Crown rot in stem

Crown and Stalk Rot Sampling Tips

August 26, 2021
As you continue to scout fields late in the season, it is important to collect the right kind of sample to ensure proper diagnosis.

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corn stalks showing stalk rot

Check Stalk Quality of Corn Going into Harvest

September 16, 2020
Poor stalk quality can cause stalk lodging and breakage, leading to harvest difficulties. This could cause yield loss and create issues of volunteer corn for next year's crops due to ears lost from lodged corn.

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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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Left photo showing corn stalk breakage from Gibberela stalk rot and right photo showing corn stalk damage from Fusarium stalk rot.
(L-R) Figure 1. Lodging and stalk breakage, as well as stalk discoloration, are symptoms of stalk rot diseases. (Photo by Terra Hartman) Figure 2. Stalk rot diseases commonly cause discoloration of the stalks and degradation of the white pith between vascular bundle strands. (Photo by Kyle Broderick)

Stalk Rot Diseases in Nebraska Corn Fields

September 13, 2018
Knowing the risk factors for stalk rot can help you evaluate those fields first and prioritize your harvest schedule accordingly. Submitting plant samples and determining which stalk rot is present can help you better prevent or manage it in future years.

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