Soybean Fungicide Research Results

[JimMeade]

Iowa State says there is some fungicide resistance and both newer and multiple modes of action products give better results.

https://crops.extension.iastate.edu/cropnews/2019/02/evaluation-foliar-fungicides-soybeans-2018

"Average yield in untreated plots was 54.9 bu/A. Yield response to fungicide was statistically significant, and the yield response ranged from 0.8 to 7.4 bu/A "

[sw363535]

Makes more sense in beans. With their long maturity pod set.
Corn is often well into black layer before leaf loss is yield damaging. And so dependent on August weather.