Insect Alert For

Black Cutworm

Risk Level:
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Alert Details

Low pressure will continue to develop and move northeast through the upper Midwest over the next few days. A cold front will trail to the south of the low pressure system, and will divide south to southwest winds to its east from west to northwest winds on the west side of the front. Isolated black cutworm moth flights will be possible to the east of the front and especially across the northern portion of the corn-growing region where corn planting progress is lagging and where some moth flights now may result in larvae damage especially into early-mid June. The low risk area tonight into tomorrow morning is focused across eastern Iowa, northern Illinois, Wisconsin, and eastern Minnesota. As the cold front moves east tomorrow night into Sunday, the risk shifts east and mainly focuses from northern Illinois and eastern Wisconsin east into the southern Great Lakes region and eastern corn-growing region. Growers should continue to be vigilant about scouting for black cutworms as flights earlier this spring may be resulting in some cutting especially in newly-emerged corn.