This past growing season was unique because different regions in Iowa experienced different soybean diseases. Several of the diseases are seedborne and can cause discoloration of the seeds. Some growers may want to save their own seed this year to reduce production costs, as indicated by questions I have received on seed quality concerning seedborne diseases. The following seedborne diseases were reported as production problems in Iowa: white mold, Phomopsis diseases, Cercospora leaf spot, and bean pod mottle virus. This article discusses how to handle infected soybean seeds.
Iowa State University
Yang, X. B., "Infected soybean seeds" (2000). Integrated Crop Management News. 2015.
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