She also recommends using resistant hybrids.
Nothing can really be done once stock once stalk rot is identified in a field, she says. About the only management tip is to identify fields with the worst stalk rot disease and harvest them first.
In drought-damage fields, aspergillus ear rot can occur, as it did in some locations in2012. The fungal species that cause it can also produce aflatoxin, which can be toxic to livestock and even humans who consume contaminated grain.
"The vast majority of Nebraska's corn had safe levels of aflatoxin in 2012," she adds.
For more information on stalk rot diseases in corn, these UNL Extension publications can help:
•Corn Diseases Profiles II: Stalk Rot Diseases, at www.ianrpubs.edu/sendIt/ec1868.pdf
•Common Stalk Rot Diseases of Corn at www.ianrpubs.unl.edu/sendIt/ex1898.pfd
•CropWatch at cropwatch.unl.edu