Fungicide Resistance

Frogeye leaf spot
Figure 1. Frogeye leaf spot on soybean

Frogeye Leaf Spot in Northeast Nebraska

August 19, 2019
Moderate to severe frogeye leaf spot is being reported on soybean in northeast Nebraska. Pathogen resistance to QoI fungicide is suspected in two fields. If you suspect resistance, contact the author for possible testing.

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Frogeye leaf spot
Frogeye leaf spot

Frogeye Leaf Spot Resistance Increasing in Soybean

February 21, 2018
While not close to Nebraska yet, fungicide-resistant frogeye leaf spot has been confirmed in eastern Iowa. Ward off problems here by implementing integrated management practices.

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