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Soybean Rust

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Soybean rust -
Soybean rust damage that appears on upper leaves of soybean plants when advanced. - Reid Frederick USDA, Agricultural Research Service
Scientific Name: 
Phakopsora pachyrhizi, Phakopsora meibomiae (CABI)
Common Name: 
Soybean rust
Native To: 
P. pachyrhizi first appeared in Asia (Schnepf 2005); P. meibomiae is native to South and Central America and the Caribbean (Frederick et al. 2002)
Date of U.S. Introduction: 
P. pachyrhizi was first discovered in Hawaii in 1994, and in the continental U.S. in 2004; P. meibomiae was discovered in Puerto Rico in 1976 (Bonde et al. 2006)
Means of Introduction: 
P. pachyrhizi is thought to have been carried by wind to the U.S. from South America during the 2004 hurricane season (Schnepf 2005)
Disease of soybean and other legumes; P. pachyrhizi can reduce soybean yields up to 80% (Schnepf 2005); P. meibomiae is less virulent but has a broader host range (CABI)

Distribution / Maps / Survey Status

USDA. Integrated Pest Management - Pest Information Platform for Extension and Education.

USDA. APHIS. Cooperative Agricultural Pest Survey. National Agricultural Pest Information System.


University of Georgia. Center for Invasive Species and Ecosystem Health.


Google. YouTube; Oklahoma State University. SUNUP TV. 

Selected Resources

The section below contains highly relevant resources for this species, organized by source. Or, to display all related content view all resources for Soybean Rust.

Federal Government
USDAARS. Systematic Mycology and Microbiology Laboratory.
USDA. Economic Research Service.
Note: Webarchive; provides economic background information
International Government

Canadian Food Inspection Agency.

State and Local Government

Minnesota Department of Agriculture.

Florida Department of Agriculture and Consumer Services. Division of Plant Industry.

See also: Plant Industry Pest Alerts for more pests/diseases

North Carolina State University. Cooperative Extension.

Clemson University. Extension Service.
Published by: North Carolina State University Cooperative Extension; University of Georgia Cooperative Extension; Clemson University Cooperative Extension; Virginia Cooperative Extension; South Carolina Soybean Board.
South Dakota State University. Agricultural Experiment Station; Cooperative Extension Service.

University of Arkansas. Cooperative Extension Service.

Ohio State University. Extension.

University of Minnesota. Extension.

University of Missouri. Extension.

University of Tennessee. Agricultural Sciences and Natural Resources.

American Phytopathological Society. Plant Health Instructor.