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APS/USDA National Plant Disease Recovery System​

The National Plant Disease Recovery System (NPDRS) was established in January 30, 2004 per mandate of the Homeland Security Presidential Directive Number 9 (HSPD-9).

The directive established a national policy to defend US agriculture and food systems from terrorist attacks, major disasters, and other emergencies. The Secretary of Agriculture in cooperation with other Federal departments and agencies is directed to accelerate and expand development of current and new counter-measures against the intentional, inadvertent introduction or natural occurrence of catastrophic animal, plant, and zoonotic diseases.

A NPDRS is to be implemented to ensure that the tools, infrastructure, and capacity required to mitigate the impact of high consequence plant disease outbreaks affecting economically important US food crops are such that a reasonable level of crop production is maintained.

This cooperative effort maintains a complete list of recovery plans at:

For NPDRS Workshop summaries and resources, see below.

National Plant Disease Recovery System
Outreach Presentations


The National Plant Disease Recovery System (NPDRS) Meeting Summary

July 31, 2016 (Sunday, 6-8pm)

Tampa Marriott Hotel, Conference Rm 4

I. Introductions

II. Dr. J. Fajardo provided updates to lead authors and other contributors/experts in developing new and updating existing recovery plans on scheduled deadlines and disbursement of funds in the cooperative agreement.

A notable accomplishment of NPDRS is the publication of a featured article titled “The Evolution of a Process for Selecting and Prioritizing Plant Diseases for Recovery Plans” in Plant Disease authored by N. McRoberts, C.S. Thomas, J.K. Brown, F.W. Nutter, J.P. Stack, and R.D. Martyn on April 2016.

Another accomplishment was the first publication of a recovery plan titled “Recovery Plan for Laurel Wilt on Redbay and Other Forest Species Caused by Raffaelea lauricola and Disseminated by Xyleborus glabratus” in Plant Health Progress (PHP) on November 2015. PHP is an online peer-reviewed journal of applied plant health and the article was authored by Hughes, M. A., Smith, J. A., Ploetz, R. C., Kendra, P. E., Mayfield A. E., III, Hanula, J. L., Hulcr, J., Stelinski, L. L., Cameron, S., Riggins, J. J., Carrillo, D., Rabaglia, R., Eickwort, J., and Pernas, T.

Discussion on obtaining recent and scientific online information and documentation on exotic plant diseases that will be available to regulators, scientists and decision-makers was raised to supplement, corroborate and complement with NPDRS. Suggested websites include: PestLens, ProMed International Society for Infectious Diseases, National Agricultural Pest Information System (NAPIS), European and Mediterranean Plant Protection Organization (EPPO), North American Plant protection Organization (NAPPO), Center for Agriculture and Biosciences International (CABI), and New Disease Reports of the British Society for Plant Pathology (BSSP).

III. Three 15-minute slide presentations and updates were delivered at the meeting: 

A. Statistical Model for Development of Generic Recovery Plans – N. McRoberts and C. Thomas (University of California-Davis)

B. Cucumber Green Mottle Mosaic Virus – T. Pittman (University of California-Davis)

C. Asiatic Brown Rot of Stonefruits – Sara Villani (North Carolina State University)   

IV. Adjournment


USDA Office of Pest Management Policy—APS Webinars

May 7, 2015
Overview of Zebra Chip Research in the U.S.


The National Plant Disease Recovery System (NPDRS) Meeting Summary

August 2, 2015 (Sunday, 8-10pm)

Pasadena Convention Center Rm 101

I.                   Introductions

II.                 Dr. J. Fajardo provided statistics on the two webinars that were conducted on May 7, 2015 on the ‘Overview of Zebra Chip Research in the U.S.’ by Dr. Charlie Rush of Texas A&M AgriLife Research and on May 19, 2015 on the ‘Threat of Cowpea Mild Mottle Virus – What We Know and Don’t Know About this Exotic Virus’ by Dr. Judith Brown of the University of Arizona. 

The two webinars were hosted by USDA-Office of Pest Management Policy and APS as an education and extension effort to reach out to NPDRS stakeholders (local, state and federal plant health officials; scientists, policy-makers, commodity and industry groups) in sharing disease recovery plans. 

Based on the data provided by APS, about 21% of the registrants were international and 79% were based in the US.  About 40% of the registrants belonged to the state organizations or university sector; about 40% from the industry sector composed of registrants, producers, agricultural suppliers, commodity, and agribusiness groups; and about 20% came from the federal and government sector.

 As of July 26, 2015, Dr. J. Fajardo provided statistics on the number of people who listened in from the post-recording of the two webinars conducted.  There were 226 who viewed the webcast for the Zebra Chip of Potatoes and 164 views for the Cowpea Mild Mottle Mosaic Virus.

The two webinars were archived in the webcasts of the Plant Management Network Education Center and the topical meetings and workshops of NPDRS at the APSnet website.

III.                An Ad Hoc Committee on NPDRS Generic Recovery Plan Project comprised of Drs. N. McRoberts (UC Davis), C. Thomas (UC Davis), J. Stack (K-State), J. Brown (UArizona), R. Martyn (Purdue), and F. Nutter (Iowa State) demonstrated that selected criteria can be used to cluster or match known pathogens in a set of existing disease recovery plans and found that there was a good inter-rater agreement on the generic properties of the first 14 completed disease recovery plans.  The results obtained by the Ad Hoc Committee indicated that the set of clustering criteria will guide scientists or lead authors in writing new recovery plans based on those generic properties with significant robustness of clustering criteria for both intra- and inter-rater agreement.

The research work of the Ad Hoc Committee will be submitted for publication to the Plant Disease journal as a feature article and is currently under revision.  A research paper or special report will also be submitted in the Fall of 2015 per recommendation of the reviewers with the details on the analysis and results.

Drs. McRoberts and Thomas proposed a Phase III Project to complete the cluster analysis by obtaining a ‘Gold Standard’ scoring for existing newly developed recovery plans including the proposed recovery plan for diseases caused by phytoplasmas. 

IV.                Dr. M. Hughes of the University of Florida gave an update on the online publication of the ‘Recovery Plan for Laurel Wilt on Redbay and Other Forest Species Caused by Raffaelea lauricola and Disseminated by Xyleborus glabratus’.  This will be the first recovery plan to be published sometime in the Fall of 2015 at Plant Health Progress of APS, a peer-reviewed journal of applied plant health.

V.                  New recovery plans will be developed for FY2016 and based on the Emerging Diseases and Pathogens Committee Meeting on August 2, 2015 (8:30-10am), the Cucumber Green Mottle Mosaic Virus, Plantago Asiatica Mosaic Virus in lilies and solanaceous crops, and wheat flag smut were mentioned.  Dr. N. Harrison of the University of Florida will take the lead to develop a recovery plan for phytoplasma involving six diseases – apple proliferation, European stone fruit yellows, flavescence doree, pine witches’ broom, palm lethal yellowing, and Australian grapevine yellows.

VI.                A discussion on the Guidelines for Updating Recovery Plans was initiated by Drs. D. Fravel and J. Fajardo.  A suggestion was raised by Dr. R. Bulluck of USDA-APHIS on the existence of a preamble before the Executive Summary of a recovery plan.

VII.              Adjournment


Meeting Minutes, August 10, 2014

The National Plant Disease Recovery System (NPDRS) Meeting Summary

August 10, 2014 (Sunday), 8-9:30 pm

Hilton Hotel, Marquette V

 I. Introductions

 II. A proposal for sponsoring webinars in cooperation with APS on the newly developed recovery plans in 2014-15 was presented by Julius Fajardo (USDA-OPMP).  The proposed webinars will be planned to be conducted in the first or second quarter of 2015 as an awareness and educational effort not only to the scientific community but also to policy makers, consultants, growers, and commodity groups.

 III. Jim Stack (Kansas State University) recommended that few of the recovery plans that are currently impacting US agriculture, natural resources and trade should be reached out to stakeholders through publication at the Plant Health Progress of APS or any peer-reviewed journals like Plant Disease.  This recommendation will be taken into consideration and should encourage lead authors in the academic community to incentivize their time and efforts.

 IV. Deb Fravel (USDA-ARS) suggested that a mechanism to fill in the research gaps in the recovery plan per GAO audit should be put in place.  Lead authors and contributors in the recovery plan should provide inputs in identifying what research activities had been conducted, are being conducted and will be conducted to compare with those of USDA-ARS research studies.

 V. Updates on the newly developed recovery plans including the matrix model project were formally presented with slides by the following:

            A.   Matrix Model: Generic Recovery Plans

                        1.  Carla Thomas, University of California-Davis

                        2.  Neil McRoberts, University of California-Davis

            B.  New Recovery Plans

                        1.   Cowpea mild mottle virus (Judy Brown, University of Arizona)

                        2.   Citrus black spot (Megan Dewdney, University of Florida)

                        3.   Potato zebra chip (Charlie Rush, Texas A&M University)

 VI. Updates on old and completed recovery plans were provided by:

                        1.  Laurel wilt of redbay (Jason Smith, University of Florida)

                        2.  Plum plox virus (Marc Fuchs, Cornell University)

                        3.  Ug99 stem rust of wheat (Erick De Wolf, Kansas State University)


Meeting Agenda, April 15-16, 2013, Falls Church, VA

Updates: Federal Agency Activities Relevant to HSPD-9
  USDA-APHIS – R. Bulluck
  USDA-ARS – D. Fravel 
  USDA-FS – K. Britton 
  USDA-NIFA – M. Draper
  EPA – D. Rosenblatt
  FBI – N. Barnaby

Domestic Programs and Activities to Response & Recovery Plans 
  National Plant Microbial Germplasm System - Status and Future Prospects – R. Bennett
  Information Technology and Data Management Tools – K. Suiter
  Communication and Coordination Plans – T. Murray
  Plant Biosecurity Programs and Infrastructure – R. Hammerschmidt

International Programs Relevant to Response & Recovery Plans
  New Pest and Pathogen Threats to Tree Forests and the UK Response – J. Webber

USDA–OPMP Recovery Plans
  Orientation & Background on Recovery Plans – J. Fajardo
  Thousand Cankers Disease (Geosmithia spp.) of Walnut – N. Tisserat
  Citrus Leprosis Virus – R. Brlansky
  Bacterial Leaf Blight & Streak (Xanthomonas oryzae) of Rice – J. Leach
  Blast (Magnaporthe oryzae) of Wheat – B. Valent
  Root Knot & Cyst Nematodes – T. Powers
  Cotton Leaf Curl Disease – J. Brown

APHIS PPQ Response Guidelines 
  Introduction & Background on Response Guidelines – R. Bulluck
  Prioritization of New Pest Response Guidelines – G. Cave
  Chalara fraxinea (Ash Dieback) – W. Danquah
  Pissodes castaneus (Small Banded Pine Weevil) – K. Maguylo
  Tremex fuscicornis (Tremex Wood Wasp) – J. Hardin

The Martyn or Matrix Model
  The Development of Generic Recovery Plans: The Cluster Analysis Model – R. Martyn
  Defining and Validating the Model – N. McRoberts
  Potential Applications – How Can the Model Be Put Into Practice? – C. Thomas

Recovery Plan Updates
  Huanglongbing Recovery Plan Update – C. Hollingsworth
  Policies & Frequency – J. Fletcher

New Plan and Guideline Proposals & Prioritization
  New Recovery Plans – D. Luster
  Consideration for New Recovery Plans: Groups of Pathogens
         Ca. Liberibacter spp. Vectored by Psyllids – J. Brown
         Vector Transmitted Phytoplasmas – J. Fletcher
         Plant Pathogens Infecting Human Hosts – S. Tolin 
         Viroids – S. Tolin
  New Response Guidelines – R. Bulluck

Report and Minutes


Summary/Minutes, March 6-8, 2011,  Dallas, TX


Attachment 1. Meeting Agenda
Attachment 2. Lewis HHS NIH
Attachment 3: Britton USDA FS
Attachment 4. Rosenblatt EPA OPP
Attachment 5. Fravel USDA ARS
Attachment 6. Thomas NPDN Diagnostics
Attachment 7. Fletcher NIMF Forensics
Attachment 8. Smith NPDRS Strategic Plan
Attachment 9. Britton ITAP-PP Know New Pathogens
Attachment 10. Bennett National Culture Collections
Attachment 11. Smith Recovery Plan Guide

Attachment 12. Mayfield Laurel Wilt of Redbay
Attachment 13: Vidaver Rathayibacter Poisoning
Attachment 14: Hartman Red Leaf Blotch of Soybean
Attachment 15. Murray Stem Rust of Wheat (Ug99)
Attachment 16. Bulluck Response Guidelines Guide
Attachment 17. Maguylo Phytophthora spp.
Attachment 18. Kamminga Red Palm Weevil
Attachment 19. Costanzo Huanglongbing (HLB)
Attachment 20. Martyn Matrix System
Attachment 21. Nutter Pathogen Matching System


Summary/Minutes, October 27-28, 2008, San Antonio, Texas


Summary, April 22-24, 2007, St. Louis, MO


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Summary, April 13-14, 2006 Memphis, TN

Recovery Plans