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ARS Home » Midwest Area » Urbana, Illinois » Soybean/maize Germplasm, Pathology, and Genetics Research » Research » Publications at this Location » Publication #314781

Title: From select agent to established pathogen: The response to Phakopsora pachyrhizi (soybean rust) in North America

item KELLY, HEATHER - University Of Tennessee
item DUFAULT, NICHOLAS - University Of Florida
item Walker, David
item ISARD, SCOTT - Pennsylvania State University
item SCHNEIDER, RAYMOND - Louisana State University
item GIESLER, LOREN - University Of Nebraska
item WRIGHT, DAVID - University Of Florida
item MAROIS, JAMES - University Of Florida
item Hartman, Glen

Submitted to: Phytopathology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 3/9/2015
Publication Date: 7/23/2015
Publication URL:
Citation: Kelly, H.Y., Dufault, N.S., Walker, D.R., Isard, S.A., Schneider, R.W., Giesler, L.J., Wright, D.L., Marois, J.J., Hartman, G.L. 2015. From select agent to established pathogen: The response to Phakopsora pachyrhizi (soybean rust) in North America. Phytopathology. 105(7):905-916.

Interpretive Summary:

Technical Abstract: The pathogen causing soybean rust, Phakopsora pachyrhizi Syd., was first described in Japan in 1902. The disease was important in the Eastern Hemisphere for many decades before the fungus was reported in Hawaii in 1994, which was followed by reports from countries in Africa and South America. In 2004, P. pachyrhizi was confirmed in Louisiana making it the first report in North America. Based on yield losses from countries in Asia, Africa, and South America, it was clear that this pathogen could have a major economic impact on the yield of 30 million ha of soybeans in the United States. The response by agencies within the United States Department of Agriculture, industry, soybean check-off boards, and universities was immediate and complex. The impacts of some of these activities are detailed in this review. The net result has been that the once dreaded disease, which caused substantial losses in other parts of the world, is now more fully understood and effectively managed in the United States. The disease continues to be monitored yearly for changes in spatial and temporal distribution so that soybean growers can continue to benefit by knowing where soybean rust is occurring during the growing season.