabarcoding the soybean seed core mycobiome R. PEDROZO (1), A. Jumpponen (1), C. Little (1) (1) Kansas State University, U.S.A. View Abstract | View Presentation

Soil microbiomes associated with alternative strategies to manage Verticillium dahliae P. INDERBITZIN (1), J. Ward (2), A. Barbella (2), N. Solares (2), B. Calderon (2), D. Chellemi (2), K. Subbarao (1) (1) UC Davis, U.S.A.; (2) Driscoll’s Strawberry Associates, U.S.A. View Abstract | View Presentation

Root and rhizosphere microbiome responses to new tomato rootstock systems R. POUDEL (1), L. Meyer (2), A. Jumpponen (3), M. Kennelly (4), C. Rivard (2), B. Cordova (5), J. Brisbane (5), K. Garrett (5) (1) Plant Pathology Department, Institute for Sustainable Food Systems, and Emerging Pathogens Institute, U.S.A.; (2) Horticultu View Abstract

Molecular & Cellular Plant-Microbe Interactions: Biochemistry & Cell Biology

Wheat streak mosaic virus-encoded NIa-Pro and coat protein are involved in virus superinfection exclusion S. TATINENI (1) (1) USDA-ARS, U.S.A. View Abstract

Differential effects of Fusarium thapsinum on host nitric oxide (NO) synthesis among stalk rot resistant and susceptible sorghum lines A. BANDARA (1), C. Little (1) (1) Kansas State University, U.S.A. View Abstract

Stalk sugar content and charcoal rot disease reaction in grain sorghum A. BANDARA (1), D. Weerasooriya (1), S. Liu (1), C. Little (1) (1) Kansas State University, U.S.A. View Abstract

Investigation on the role of molecular composition and lignification of canola plant cell wall in resistance mechanisms associated with CR gene Rcr1 R. LAHLALI (1), T. Song (2), M. Chu (2), F. Yu (3), L. McGregor (2), B. Gossen (2), S. Kumar (2), C. Karunakaran (1), G. Peng (2) (1) Canadian Light Source Inc., Canada; (2) Agriculture and Agri-Food Canada, Canada; (3) Agriculture and Agri-Food Canada, C View Abstract

Examining putative motility genes in Clavibacter michiganensis subsp. michiganensis. C. PERITORE (1), M. Tancos (2), C. Smart (2) (1) Cornell University, U.S.A.; (2) Cornell University, U.S.A. View Abstract

Role of Cryphonectria parasitica Cdc48-like gene, CpCdc48 in regulation of growth & cell division. D. KIM (1) (1) Chonbuk National University, South Korea View Abstract

Small RNA processing in Sclerotinia sclerotiorum S. MARZANO (1), L. Domier (2) (1) South Dakota State University, U.S.A.; (2) USDA/ARS, University of Illinois, Urbana-Champaign, U.S.A. View Abstract

Identification of essential protein machinery involved in the plant disease resistance-signaling node in Arabidopsis, NDR1. A. CORRION (1), B. Day (2), (1) Michigan State University, East Lansing, MI, U.S.A.; (2) Michigan State University, U.S.A. View Abstract

Spectral signatures of chemical changes in the wheat cell-wall resulting from stripe rust infection in compatible and incompatible near isogenic lines R. LAHLALI (1), G. Brar (2), D. Qutob (3), C. Karunakaran (1), H. Kutcher (2) (1) Canadian Light Source Inc., Canada; (2) Department of Plant Sciences/Crop Development Centre, University of Saskatchewan, Canada; (3) Canadian National Research Council- Pla View Abstract

In planta interaction between Tobacco mosaic virus 126 kDa protein and a host membrane protein (SNARE) and its influence on virus RNA accumulation R. NELSON (1), A. Ibrahim (1), J. Schoelz (2) (1) Samuel Roberts Noble Foundation, Inc., U.S.A.; (2) University of Missouri, U.S.A. View Abstract

A sensitive method for quantifying cercosporin, a fungal-derived secondary metabolite, in plant tissue J. SMITH (1), J. Lay (2), B. Bluhm (2) (1) University of Arkansas, U.S.A.; (2) University of Arkansas, U.S.A. View Abstract

Molecular & Cellular Plant-Microbe Interactions: Biotechnology

Overexpression of a modified plant thionin enhances disease resistance to citrus canker and Huanglongbing (HLB, citrus greening) G. HAO (1), E. stover (1) (1) usda/ars/hrl, U.S.A. View Abstract

Transgenic Carrizo expressing ‘Candidatus Liberibacter asiaticus’ effector P235 displays Huanglongbing-like symptom and alters some gene expression G. HAO (1) (1) usda/ars/hrl, U.S.A. View Abstract

Bioluminescent imaging as a sensitive tool for evaluation of Ralstonia solanacearum infection dynamics in resistant and susceptible pepper lines H. Du (1), B. Chen (1), X. Zhang (1), S. Miller (2), G. Rajashekara (3), X. Xu (1), S. Geng (1) (1) Beijing Vegetable Research Center (BVRC) of BAAFS, China; (2) Department of Plant Pathology, Ohio Agricultural Research Development Center, Ohio State Univ View Abstract

Co-expression of proteins by two virus vectors in the same cells of infected plants M. Mendoza (1), H. Scholthof (1) (1) Texas A&M University, U.S.A. View Abstract

Transgenic approaches for the genetic improvement of cowpea (Vigna unguiculata(L.)Walp) and soybean (Glycine max(L.) Merrill) V. RAMACHANDRAN (1) (1) BHARAT UNIVERSITY, India View Abstract

Displaying foreign proteins and peptides on the surface of Pepino mosaic virus virions C. LI (1), S. Shi (1), N. Yu (1), Z. Xiong (1) (1) University of Arizona, U.S.A. View Abstract

A single nucleotide polymorphism at the right terminal region of Mexican papita viroid is a virulent determinant factor on tomato K. LING (1), R. Li (1) (1) USDA-ARS, U.S. Vegetable Laboratory, U.S.A. View Abstract

Molecular & Cellular Plant-Microbe Interactions: MPMI

Resistance of cultivated soybean to Clover yellow vein virus apparently originated during domestication from wild soybean K. NAKAHARA (1), J. Abe (1), T. Yamada, (1) Y. Wang, (2), M. Hajimorad (2); Hokkaido University, Japan, (2) University of Tennessee, Knoxville, TN, USA View Abstract

Exchange of HC-Pro cistron between Soybean mosaic virus and Clover yellow vein virus: Impact on pathogenicity M.R. HAJIMORAD (1), Y. Wang (1,2), J. Abe (3), K. Nakahara (3); (1) University of Tennessee, Knoxville, TN, USA, (2) Jilin Academy of Agricultural Sciences, Jilin, China, (3) Hokkaido University, Japan View Abstract

Macrophomina phaseolina promotes charcoal rot susceptibility in sorghum through induced host nitric oxide (NO) production A. BANDARA (1), D. Weerasooriya (1), S. Liu (1), C. Little (1) (1) Kansas State University, U.S.A. View Abstract

Induced rhamnose biosynthesis in sorghum by Macrophomina phaseolina contributes to charcoal rot susceptibility A. BANDARA (1), D. Weerasooriya (1), S. Liu (1), C. Little (1) (1) Kansas State University, U.S.A. View Abstract

In vivo and in vitro investigation of the mobilization of pathogenicity islands of Streptomyces Y. ZHANG (1), D. Bignell (2), R. Zuo (3), Q. Fan (4), J. Huguet-Tapia (1), Y. Ding (3), R. Loria (1) (1) Department of Plant Pathology, University of Florida, U.S.A.; (2) Department of Biology, Memorial University of Newfoundland, Canada; (3) Department o View Abstract

Examination of the mechanism of superinfection exclusion by Citrus tristeza virus S. FOLIMONOVA (1), O. Atallah (1), S. Kang (2) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A. View Abstract

Devising a custom 13K unigene-based Nicotiana benthamiana microarray to study host-pathogen interactions at the transcriptome level P. THAMMARAT (1), P. Thammarat (1), T. Sit (2), S. Lommel (2) (1) Functional Genomics Program, North Carolina State University, U.S.A.; (2) Department of Entomology and Plant Pathology, North Carolina State University, U.S.A. View Abstract

Aspartyl protease mediated cleavage of AtBAG6 triggers autophagy and fungal resistance in plants Y. LI (1), M. Kabbage (2), M. Dickman (1) (1) Texas A&M University, U.S.A.; (2) University of Wisconsin-Madison, U.S.A. View Abstract

Expression of the FST1 from Fusarium verticillioides in a yeast strain lacking a major myo-inositol transporter gene C. NIU (1), G. Payne (2), C. Woloshuk (3) (1) Purdue University, U.S.A.; (2) North Carolina State University, U.S.A.; (3) Purdue University, U.S.A. View Abstract

Arabidopsis thaliana: A model host plant to study plant-pathogen interaction using rice false smut isolates of Ustilaginoidea virens J. LI (1), M. Andargie (2) (1) South China Botanical Garden, Chinese Academy of Sciences, China; (2) South China Botanical Garden, Chinese Academy of Scicnecs, China View Abstract

Functional analysis of root-knot nematode (Meloidogyne javanica) virulence genes in rice. D. FERNANDEZ (1), D. Fernandez (2), M. Grossi de Sá (3), I. Mezzalira (4), M. Beneventi (4), M. Lisei de Sá (5), D. Amora (4), H. Baimey (6), A. Petitot (7), J. de Almeida Engler (8), É. Saliba Albuquerque (4), M. Grossi de Sá (4) (1) IRD - French Researc View Abstract

Macrophomina phaseolina induces stalk senescence in charcoal rot susceptible sorghum genotypes through up-regulated host chlorophyllase-2 biosynthesis A. BANDARA (1), D. Weerasooriya (1), S. Liu (1), C. Little (1) (1) Kansas State University, U.S.A. View Abstract

Expression of FLS2s from ‘Nagami’ kumquat and ‘Sun Chu Sha’ mandarin enhance citrus canker resistance in ‘Duncan’ grapefruit V. FEBRES (1), Q. Shi (1), G. Moore (1) (1) University of Florida, U.S.A. View Abstract

Genotype and chemotype profiles of endophytes associated with wild barley M. YI (1), J. Kaste (2), N. Charlton (1), W. Hendricks (1), N. Krom (1), P. Nagabhyru (3), D. Panaccione (4), C. Young (1) (1) The Samuel Roberts Noble Foundation, U.S.A.; (2) Cornell University, U.S.A.; (3) University of Kentucky, U.S.A.; (4) West Virgin View Abstract

Fungal transcriptome analysis of the Sclerotinia sclerotiorum and Pisum sativum interaction M. CHILVERS (1), J. Rojas (1), P. Santos (2), J. Wang (1) (1) Michigan State University, U.S.A.; (2) University of Nevada, U.S.A. View Abstract

The Type II-dependent secretion of virulence factors is necessary for systemic colonization by the xylem-limited pathogen, Xylella fastidiosa B. INGEL (1), P. Wang (2) (1) University of California Riverside, U.S.A.; (2) University of California Riverside, U.S.A. View Abstract

Evaluation of Rice Varieties for Resistance for Autumn Decline in Arkansas H. Yan (1), H. Zhang (2), M. Kim (3), B. Yoon (4), W. Shim (4) (1) Texas A&M University, Plant Pathology & Microbiology, Texas A&M University, College Station, TX, 77843, U.S.A.; (2) Texas A&M University, Plant Pathology & Microbiology, Texas A&M Universi View Abstract

Determining the genetic basis for stomatal aperture modulation by Salmonella enterica serovar Typhimurium strain 14028. J. MONTANO (1), S. Porwollik (2), M. McClelland (2), M. Melotto (1) (1) Department of Plant Sciences, University of California, Davis, U.S.A.; (2) Department of Microbiology and Molecular Genetics, University of California, Irvine, U.S.A. View Abstract

The MAP kinase kinase kinase gene, CpBck1, regulates sectorization and pathogenicity of the phytopathogenic fungus Cryphonectria parasitica. D. KIM (1) (1) Chonbuk National University, Korea View Abstract

Homologs of CsLOB1 can function as disease susceptibility genes in citrus canker J. ZHANG (1), J. Tapia (1), Y. Hu (2), J. Jones (1), N. Wang (1), S. Liu (3), W. Frank (1) (1) University of Florida, U.S.A.; (2) Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, P. R. China, U.S.A.; (3) Kansas State View Abstract

Global Analysis of Horizontal Gene Transfer in Fusarium verticillioides S. GAO (1), J. Wisecaver (2), Y. Zhang (3), L. Ma (3), A. Rokas (2), S. Gold (4), A. Glenn (4) (1) Department of Plant Pathology, University of Georgia, U.S.A.; (2) Department of Biological Sciences, Vanderbilt University, U.S.A.; (3) Department of Bioche View Abstract

Molecular dissection of resistance signaling in watermelon fruit through transcriptomic approach M. MANDAL (1), J. Ikerd (2), A. Soorni (3), C. Kousik (2) (1) ORISE Participant sponsored by the U.S. Vegetable Laboratory, USDA, ARS., U.S.A.; (2) U.S. department of Agriculture, Agricultural Research Service, U.S. Vegetable Laboratory, U.S.A.; (3) Depar View Abstract

Ca. Liberibacter asiaticus carries a highly conserved, chromosomal CI repressor that binds an early gene promoter in its prophage. L. FLEITES (1), M. Jain (1), S. Zhang (1), D. Gabriel (1) (1) University of Florida, Gainesville, FL, U.S.A. View Abstract

The bifunctional catalase/peroxidase KatG is required for pathogenicity of Xanthomonas albilineans on sugarcane M. JAIN (1), L. Fleites (2), S. Zhang (2), D. Gabriel (2) (1) Department of Plant Pathology, University of Florida, U.S.A.; (2) Department of Plant Pathology, University of Florida, U.S.A. View Abstract

Two eIF4E proteins in Yellow Lantern chili pepper interact with Pepper veinal mottle virus VPg Z. ZHANG (1), N. Yu (1), X. Zhang (2), Y. Zhang (1), J. Wang (1), Z. Liu (3), Z. Xiong (4) (1) Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, China; (2) Institute of Institute of Tropical Bioscience View Abstract

The chemotaxis regulator pilG of Xylella fastidiosa is required for virulence in Vitis vinifera grapevines H. LIN (1), X. Shi (2) (1) USDA-ARS, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

The role of the tomato genotype in susceptibility to Salmonella enterica M. TEPLITSKI (1), M. Teplitski (1), M. Marvasi (2), J. Giovannoni (3) (1) University of Florida, U.S.A.; (2) Middlesex University, United Kingdom; (3) Boyce Thompson Institute, Cornell University, U.S.A. View Abstract

Two complete genome sequences of a new pathovar of Xanthomonas oryzae infecting wild grasses provide insight into evolution of pathogenicity J. LANG (1), R. Koebnik (2), A. Pérez-Quintero (2), E. DuCharme (1), B. Szurek (2), J. Leach (1), V. Verdier (2) (1) Colorado State University, U.S.A.; (2) Institut de recherche pour le développement (IRD), France View Abstract

Characterization of the T6SS secretion system of Ralstonia solanacearum and its role in virulence at low temperatures A. BOCSANCZY (1), J. Yuen (1), A. Mangravita-Novo (1), D. Norman (1) (1) University of Florida MREC, U.S.A. View Abstract

Reimagining the Cauliflower mosaic virus genome as an interactome between host and virus proteins J. SCHOELZ (1), R. Nelson (2), S. Leisner (3), C. Angel (4) (1) University of Missouri, U.S.A.; (2) The Samuel Roberts Noble Foundation, U.S.A.; (3) University of Toledo, U.S.A.; (4) Cenicafe, Colombia View Abstract

Phytopathogenic interaction between Herbaspirillum rubrisubalbicas and different genotypes of Sorghum T. TULESKI (1), T. Tuleski (1), C. Espinoza (2), F. Plucani do Amaral (2), T. Pereira (2), R. Monteiro (4), E. Maltempi de Souza (4), F. Pedrosa (4), G. Stacey (2) (1) University of Missouri, U.S.A.; (2) University of Missouri, U.S.A.; (3) University of M View Abstract

A Battle in a Kernel: Molecular Exploration of Antagonisms between Two Maize Endophytes, Fusarium verticillioides and Acremonium zeae M. GAO (1), A. Glenn (2), S. Gold (2) (1) The University of Georgia, U.S.A.; (2) United States Department of Agriculture Toxicology and Mycotoxin Research Unit, U.S.A. View Abstract

A dynamic regulatory network model underlying stomatal infection in Cercospora zeae-maydis J. RIDENOUR (1), B. Bluhm (1) (1) University of Arkansas, U.S.A. View Abstract

Global regulatory changes allow for the increased growth of Salmonella in soft rotted tomatoes A. GEORGE (1), A. George (2) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A. View Abstract

Exploring the Monilinia vaccinii-corymbosi-blueberry pathosystem for the discovery of genes governing host-specificity. K. BANSAL (1), J. Rollins (1) (1) University of Florida, U.S.A. View Abstract

Identification of silencing suppressor proteins in Maize chlorotic mottle virus N. BACHELLER (1), H. Garcia-Ruiz (1) (1) University of Nebraska-Lincoln, U.S.A. View Abstract

Genome-wide study on cultivar-specific and stripe rust responsive miRNAs in Triticum aestivum S. RAMACHANDRAN (1), N. Mueth (1), P. Zheng (1), S. Hulbert (1) (1) Washington State University, U.S.A.; (2) Washington State University, U.S.A. View Abstract

A band of misfits: role of unexpected proteins in the plant symbiotic signaling pathway M. Venkateshwaran (1), A. Wiley-Kalil (2), D. Jayaraman (3), M. Banba (4), A. Binder (5), S. Bernard (6), J. Maeda (6), M. Otegui (7), H. Imaizumi-Anraku (8), M. Parniske (5), J. Ané (9) (1) University of Wisconsin-Platteville, U.S.A.; (2) NDSU Williston View Abstract

Secretome annotation in the citrus greening bacterial pathogen L. Cano (1), M. Pitino (2), Y. Duan (2) (1) University of Florida, U.S.A.; (2) US Horticultural Research Laboratory, U.S.A. View Abstract

Biological functional Analysis of tatB in Acidovorax citrulli T. ZHAO (1) (1) Chinese academy of agricultrual sciences, institute of plant protection, China View Abstract

MetacodeR: An R package for comparative analysis and visualization of microbial communities and evaluation of metabarcoding primer specificity Z. FOSTER (1), N. Grunwald (1) (1) USDA Agricultural Research Service / Oregon State University, U.S.A. View Abstract

Molecular & Cellular Plant-Microbe Interactions: Plant Defense Responses

Wheat streak mosaic virus P1: Defining the minimal region required for the suppression of RNA silencing. A. KASAMSETTY (1), G. Hein (2), S. Tatineni (1) (1) USDA-ARS and University of Nebraska-Lincoln, U.S.A.; (2) University of Nebraska-Lincoln, U.S.A. View Abstract

Transcriptome analysis of resistance against Phytophthora cinnamomi and the role of β-cinnamomin elicitins in pathogenicity M. ISLAM (1), H. Hussain (1), J. Rookes (2), A. Chambery (3), A. Schallmey (4), W. Oßwald (5), D. Cahill (2) (1) Deakin University, Australia; (2) Deakin University, Australia; (3) Università degli Studi di Napoli, Italy; (4) RWTH Aachen University, Germa View Abstract

The Role of Ethylene in PAMP-Triggered Immunity in Fusarium Crown Rot (FCR) Disease Resistance in Wheat S. ALLEN (1), X. Xiao (1), K. Bhide (1), S. Scofield (2) (1) Purdue University, U.S.A.; (2) USDA-ARS, Purdue University, U.S.A. View Abstract

Use of synchrotron Fourier transform spectroscopy to shed light on the chemical composition of cell wall appositions papillae on winter wheat leaf R. LAHLALI (1), T. Song (2), C. Karunakaran (1), G. Peng (2), Y. Wei (3) (1) Canadian Light Source Inc., Canada; (2) Agriculture and Agri-Food Canada, Canada; (3) Department of Biology, University of Saskatchewan, Canada View Abstract

Agroinfiltration-based screening to discover new potato germplasm with resistance against Globodera nematode pests S. Chen (1), R. Cui (1), X. Wang (2) (1) Cornell University, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Development of HRM markers tightly linked to extreme resistance to Potato virus Y using next-generation sequencing X. NIE (1), D. De Koeyer (1), A. Murphy (1), V. Dickison (1), M. Singh (2) (1) Fredericton Research and Development Centre, Agriculture and Agri-Food Canada, Canada; (2) Agricultural Certification Services, Canada View Abstract

A synergistic effect of two plant antimicrobial peptides from defensin and lipid-transfer protein families towards Phytophthora infestans E. ROGOZHIN (1), D. Zaytsev (2) (1) Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, Russia; (2) Timiryazev Russian State Agrarian University, Russia View Abstract

Physiological and Molecular-Genetic Characterization of Basal Resistance in Sorghum J. KIMBALL (1), D. Chen (2), G. Stacey (2), P. Balint-Kurti (1) (1) North Carolina State University, U.S.A.; (2) University of Missouri, U.S.A. View Abstract

miR858 functions as a negative regulator of plant susceptibility to the beet cyst nematode Heterodera schachtii S. PIYA (1), T. Baum (2), T. Hewezi (1) (1) University of Tennessee, U.S.A.; (2) Iowa State University, U.S.A. View Abstract

QTL Analysis of flg22-triggered Basal Resistance in Maize X. ZHANG (1), P. Balint-Kurti (1), . Stacey (2), Y. Cao (2) (1) North Carolina State University, U.S.A.; (2) University of Missouri, U.S.A. View Abstract

Molecular & Cellular Plant-Microbe Interactions: Proteomics/Metabolomics/Genomics

Apple replant disease and the –omics: interaction of apple rootstock metabolome and the soil microbiome R. Leisso (1), R. Leisso (2), M. Mazzola (2) (1) USDA-ARS, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Differential metabolome analysis of field-grown maize kernels in response to drought stress L. YANG (1), J. Fountain (1), X. Ni (2), R. Lee (1), S. Chen (3), B. Scully (2), R. Kemerait (1), B. Guo (2) (1) University of Georgia, U.S.A.; (2) USDA-ARS, U.S.A.; (3) University of Florida, U.S.A. View Abstract

Comparison of Fusaruim graminearum transcription factors affecting Fusaruim graminearum virus 1 accumulation based on phenome analysis J. Yu (1), Y. Lee (1), K. Kim (1) (1) Seoul National University, Korea View Abstract

Transcriptomic response of Fusarium verticillioides associated with nitrogen availability and development of sugarcane pokahh boeng disease M. ZHANG (1), Z. Lin (2), J. Wang (3), Y. Bao (3), Q. Guo (3), C. Powell (1), S. Xu (3), B. Chen (3) (1) IRREC-IFAS, University of Florida, U.S.A.; (2) Guangxi University, China; (3) Guangxi University, China View Abstract

Comparative analysis of predicted proteomes from forma speciales of Fusarium oxysporum causing palm wilt S. PONUKUMATI (1), S. Ponukumati (2), J. Huguet (2), J. Rollins (2), M. Elliott (1) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A. View Abstract

Functional characterization of candidate effector proteins identified from the wheat scab fungus Fusarium graminearum S. Lu (1), M. Edwards (1), S. Lu (1) (1) USDA-ARS Cereal Crops Research Unit, U.S.A. View Abstract

The dlt locus contributes to virulence in the necrotrophic pathogen Pectobacterium carotovorum I. RUBIO (1), C. Guerin (1), R. Schaub (1), A. Charkowski (1) (1) University of Wisconsin-Madison, U.S.A.; (2) University of Wisconsin-Madison, U.S.A. View Abstract

Systematic computational network-based analysis to predict subnetwork modules associated with pathogenicity and fumonisins in Fusarium verticillioides M. KIM (1), B. Yoon (1), W. Shim (1) (1) Texas A&M Univ., U.S.A. View Abstract

Computational and functional analyses of MADS-box transcription factor-mediated regulation of fumonisin biosynthesis in Fusarium verticillioides A. HILTON (1), A. Hilton (1), M. Kim (1), C. Ortiz (2), C. Woloshuk (3), B. Yoon (2), W. Shim (2) (1) Texas A&M University, U.S.A.; (2) Texas A&M University, U.S.A.; (3) Purdue University, U.S.A. View Abstract

Analysis of a ketide synthase from fungal endophytes of toxic locoweeds A. NOOR (1), D. Baucom (2), D. Cook (3), R. Creamer (2) (1) Molecular Biology, New Mexico State University, U.S.A.; (2) New Mexico State University, U.S.A.; (3) USDA, ARS, U.S.A.; (4) New Mexico State University, U.S.A. View Abstract

A metabolomic approach to investigate the putative role of drought stress in Esca disease of grapevine M. LIMA (1), A. Machado (1), W. Gubler (1) (1) University of California Davis, U.S.A. View Abstract

Fungal endophyte community analysis of green coffee beans: a comparison across growing regions and qualities R. CAPOUYA (1), T. Mitchell (1), V. Devi Ganeshan (1) (1) The Ohio State University, U.S.A. View Abstract

Replication and transcription are independently modulated for each Banana bunchy top virus DNA component N. YU (1), H. Xie (1), J. Wang (1), X. Zhang (1), Z. Liu (1), Z. Xiong (2) (1) Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, China; (2) University of Arizona, U.S.A. View Abstract

Metagenomic analysis of oomycete communities in rhizosphere soil from field pea on the Canadian prairies using Illumina Miseq B. GOSSEN (1), S. Chatterton (2), N. Foroud (3), A. Esmaeili Taheri (3), D. McLaren (3) (1) AAFC, Canada; (2) AAFC, Canada; (3) AAFC, Canada View Abstract

PiCS, a predicted protein-protein interactome of the frog eye leaf spot pathogen Cercospora sojina A. SUBEDI (1), B. Musungu (1), M. Geisler (2), B. Bluhm (3), A. Fakhoury (1) (1) Southern Illinois University Carbondale, U.S.A.; (2) Southern Illinois University Carbondale, U.S.A.; (3) University of Arkansas Fayetteville, U.S.A. View Abstract

Independent amplification of a housekeeping gene and its evolutionary significance in the Dothideomycetes B. DHILLON (1), G. Kema (2), S. Goodwin (3), B. Bluhm (1) (1) University of Arkansas, U.S.A.; (2) Plant Research International, Wageningen University and Research Centre, Netherlands; (3) USDA/ARS Purdue University, U.S.A. View Abstract

The virulence function and regulation of the metalloprotease gene prtA in the bacterial plant pathogen, Burkholderia glumae T. DE PAULA LELIS (1), J. Peng (1), S. Osti (1), J. Hyun Ham (1) (1) Louisiana State University, U.S.A. View Abstract

Transcriptomic analysis identifies specificity in Fusarium verticillioides metabolic response to Bacillus mojavensis lipopeptides A. BLACUTT (1), S. Gold (2) (1) University of Georgia, U.S.A.; (2) USDA-ARS TMRU, U.S.A. View Abstract

Root transcriptome analysis reveals viral diversity in two species of blueberry N. SAAD (2) , J. Olmstead (1), R. Alcalá-Briseño (2), A. Varsani (3), J. Polston (2) (1) Horticultural Sciences Department, University of Florida, U.S.A.; (2) Department of Plant Pathology, University of Florida, U.S.A.; (3) School of Biological Sciences, University of Canterbury, Christchurch, New Zealand View Abstract

Temporal succession of an Aspergillus flavus biocontrol agent in commercial cornfields in Texas M. SEXTON (1), I. Carbone (1), J. White (1), T. Isakeit (2) (1) Center for Integrated Fungal Research, North Carolina State University, U.S.A.; (2) Texas A&M University, U.S.A. View Abstract

Identification of defense-related genes associated with tomato Sw-7 line against Tomato spotted wilt virus in tomato through transcriptome analysis C. PADMABHAN (1), Y. Zheng (2), R. Shekaste-band (3), K. Stewart (1), J. Scott (3), Z. Fei (2), K. Ling (1) (1) USDA-ARS, U.S. Vegetable Laboratory, U.S.A.; (2) Boyce Thompson Institute for Plant Research, U.S.A.; (3) University of Florida, IFAS, Gulf Coa View Abstract

Transcriptome profiling to discover defense-related genes associated with resistance line ty-5 against Tomato yellow leaf curl virus in tomato C. PADMABHAN (1), Y. Zheng (2), R. Shekaste-band (3), K. Stewart (1), D. Hasegawa (1), J. Scott (3), Z. Fei (4), K. Ling (1) (1) USDA-ARS, U.S. Vegetable Laboratory, U.S.A.; (2) Boyce Thompson Institute for Plant Research, U.S.A.; (3) University of Florid View Abstract

The genome of the endophytic Curtobacterium strain ER 1.4/2 and its potential as a biocontrol of several plant diseases. L. CURSINO (1), K. Pawlak (2), G. Li (2), R. Worobo (3) (1) Keuka College, U.S.A.; (2) Hobart and William Smith Colleges, U.S.A.; (3) Cornell University, U.S.A. View Abstract

Comparative genomics of S and L morphotypes of Aspergillus flavus M. OHKURA (1), M. Ohkura (1), P. Cotty (2), M. Orbach (1) (1) School of Plant Sciences, University of Arizona, U.S.A.; (2) Agricultural Research Services USDA, University of Arizona, U.S.A. View Abstract

Mycotoxins

RNAseq analysis reveals oxidative stress responses of Aspergillus flavus are related to stress tolerance and aflatoxin production J. FOUNTAIN (1), P. Bajaj (2), L. Yang (3), M. Pandey (2), S. Nayak (2), V. Kumar (2), A. Jayale (2), A. Chitikineni (2), S. Chen (4), R. Lee (3), B. Scully (5), R. Kemerait (3), R. Varshney (2), B. Guo (5) (1) University of Georgia, U.S.A.; (2) Internati View Abstract | View Presentation

Aspergillus communities contaminating red chilies with aflatoxins P. SINGH (1), P. Cotty (1) (1) University of Arizona, U.S.A. View Abstract | View Presentation

Diversity of the Aspergillus section Flavi S morphotype in Mozambique L. ARONE (1), J. Augusto (2), R. Bandyopadhyay (3), P. Cotty (4) (1) University of Arizona, U.S.A.; (2) International Institute of Tropical Agriculture (IITA), Mozambique; (3) International Institute of Tropical Agriculture (IITA), Nigeria; (4) Agricultur View Abstract | View Presentation

Relationship between invasive brown marmorated stink bug and fumonisin contamination of field corn in the Mid-Atlantic J. OPOKU (1), H. Mehl (2), N. Kleczewski (3), K. Hamby (4); (1) VIRGINIA TECH TAREC, U.S.A.; (2) Virginia Tech Tidewater AREC, U.S.A.; (3) University of Delaware, U.S.A., (4) University of Maryland, College Park, MD, U.S.A. View Abstract | View Presentation

Hypoxia tolerance as a factor in Aspergillus flavus invasion and toxin contamination of developing maize seeds S. Chalivendra (1), C. DeRobertis (2), K. Damann (1) (1) Louisana State University, U.S.A.; (2) Louisiana State University, U.S.A. View Abstract | View Presentation

Nematodes

Multiple mechanisms of nematode control conferred by seed and root applications of microbial biocontrol agents, Trichoderma and Bacillus M. CADLE-DAVIDSON (1), G. Harman (1), R. Hendriks (2), W. Nosir (1) (1) Advanced Biological Marketing, Inc, U.S.A.; (2) Advanced Biological Marketing, Inc South Africa Division, South Africa View Abstract | View Presentation

Adaptation of soybean cyst nematode populations to the PI 88788 source of resistance from 2000 through 2015 in Iowa and the effects on soybean yields M. MCCARVILLE (1), C. Marett (2), M. Mullaney (2), G. Gebhart (2), G. Tylka (2) (1) Bayer CropScience, U.S.A.; (2) Iowa State University, U.S.A. View Abstract

Interaction between Fusarium and soybean cyst nematode on soybean P. OKELLO (1), A. Adhikari (1), A. Varenhorst (1), S. Osborne (2), E. Byamukama (1), F. Mathew (1) (1) South Dakota State University, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Enhanced nematicidal actitivity of abamectin via nanoparticle formulation R. Guenther (1), C. Opperman (1), J. Zhu (1), D. Lindbo (2), J. Kerns (1), S. Lommel (1), T. Sit (1) (1) North Carolina State University, U.S.A.; (2) USDA-Natural Resources Conservation Service, U.S.A. View Abstract | View Presentation

Effect of Seed Treatments on Root-Knot Management for Soybean and Cotton W. ALJAAFRI (1), W. Aljaafri (1), G. Lawrence (1), V. Klink (1) (1) Mississippi State University, U.S.A. View Abstract | View Presentation

Novel Applications of Whole Genome Sequencing and Bioinformatics in Microbial Forensics and Agricultural Biosecurity

Metabolomics in Microbial Forensics: The example of Citrus Greening Disease in Florida. J. REYES DE CORCUERA (1) (1) Department of Food Science & Technology, University of Georgia, U.S.A. View Abstract | View Presentation

Genomics-based Bioforensic Analysis at the National Bioforensic Analysis Center N. BERGMAN (1) (1) National Biodefense Analysis and Countermeasures Center, U.S.A. View Abstract

Whole genome analyses of all known populations of the Select Agent Rathayibacter toxicus J. STACK (1), M. Arif (2), G. Busot (3), R. Mann (4), S. Liu (2), B. Rodoni (5) (1) Kansas State University, U.S.A.; (2) Kansas State University, U.S.A.; (3) Kansas State Univesrity, U.S.A.; (4) Victoria Department of Economic Development and Primary Indu View Abstract

Microbial Forensics Case Study: Applications of Forensic Technology in a Field Outbreak of Salmon Blotch of onion. J. FLETCHER (1), J. Fletcher (2), I. Moncrief (3), U. Melcher (2), A. Gamliel (4), J. Stack (5) (1) Department of Entomology & Plant Pathology, Oklahoma State University, U.S.A.; (2) Oklahoma State University, U.S.A.; (3) Harry S. Truman College, U.S.A.; View Abstract | View Presentation

Harnessing WGS for Forensic Analysis: Bioinformatics Pipelines and Data. M. COUGER (1), J. Fletcher (2), W. Schneider (3) (1) Oklahoma State University, U.S.A.; (2) Oklahoma State University, U.S.A.; (3) USDA ARS, U.S.A. View Abstract

Oomycete Biology

Effect of red light on morphology of Peronospora belbahrii sporangia J. PATEL (1), S. Zhang (1) (1) Tropical Research and Education Center, University of Florida, U.S.A. View Abstract

Temperature and light effects on germination of Peronospora effusa R. CHOUDHURY (1), S. Koike (2), N. McRoberts (1) (1) University of California, Davis, U.S.A.; (2) UCCE Monterey County, U.S.A. View Abstract

What is a clone? Rethinking the ancestry of US clonal lineages of Phytophthora infestans using whole genome sequences B. KNAUS (1), J. Tabima (2), Z. Kamvar (2), C. Davis (3), H. Judelson (3), N. Grünwald (1) (1) USDA ARS, Horticultural Crops Research Laboratory, U.S.A.; (2) Oregon State University, Botany and Plant Pathology, U.S.A.; (3) Univ. California, Plant Patholog View Abstract | View Presentation

Oomycete species richness in cacao soil assessed by massive amplicon sequencing of the cytochrome oxidase II gene M. RATTI (1), E. Goss (1), J. Cevallos-Cevallos (2), C. Arias (2) (1) Plant Pathology Department, University of Florida, U.S.A.; (2) Centro de Investigaciones Biotecnologicas del Ecuador CIBE-ESPOL, Ecuador View Abstract | View Presentation

Genome sequence and effector repertoire of the hop downy mildew pathogen Pseudoperonospora humuli L. CANO (1), M. Bowman (2), S. Withers (3), D. Gent (4), K. Childs (5), L. Quesada-Ocampo (3) (1) University of Florida, U.S.A.; (2) Van Andel Research Institute, U.S.A.; (3) North Carolina State University, U.S.A.; (4) Oregon State University, U.S.A.; (5 View Abstract

Pathogen Detection

An inexpensive visual PCR method for field detection of Candidatus Liberibacter asiaticus associated with citrus huanglongbing. M. KEREMANE (1), C. Ramadugu (2), D. Hall (3) (1) USDA ARS, U.S.A.; (2) University of California Riverside, U.S.A.; (3) US Horticultural Research Laboratory, U.S.A. View Abstract | View Presentation

Precision diagnostics and next-generation decision support systems N. BOONHAM (1), J. Turner (2), I. Brittain (2), D. McCluskey (3), R. Kaye (3), D. Clarke (4), N. Morant (4), D. Langton (5), F. Salinari (5), W. Charlton (6), M. Andreou (7) (1) Fera, United Kingdom; (2) Fera, United Kingdom; (3) University of Hertfordshi View Abstract | View Presentation

Comparison of two deep sequencing methods for the detection of viruses in sweet potato R. LI (1), M. Cao (2), P. Lan (3), J. Abad (4), C. Zhou (5) (1) USDA-ARS, U.S.A.; (2) Southwest University of China, China; (3) Yunnan Agricultural University, China; (4) USDA-APHIS, U.S.A.; (5) Southwest University of China, China View Abstract | View Presentation

Next generation sequencing evaluation for detection of potential threats or emerging forest pest, entry point from spore and insect traps G. BILODEAU (1), E. Tremblay (2), J. Béribé (3) (1) Canadian Food Inspection Agency, Canada; (2) Canadian Food Inspection Agency, Canada; (3) Natural Resources Canada, Canada View Abstract | View Presentation

Fluorogenic Detection of Plant Viruses by Helicase Dependent Amplification with Self-Quenched Primers S. MOLINA CÁRDENAS (1), A. Salazar Aguirre (1), F. Ochoa-Corona (1), J. Olson (1) (1) Oklahoma State University, U.S.A. View Abstract | View Presentation

Pathogen Dispersal

Plant pathogens were collected over Florida up to 3500 m by a wing-mounted dust collection system called DART (Dust Atmospheric Recovery Technology) A. SCHUERGER (1), B. Tench (2), T. Emmons (3), J. Palaia (4) (1) University of Florida, U.S.A.; (2) Dept. of Plant Pathology, University of Florida, U.S.A.; (3) Dept. of Engineering, Univ. of Central Florida, U.S.A.; (4) 4Frontiers Corporation, U.S.A. View Abstract | View Presentation

Detection and quantification of Bremia lactucae by spore trapping and quantitative PCR. S. KUNJETI (1), A. Anchieta (2), F. Martin (3), Y. Choi (4), M. Thines (5), R. Mitchelmore (1), S. Koike (6), C. Tsuchida (1), W. Mahaffee (7), K. Subbarao (1), S. Klosterman (3) (1) University of California Davis, U.S.A.; (2) USDA Salinas, U.S.A.; (3) US View Abstract | View Presentation

Validation of the CDM ipmPIPE Forecasting System: Relating Aerial Transport of Pathogen Spores to Outbreaks of Cucurbit Downy Mildew K. NEUFELD (1), A. Keinath (2), B. Dutta (3), B. Gugino (4), D. Langston (5), M. Lewis Ivey (6), M. McGrath (7), S. Miller (8), E. Sikora (9), P. Ojiambo (1) (1) Department of Plant Pathology, North Carolina State University, U.S.A.; (2) Clemson Universit View Abstract | View Presentation

Timing of primary inoculum release by Monilinia vaccinii-corymbosi infecting blueberries in the US Pacific Northwest. D. HARTEVELD (1), T. Peever (2), J. Pscheidt (3) (1) Washington State University, U.S.A.; (2) Washington State University, U.S.A.; (3) Oregon State University, U.S.A. View Abstract | View Presentation

Trapping conidia spores of Podosphaera aphanis in high tunnels and field strawberry plots. R. ONOFRE (1), D. Gadoury (2), N. Dufault (1), N. Peres (1) (1) UNIVERSITY OF FLORIDA, U.S.A.; (2) Cornell University, U.S.A. View Abstract

Pathogen Diversity

Microsatellite genotyping reveals high genetic diversity in Phytophthora infestans from Mexico S. SHAKYA (1), M. Larsen (2), M. Condoy (3), H. Lozoya-Saldana (3), N. Grunwald (2) (1) OREGON STATE UNIVERSITY, U.S.A.; (2) USDA-ARS, U.S.A.; (3) Universidad Autónoma Chapingo, Mexico View Abstract | View Presentation

Illuminating the diversity of rust fungi infecting millets J. DEMERS (1), L. Castlebury (1) (1) USDA-ARS, U.S.A. View Abstract | View Presentation

Characterization of isolates of Phytophthora capsici from the mid-Atlantic region, US. N. ABEYSEKARA (1), H. Hickman (2), S. Westhafer (2), N. Gregory (2), G. Johnson (2), T. Evans (2), N. Donofrio (2) (1) University of Delware, U.S.A.; (2) University of Delaware, U.S.A. View Abstract | View Presentation

Genetic diversity of Colletotrichum isolates from Sorghum bicolor and S. halepense in the Southeastern United States K. XAVIER (1), C. Schardl (1), E. Buiate (1), M. Torres (2), M. Queiroz (3), S. Chopra (4), L. Vaillancourt (5) (1) Department of Plant Pathology, University of Kentucky, U.S.A.; (2) Functional Genomics Laboratory, Cornell University/Qatar Foundation, Qat View Abstract

Phylogenetic and population analyses of the brown root-rot pathogen (Phellinus noxius) highlight the existence of two distinct populations J. STEWART (1), N. Sahashi (2), T. Hattori (2), Y. Ota (2), L. Shuey (3), R. Schlub (4), N. Atibalentia (5), F. Brooks (6), A. Tang (7), R. Lam (7), M. Leung (8), L. Chu (9), H. Kwan (9), A. Mohd Farid (10), S. Lee (10), C. Chung (11), H. Lee (11), Y. Hua View Abstract

Pathogen Ecology

Evidence for sexual reproduction in Fusicladium effusum N. CHARLTON (1), C. Mattupalli (2), B. Wood (3), C. Bock (3), C. Young (2) (1) The Samuel Roberts Noble Foundation, U.S.A.; (2) The Samuel Roberts Noble Foundation, U.S.A.; (3) USDA-ARS-SEFTNRL, U.S.A. View Abstract

Long-term rotation history and previous crop effects on corn seedling health M. BENITEZ (1), S. Osborne (2), M. Lehman (2) (1) USDA, Northe Central Agricultural Research Laboratory, U.S.A.; (2) USDA, North Central Agricultural Research Laboratory, U.S.A. View Abstract | View Presentation

Ecological Impact of Signaling Chemicals on Phytophthora erythroseptica H. JIANG (1), J. Hao (1) (1) University of Maine, U.S.A. View Abstract | View Presentation

Model for the geographic origin and spread of the globally distributed pathogen Phytophthora palmivora J. Wang (1), E. Goss (1), M. Coffey (1) (1) University of Florida, U.S.A. View Abstract | View Presentation

Pathologist of Distinction

POD Talk Barbara Valent | View Presentation

POD Talk Bob Gilbertson | View Presentation

POD Talk Jacque Fletcher | View Presentation

POD Talk Bill Fry | View Presentation

Plant Pathologists of the Future: Showcasing the Top Graduate Students from APS Division Meetings

Evaluation of Nematicides for Control of Southern Root-Knot Nematodes in Lima Bean J. JONES (1), G. Johnson (1), N. Kleczewski (1), J. Desaeger (2) (1) University of Delaware, U.S.A.; (2) DuPont Crop Protection, U.S.A. View Abstract | View Presentation

Identification of Helianthus accessions resistant to Plasmopara halstedii (downy mildew) and Puccinia helianthi (rust). R. HUMANN (1), T. Gulya (2), M. Acevedo (3), L. Marek (4), J. Jordahl (3), S. Meyer (3), S. Markell (3) (1) North Dakota State University, U.S.A.; (2) USDA-ARS Sunflower Research Unit (retired), U.S.A.; (3) North Dakota State University, U.S.A.; (4) USDA- View Abstract | View Presentation

Physiological races and genetic diversity of isolates of Phytophthora capsici from Mexican crop production fields. A. CASTRO ROCHA (1), P. Osuna Avila (2), S. Shrestha (3), R. Lyon (4), G. Rodíguez Alvarado (5), S. Fernández Pavía (5), K. Lamour (3) (1) Universidad Autónoma de Ciudad Juárez, Mexico; (2) Universidad Autónoma de Ciudad Juárez, Mexico; (3) University of View Abstract | View Presentation

Searching for genomic signatures of host jumping onto raspberry and strawberry in two Phytophthora sister taxa. J. Tabima (1), B. Kronmiller (2), B. Knaus (3), C. Press (4), I. Zasada (4), B. Tyler (2), N. Grünwald (4), D. Shen (5) (1) Oregon State University, U.S.A.; (2) Oregon State University, U.S.A.; (3) USDA ARS, U.S.A.; (4) USDA ARS, U.S.A.; (5) Nanjing Agric View Abstract | View Presentation

Tetracycline resistance genes in epiphytic bacteria collected from Pennsylvania stone fruit orchards. S. BARDSLEY CAPASSO (1), K. Peter (2), H. Ngugi (3), M. Jimenez Gasco (1) (1) The Pennsylvania State University, U.S.A.; (2) The Pennsylvania State University, U.S.A.; (3) Dupont, U.S.A. View Abstract | View Presentation

Two symptoms of Cercospora Leaf Blight of soybean suggests two diseases caused by the same pathogen E. CHAGAS FERREIRA DA SILVA (1), T. Garcia (2), A. Chanda (3), C. Robertson (2), . Lygin (5), R. Schneider (2) (1) Louisiana State Univ, Agricultural Center, U.S.A.; (2) Louisiana State Univ, Agricultural Center , U.S.A.; (3) Department of Plant Pathology View Abstract

Plant Resistance

COS-OGA stimulates plant innate immunity in a cumulative process that involves salicylic acid G. VAN AUBEL (1), P. Van Cutsem (2) (1) University of Namur, Belgium; (2) University of Namur, Research Unit in Plant Cellular and Molecular Biology, Belgium View Abstract | View Presentation

Antifungal mechanisms of a plant defensin MtDef4 are not conserved between ascomycete fungi, Neurospora crassa and Fusarium graminearum K. ISLAM (1), K. El-Mounadi (2), D. Shah (3) (1) Donald Danforth Center, U.S.A.; (2) Kutztown University of Pennsylvania, U.S.A.; (3) Donald Danforth Center, Bangladesh View Abstract | View Presentation

Identifying genetic variation in the Sorghum PAMP response D. CHEN (1), P. Balint-Kurti (2), G. Stacey (1) (1) Divisions of Plant Science and Biochemistry, University of Missouri-Columbia, MO, 65201, U.S.A.; (2) USDA-ARS, Department of Plant Pathology, North Carolina State University, Raleigh, NC, U.S.A. View Abstract | View Presentation

Cultivar-specific wheat miRNAs during stripe rust infection in Triticum aestivum S. RAMACHANDRAN (1), N. Mueth (1), P. Zheng (1), S. Hulbert (1) (1) Washington State University, U.S.A. View Abstract

Understanding quantitative disease resistance in rice: defense response gene regulation and promoter patterns B. TONNESSEN (1), R. Mauleon (2), N. Alexandrov (2), J. Leach (3) (1) Colorado State University, U.S.A.; (2) International Rice Research Institute, Philippines; (3) Colorado State University, U.S.A. View Abstract | View Presentation

Population Dynamics

Epidemiology and Population Biology of Grape Downy Mildew (Plasmopara viticola) in Georgia C. HONG (1), P. Brannen (1), H. Scherm (1) (1) University of Georgia, U.S.A. View Abstract

Pseudoperonospora cubensis on commercial and non-commercial cucurbits in North Carolina: population structure determined by simple sequence repeats E. WALLACE (1), L. Quesada-Ocampo (2) (1) NCSU, U.S.A.; (2) NCSU, U.S.A. View Abstract | View Presentation

Changes in Plasmopara obducens population structure corresponded with the emergence and rapid spread of the impatiens downy mildew epidemics C. SALGADO-SALAZAR (1), Y. Rivera (1) (1) USDA-ARS, Rutgers University, U.S.A. View Abstract

Emergent rudbeckia downy mildew epidemics caused by Plasmopara halstedii are genetically distinct from the pathogen populations infecting sunflower Y. RIVERA (1), C. Salgado-Salazar (1), T. Gulya (2), J. Crouch (3) (1) USDA-ARS Systematic Mycology and Microbiology Laboratory and Rutgers University, U.S.A.; (2) USDA ARS Sunflower and Plant Biology Research Unit, U.S.A.; (3) USDA-ARS Systematic Mycolog View Abstract | View Presentation

Species diversity and population structure of Pythium and Globisporangium in Long Island, NY ornamental greenhouses in 2014 M. Proano (1), C. Ayala (2), A. Chiriboga (2), M. Daughtrey (3), C. Garzon (4), S. Marek (1), H. Melouk (1), S. Marek (4) (1) OKLAHOMA STATE UNIVERSITY, U.S.A.; (2) Universidad de las Fuerzas Armadas ESPE, Sangolquí, Ecuador, Ecuador; (3) Cornell Universi View Abstract | View Presentation

Preparing for Careers in Industry

Developing soft skills? What is the Private Sector looking for? C. GALLUP (1), C. Gallup (1) (1) Dow AgroSciences, U.S.A. View Abstract | View Presentation

Private sector career paths with insights for preparation. D. MCDUFFEE (1) (1) Valent USA Corporation, U.S.A. View Abstract | View Presentation

Navigating the job offer. E. OYARZABAL (1), E. Oyarzabal (1) (1) Monsanto, U.S.A. View Abstract

Technical skills relevant for industry positions:Your research project & beyond. R. GOSWAMI (1), R. Goswami (2) (1) Delaware State University, U.S.A.; (2) Delaware State University, U.S.A. View Abstract | View Presentation

How to ace an industry interview. E. TEDFORD (1), E. Tedford (2) (1) Syngenta, U.S.A.; (2) Syngenta, U.S.A. View Abstract | View Presentation

Professionalism Outreach: Outreach & Engagement

National Seed Health System: standardizing seed health practices in the United States for seed exports N. GONZALEZ (1), T. Bruns (1), G. Munkvold (2) (1) Iowa State University, U.S.A.; (2) Iowa State University, U.S.A. View Abstract

National Clean Plant Network for Roses K. ONG (1), D. Byrne (2), D. Golino (3), N. Anderson (2), S. Sim (3), B. Pemberton (4) (1) Texas Plant Disease Diagnostic Lab, Texas A&M AgriLife Extension Service, U.S.A.; (2) Department of Horticultural Sciences, Texas A&M University, U.S.A.; (3) Founda View Abstract

Implementation of a Quality Management System in an ISO 17025 Accredited Plant Pathogen Diagnostic Laboratory. D. PICTON (1), A. Barth (1), K. Burch (2), P. Shiel (2) (1) USDA-APHIS-PPQ-S&T-CPHST, U.S.A.; (2) USDA-APHIS-PPQ-S&T-CPHST, U.S.A. View Abstract

eFile and the USDA Animal Plant Health Inspection Service’s (APHIS) PPQ Pest Permitting Process J. ABAD (1), J. Abad (1) (1) USDA-APHIS, U.S.A. View Abstract

Professionalism Outreach: Professional Development

Master in Plant Health Management: education and training to meet 21st century trends and challenges in Extension and industry M. LEWANDOWSKI (1), A. Dorrance (2), L. Canas (3), B. Kleinke (4), E. Roche (5), J. Schoenhals (6), S. Williams (1), F. Peduto Hand (1), J. Jasinksi (7), M. Gardiner (3), P. Paul (2), A. Londo (6) (1) The Ohio State University, Department of Plant Patholo View Abstract

Professionalism Outreach: Teaching & Learning

Virtual disease management using Blightpro DSS M. MCKELLAR (1), I. Small (1), W. Fry (1) (1) Cornell University, U.S.A. View Abstract

Promising Phenotyping Efforts for Understanding Genetic and Molecular Bases of Plant Disease Resistance

Unraveling the host-pathogen interaction via phenotyping and molecular characterization of resistance?Soybean as a case study. S. CIANZIO (1) (1) Iowa State University, U.S.A. View Abstract | View Presentation

Field-based high-throughput phenotyping for evaluation of barely yellow dwarf resistance in wheat breeding. J. POLAND (1), X. Wang (2), D. Rotenberg (2), A. Laney (2), A. Whitfield (2), M. Ramos (2), A. Fritz (2) (1) Kansas State University, U.S.A.; (2) Kansas State University, U.S.A. View Abstract | View Presentation

Molecular aspects of host pathogen interactions in common bacterial blight in Phaseolus vulgaris caused by Xanthomonas K. Pauls (1), K. Pauls (1), W. Xie (1), T. Smith (1), G. Perry (1), E. Castro (1) (1) Department of Plant Agriculture, University of Guelph, Canada View Abstract | View Presentation

Development of controlled high throughput and user friendly assays for host responses to rice pathogen isolates. Y. JIA (1) (1) USDA-ARS Dale Bumpers National Rice Research Center, U.S.A. View Abstract | View Presentation

Field-based phenomics for stress detection: an overview. J. WHITE (1), M. Newcomb (2), P. Andrade-Sanchez (3) (1) Arid-Land Agricultural Research Center, Maricopa, AZ, U.S.A.; (2) University of Arizona, Maricopa, AZ, U.S.A.; (3) Agricultural & Biosystems Engineering, University of Arizona, Maricopa, AZ, U.S.A View Abstract | View Presentation

Phenotyping for resistance to viruses in maize M. REDINBAUGH (1), J. Zambrano (2), M. Jones (3), D. Francis (4), R. Louie (3) (1) USDA- ARS Corn, Soybean and Wheat Quality Research, U.S.A.; (2) INIAP, Ecuador; (3) USDA, ARS CSWQRU, U.S.A.; (4) Ohio State University, U.S.A. View Abstract | View Presentation

Molecular mechanisms behind the HLB symptom variations and rapid selection for variant citrus plants with greater HLB resistance/tolerance Y. DUAN (1), M. Pitino (1) (1) USDA-ARS-USHRL, U.S.A. View Abstract

Risk Assessment

Validation and refinement of a predictive model for Sclerotinia sclerotiorum apothecial development in soybean fields J. WILLBUR (1), H. Lucas (2), B. Mueller (2), S. Chapman (2), M. Kabbage (2), D. Smith (2) (1) University of Wisconsin - Madison, U.S.A.; (2) University of Wisconsin - Madison, U.S.A. View Abstract | View Presentation

Association between temperature sensitivity and virulence of Blumeria graminis f. sp. tritici Y. ZHOU (1), L. Han (1), Y. Zou (1), X. Duan (1), J. Fan (1) (1) Institute of Plant Protection, Chinese Academy of Agricultural Sciences, China View Abstract

Spatio-temporal aspects of rust and nutrition of coffee plants in different irrigation systems. M. SILVA (1), M. Silva (1), E. Pozza (2), G. Vasco (2), P. Paula (2), E. Chaves (2), G. Dornelas (2), M. Silva (2), A. Pozza (2) (1) UFLA, Brazil; (2) Lavras Federal University, UFLA, Brazil View Abstract

Weather-based risk assessment models for common leaf spot and black seed disease of strawberry caused by Mycosphaerella fragariae O. CARISSE (1) (1) Agriculture and AgriFood Canada, Canada View Abstract

Spatio-temporal analysis of rice blast incidence in China F. Guo (1), M. Lu (2), B. Wu (1), F. Guo (1) (1) China Agricultural University, China; (2) National Agro-tech Extension and Service Center, China View Abstract

Role of Phytobiomes in Plant Disease Control

Phyllosphere fungal endophyte effects on plant disease are context-dependent P. BUSBY (1), G. Crutsinger (2), M. Barbour (2), G. Newcombe (3) (1) Oregon State University, U.S.A.; (2) UBC, Canada; (3) U Idaho, U.S.A. View Abstract

Can I use this strain? Legal issues impacting the use of microbial resources and how whole genome sequence may solve them. K. McCluskey (1) (1) Kansas state university, U.S.A. View Abstract | View Presentation

Evaluation of microbials using comparative genomics and high-throughput assays as a method to reduce product development time. S. INCH (1), J. Leder (2), A. Taylor (2), M. Frodyma (2), M. Furlan (2), M. Schulte (2), R. Berka (2), M. Maranta (2), B. Cherry (3), E. Prusinkiewicz (4) (1) Novozymes, U.S.A.; (2) Novozymes, U.S.A.; (3) novozymes.com, U.S.A.; (4) novozymes, Canada View Abstract

Exploitation of microbial symbionts from prairie grasslands for crop enhancement. K. CRAVEN (1), K. Craven (2) (1) Samuel Roberts Noble Foundation, U.S.A.; (2) The Samuel Roberts Noble Foundation, U.S.A. View Abstract | View Presentation

The role of insect-associated microbes in altering host plant defenses. C. CASTEEL (1), A. Bak (2), S. Whitham (3) (1) University of California-Davis, U.S.A.; (2) University of California - Davis, U.S.A.; (3) Iowa State University, U.S.A. View Abstract | View Presentation

The role of microbial communities in the development of the immune competency of plants. S. HE (1) (1) Michigan State University, U.S.A. View Abstract

Schroth Faces of the Future Symposium: Epidemiology and Management

Fungicide stress induces genome mutation in Sclerotinia sclerotiorum. S. EVERHART (1), B. Amaradasa (1) (1) University of Nebraska, U.S.A. View Abstract

Integrated disease management for optimizing soybean yields and profitability. H. MEHL (1) (1) Virginia Tech Tidewater AREC, U.S.A. View Abstract | View Presentation

Modelling landscape-scale spread to inform plant health policy N. CUNNIFFE (1) (1) University of Cambridge, United Kingdom View Abstract

Monitoring spread of Phymatotrichopsis root rot disease in alfalfa fields using aerial imagery C. MATTUPALLI (1), C. Moffet (2), J. Rogers (1), C. Young (1) (1) The Samuel Roberts Noble Foundation, U.S.A.; (2) USDA-ARS, U.S.A. View Abstract

Crystal ballroom dancing for phytoepidemiological prospecting D. ANCO (1) (1) Clemson University, U.S.A. View Abstract

See the Unseen: Metatranscriptomics Unviels Plant and Vector-Pathogen Interactions

Transcriptome analysis of tanoak’s mechanisms of innate and phosphite-induced resistance to Phytophthora ramorum K. HAYDEN (1), C. Eyre (2), P. Croucher (2), S. Schechter (2), J. Wright (3), M. Garbelotto (4) (1) Royal Botanic Garden Edinburgh, United Kingdom; (2) University of California, Berkeley, U.S.A.; (3) USDA Forest Service Pacific Southwest Research Station, View Abstract

Transcriptomics of a downy mildew-spinach interaction. R. ORNELAS (1), S. Klosterman (2), S. Koike (3), A. Hulse-Kemp (4), L. Derevnina (4), R. Michelmore (4), S. Reyes-Chin-Wo (4), K. Stoffel (4), A. Van Deynze (4) (1) California State University at Monterey Bay, U.S.A.; (2) United States Department of Agric View Abstract | View Presentation

Probing Pseudomonas syringae host interactions using metatranscriptomics. M. FILIATRAULT (1) (1) USDA-ARS/Cornell University, U.S.A. View Abstract | View Presentation

RNA-Seq unveils distinct interactions of whitefly with Tomato chlorosis virus and other viruses N. Kaur (1), D. Hasegawa (2), W. Chen (3), Y. Zheng (3), Z. Fei (3), K. Ling (4), W. Wintermantel (5) (1) USDA, U.S.A.; (2) Boyce Thompson Institute, Ithaca, NY 14853, USA; USDA-ARS, Salinas, CA, USA, U.S.A.; (3) Boyce Thompson Institute, Ithaca, NY 14853 View Abstract | View Presentation

Metatranscriptomics: Principles and Applications for Studying Plant-Pathogen Interactions L. GUO (1), L. Ma (2), R. Wick (2), K. Allen (2), K. Vescio (2) (1) University of Massachusetts, Amherst, U.S.A.; (2) University of Massachusetts, Amherst, U.S.A. View Abstract | View Presentation

Shovel-Ready Trees: Novel Strategies for Development of Disease Resistant Woody Plants

Fourier-transform infrared spectroscopy for the rapid identification of disease resistant trees C. VILLARI (1), P. Bonello (2), R. Sniezko (3), L. Rodriguez-Saona (4) (1) The Ohio State University - University of Gerogia, U.S.A.; (2) Department of Plant Pathology, The Ohio State University, U.S.A.; (3) USDA Forest Service, U.S.A.; (4) Department of View Abstract

Rapid selection and opportunities for restoration of laurel wilt tolerant Persea species. J. SMITH (1), M. Hughes (2), B. Held (3), R. Blanchette (3), T. Dreaden (4), R. Ploetz (2) (1) University of Florida, U.S.A.; (2) University of Florida, U.S.A.; (3) University of Minnesota, U.S.A.; (4) USDA-Forest Service, Southern Research Station, U.S.A View Abstract | View Presentation

Marker assisted selection opportunities for rust and necrotroph resistance in southern pines. J. DAVIS (1) (1) University of Florida, Gainesville, FL, U.S.A. View Abstract | View Presentation

Shovel-ready trees: Forest Health Initiative a model for rapid development and deployment of disease resistant trees C. NELSON (1), C. Nelson (2), W. Powell (3), S. Merkle (4), J. Carlson (5), M. Staton (6), C. Nairn (7), J. Holliday (8), J. Westbrook (9), L. Georgi (9), F. Hebard (9), T. Zhebentyayeva (10), S. Jeffers (10), P. Sisco (9), J. James (11), A. Abbott (12) ( View Abstract | View Presentation

Shovel-Ready Trees: Novel Strategies for Development of Disease Resistant Woody Plants J. LEBOLDUS (1) (1) Oregon State University, U.S.A. View Abstract | View Presentation

The Function and Mechanism of CRISPR and Its Applications

CRISPR RNA-guided Genome Editing in Human Stem Cells, Animals, and Plants J. KIM (1) (1) Center for Genome Engineering, Institute for Basic Science, South Korea View Abstract | View Presentation

Development of citrus canker resistant varieties by manipulation of CsLOB1, the citrus susceptibility gene to Xanthomonas citri, using Cas9/sgRNA N. WANG (1), H. Jia (1) (1) University of Florida, U.S.A. View Abstract

Activity and repurposing of native CRISPR-CAS systems R. BARRANGOU (1) (1) NC State University, U.S.A. View Abstract | View Presentation

CRISPR/dCas9 technologies for transcriptome manipulation and disease research S. QI (1) (1) Stanford University, U.S.A. View Abstract

Revenge of the phage: Anti-CRISPRs strike back. J. BONDY-DENOMY (1) (1) University of California, San Francisco, U.S.A. View Abstract | View Presentation

The Impact of Vector-Borne Bacteria Pathogen on Associated Hosts

Genomic insights into citrus greening and its transmission. D. GABRIEL (1), M. Jain (1), L. Fleites (1) (1) University of Florida, U.S.A. View Abstract | View Presentation

The impact of Time of Infection on Zebra Chip Symptom Development. C. RUSH (1), F. Workneh (1), L. Paetzold (1), A. Rashed (2) (1) Texas A&M AgriLife Research, U.S.A.; (2) University of Idaho, U.S.A. View Abstract | View Presentation

Reducing Hemipteran Vectors and pathogen spread, Topically applied RNAi. W. HUNTER (1), E. Andrade (2) (1) USDA-ARS, U.S.A.; (2) EMBRAPA, Cassava & Fruits, Brazil View Abstract | View Presentation

How bacterial pathogens hijack cellular processes to turn plants into ‘Zombies’ S. HOGENHOUT (1), P. Pecher (1) (1) John Innes Centre, United Kingdom View Abstract | View Presentation

The impact of ‘Candidatus Liberibacter solanacearum’ and its insect vector on potato production in New Zealand. A. PITMAN (1), J. Dohmen-Vereijssen (2), N. Agnew (2), P. Wright (2), F. Shah (2), S. Thompson (2) (1) The New Zealand Institute for Plant & Food Research, New Zealand; (2) The New Zealand Institute for Plant & Food Research, New Zealand View Abstract | View Presentation

The Phytobiome: A New Frontier in Turfgrass Disease Management

Perfect harmony: Improving our understanding of microbial relationships in the turfgrass community. J. ROBERTS (1), J. Crouch (2), Z. Carter (3) (1) University of Maryland, U.S.A.; (2) USDA-ARS, U.S.A.; (3) Eleanor Roosevelt High School, U.S.A. View Abstract

Impacts of turf management practices on the soil microbiome. J. CROUCH (1), C. Schmid (2), J. Hempfling (3), J. Murphy (2), B. Clarke (2), L. Beirn (2) (1) USDA-ARS, U.S.A.; (2) Rutgers University, U.S.A.; (3) Rutgers University, Canada View Abstract | View Presentation

Is organic golf course management a hole in one?: Using microbial analysis to evaluate the turf phytobiome under different management strategies E. ALLAN-PERKINS (1), D. Manter (2), G. Jung (3) (1) University of Massachusetts, U.S.A.; (2) USDA ARS, U.S.A.; (3) University of Massachusetts Amherst, U.S.A. View Abstract

Microbiome under Turfgrass: Diversity, Abundance and Ecological Functions W. SHI (1), W. Shi (1) (1) North Carolina State University, U.S.A. View Abstract

Translational Research for the Management of Complex Diseases

Developing the next generation of biological control: Genomic approaches for predicting most effective stains. I. CARBONE (1), M. Sexton (1), R. Gell (1), J. White (1), R. Singh (1), T. Isakeit (2), B. Bluhm (3), K. Wise (4), C. Woloshuk (4), B. Horn (5), R. Heiniger (6) (1) Center for Integrated Fungal Research, Department of Plant Pathology, North Carolina State View Abstract

Accelerating the selection of candidate genes to control mycotoxin contamination of maize through host-induced gene silencing (HIGS) B. BLUHM (1), J. Smith (2), Y. Ramegowda (2), B. Dhillon (2), W. Shim (3), C. Woloshuk (4) (1) University of Arkansas, U.S.A.; (2) University of Arkansas, U.S.A.; (3) Texas A&M University, U.S.A.; (4) Purdue University, U.S.A. View Abstract | View Presentation

Identifying new genetic targets for maize ear rot and mycotoxin control through computational subnetwork module analyses W. SHIM (1), M. Kim (1), H. Zhang (1), H. Yan (1), B. Yoon (1), G. Payne (2), C. Woloshuk (3) (1) Texas A&M University, U.S.A.; (2) North Carolina State University, U.S.A.; (3) Purdue University, U.S.A. View Abstract

Management of Aspergillus and Fusarium ear rot diseases. K. WISE (1), T. Isakeit (2), R. Heineger (3), C. Woloshuk (4) (1) Purdue University, U.S.A.; (2) Texas A&M University, U.S.A.; (3) North Carolina State University, U.S.A.; (4) Purdue University, U.S.A. View Abstract

Viral Diseases

Threat to control Canna Yellow Streak Virus; altered infectivity by associating with a Sub-viral element of novel Canna Yellow Mottle Virus D. WIJAYASEKARA (1), P. Hoyt (1), B. Dunn (1), A. Gimondo (1), J. Verchot (1) (1) oklahoma state university, U.S.A. View Abstract | View Presentation

Investigating the spread of Grapevine red blotch-associated virus E. Cieniewicz (1), M. Fuchs (1), K. Perry (2) (1) Cornell University New York State Agriculture Experiment Station, U.S.A.; (2) Cornell University, U.S.A. View Abstract

Factors that influence the structure of Citrus tristeza virus populations. S. HARPER (1), S. Cowell (2), W. Dawson (2) (1) Department of Plant Pathology, University of Florida, U.S.A.; (2) Department of Plant Pathology, University of Florida, U.S.A. View Abstract

Epidemiological insights into an emerging virus disease: Blueberry shock virus on cranberry S. THOMAS-SHARMA (1), L. Wells-Hansen (1), R. Page (1), V. Kartanos (2), E. Saalau-Rojas (3), P. McManus (1) (1) University of Wisconsin-Madison, U.S.A.; (2) Bayer Crop Science, U.S.A.; (3) UMass Cranberry Station, U.S.A. View Abstract | View Presentation

Virus populations associated with Maize lethal necrosis (MLN) in East Africa L. STEWART (1), M. Redinbaugh (1), S. Wijeratne (2), G. Mahuku (3), C. Niblett (4), A. Kiggundu (5), G. Asea (5), A. Wangai (6), K. Willie (1), D. Massawe (7) (1) USDA-ARS Corn, Soybean and Wheat Quality Research Unit, U.S.A.; (2) Molecular and Cellular I View Abstract | View Presentation

Virus-Host Interactions

Bean common mosaic virus isolate overcomes the bc-3 resistance allele in common bean: virus genetic determinants defining a novel pathogenicity group X. FENG (1), J. Myers (2), A. Karasev (1) (1) University of Idaho, U.S.A.; (2) Oregon State University, U.S.A. View Abstract | View Presentation

Understanding superinfection exclusion by complex populations of Citrus tristeza virus S. KANG (1), M. Bergua (1), S. Folimonova (1) (1) University of Florida, U.S.A. View Abstract

Determination and characterization of a symptom determinant of Grapevine fanleaf virus L. OSTERBAAN (1), L. Osterbaan (1), M. Fuchs (1) (1) Section of Plant Pathology and Plant-Microbe Biology, Cornell University, New York State Agricultural Experiment Station, U.S.A. View Abstract | View Presentation

Ethylene inhibition can prevent aphid attraction and Potato Virus Y spread. A. BAK (1), S. Chen (2), T. Antichera (2), L. Perilla (2), C. Casteel (2) (1) UCDavis, U.S.A.; (2) UCDavis, U.S.A. View Abstract | View Presentation

Potato virus Y strains co-localize and compete in single epidermal leaf cells S. MONDAL (1), S. Mondal (1), S. Gray (1), M. Ghanim (2) (1) Cornell University, U.S.A.; (2) Volcani Center, Israel View Abstract | View Presentation

When Science and Politics Collide: The Good, The Bad, and The Ugly

Impact on industry's imports and exports of a pest being listed. S. THOMAS (1) (1) Monsanto, U.S.A. View Abstract | View Presentation

The Road to Perdition: The process from detection of exotic pests to regulatory action C. MAROON-LANGO (1), E. Podleckis (1) (1) USDA APHIS PPQ, U.S.A. View Abstract

The plant regulatory challenges caused by improved diagnostic techniques combined with globalization D. Golino (1) (1) University of California, U.S.A. View Abstract | View Presentation

Conducting research on strictly regulated quarantine pathogens and diseases - Huanglongbing, citrus canker, and citrus black spot T. SCHUBERT (1) (1) Florida Department of Agriculture and Consumer Services-Division Of Plant Industry, U.S.A. View Abstract | View Presentation