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Humid, wet conditions increase risk for foliar diseases in soybeans
date:Aug 01, 2013
fields surrounded by trees may be more prone to foliar diseases, Schnebly says.

The risk of foliar diseases also increases when a field is continuously planted with soybeans, because foliar pathogens overwinter in soybean stubble. The more stubble that exists, the greater the chance for foliar disease to appear the next year.

To help manage frogeye leaf spot and septoria brown spot, application of a foliar fungicide is recommended if disease levels exceed thresholds. Thresholds can be found by

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