While the hot, dry weather across the Midwest has affected soybean production, it has also negatively affected soybean diseases. In general, there is very little disease across Iowa in soybean. There have been a few fields with Septoria brown spot and Cercospora leaf blight, but it has been a quiet year for soybean diseases.
Iowa State University
Mueller, Daren S. and Bestor, Nathan R., "Mid-season Soybean Disease and Fungicide Update" (2012). Integrated Crop Management News. 150.
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