When corn reaches black layer, the crop should be scouted for stalk and ear rots. Anthracnose stalk rot is apparent in many fields across the state andDiplodia ear rot has been reported. The incidence of corn ear rot should be determined before harvest since ear rot diseases can reduce yield and quality of the corn harvest. Furthermore, some of the fungi that infect corn ears may produce mycotoxins, which are harmful, and can be fatal, to livestock.
Iowa State University
Robertson, Alison E., "Time to Scout for Stalk and Ear Rots" (2008). Integrated Crop Management News. 776.
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