Syzigium cumini plant heavily infected by Puccinia psidii at Waimea Valley Park, Oahu, Hawaii
Rodrigo Neves Graça and Acelino Couto Alfenas (a), Janice Uchida and Kris Kadooka (b), Phil Cannon (c), and Ned Klopfenstein (d) (a) Universidade Federal de Viçosa, Dept. of Plant Pathology, Campus UFV, Viçosa-MG, CEP 365700-00, Brazil (b) University of Hawaii, Dept. of Plant and Environmental, Protection Services, 3190 Maile Way, Honolulu, HI 96822 (c) USDA Forest Service, 1323 Club Drive, Vallejo, CA 94592 (d) USDA Forest Service, Forestry Sciences Laboratory, 1221 South Main, Moscow, ID 83843Email: rnevesg@yahoo.com.br
Host: Syzigium cumini (Java plum)Disease name: Guava or eucalypt rustPathogen name: Puccinia psidii G. Winter
Puccinia psidii causes rust disease on many species in the Myrtaceae family. First reported in 1884 on guava in Brazil, the rust has since been detected in several countries in South and Central America, the United States (Florida, California, and Hawaii), and most recently Japan. Of present concern is the introduction of new pathogen races to Hawaii, where it infects several invasive Myrtaceae species as well an endemic tree species known as ohia (Metrosideros polymorpha), which is the dominant species in roughly 80% of Hawaii's remnant native forests.
APS publication number: FI00128.
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