Physoderma brown spot lesions

Corn Disease Update

January 8, 2020

In 2019, wet weather during the growing season favored the development of numerous corn diseases including Physoderma brown spot, bacterial leaf streak, stalk rot diseases, and ear rot diseases. This update highlights these diseases, the environmental factors that favor their development, and their management.

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Ear rot diseases on three corn ears.
Figure 1. Ear rot diseases in Nebraska corn.

Stalk and Grain Quality Likely to Decline During Wet Weather

October 12, 2018
Stalk and ear rot diseases continue to become more evident in many cornfields across Nebraska where prolonged periods of wet weather have delayed corn harvest.

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