Insect Alert For

Black Cutworm

Risk Level:
Moderate Risk
Affected Area:
Full page
Alert Details

A cold front will begin making more of a push southeast over the next couple days. Before it does so, however, another night of rather focused southerly winds is likely especially across the upper Mississippi River valley and northern/central corn-growing region. Moderate black cutworm migration risks are predicted across portions of Iowa, Minnesota, Wisconsin, and Illinois into tomorrow with Low risks as far east as I-75 in Michigan and western Ohio. The parent low pressure system connected to the low really begins to fill and as the cold front moves east, it also weakens so southerly winds east of the front by later tomorrow into Saturday are much less, so only Low migration risks are focused mainly across the southern Great Lakes and eastern corn-growing region mainly east of the Mississippi River and into portions of Missouri. Little to no risk is then predicted into early next week, but growers are encouraged to monitor traps and take note of any new flights, as some corn planted now (or in the past week or so) may be at risk of black cutworm infestations from new generations.