This year's early season rain has increased the risk of soybean disease in Iowa. We knew it was coming and now the waiting is over. For the past month we have seen Septoria brown spot and bacterial blight. This week we identified sudden death syndrome (SDS), frogeye leaf spot, and other diseases for the first time this year.
Iowa State University
Mueller, Daren S. and Mueller, Tristan, "Soybean Diseases Starting to Pop Up" (2015). Integrated Crop Management News. 677.
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