​​Seedborne Pathogens of Soybean

September 2008 | 17 min., 23 sec.
by Gary P. Munkvold
Iowa State University

Summary

​Like most crops, soybeans are vulnerable to diseases caused by seedborne pathogens. These diseases can cause significant yield loss, reduce seed quality, and/or create obstacles to seed export because of phytosanitary concerns. Many microorganisms can be seedborne, but relatively few of them have a consistent economic impact. In this presentation, we will discuss how microorganisms can have different types of associations with seeds and which ones are important in soybeans. The presentation also briefly covers the methods used to detect some of the seedborne pathogens in soybean and a few management tips.

About the Presenter

Gary P. MunkvoldGary P. Munkvold is Associate Professor of Plant Pathology and Seed Science Endowed Chair at Iowa State University. He earned a PhD in Plant Pathology from the University of California-Davis, in 1992, and has worked in research, extension, and teaching in the Plant Pathology Department (1993-2002) and Seed Science Center (2006) at Iowa State University. His current research program focuses on pathogens that are seedborne or affect seed production, especially in agronomic crops. He also is responsible for teaching in seed pathology. From 2003-2006, he was Research Coordinator for the Pathology, Entomology, and Seed Science group at Pioneer Hi-Bred, International, Inc. in Johnston, IA, with global responsibilities for coordinating and improving disease and insect resistance evaluation of Pioneer corn hybrids. Dr. Munkvold has conducted research on toxigenic Fusarium species, interactions between insects and plant pathogens, and management of gray leaf spot of corn. He has authored or co-authored more than 40 scientific papers in peer-reviewed journals, more than 200 extension articles and publications, and several book chapters; he has been an invited speaker at numerous national and international conferences. Dr. Munkvold was named as ISU’s first Seed Science Endowed Chair in 2006. He received the Novartis award in 2000 from the American Phytopathological Society, and the ISU Extension New Professional Award in 1997.​​

Contact Information:
Email: munkvold@iastate.edu

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