Insect Alert For

Corn Earworm

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

A low pressure system and overall pattern setup more often observed in the winter or early spring months is expected to develop across the corn-growing region over the next several days. Low pressure is likely to develop in the central Plains states and move slowly east along the I-80 corridor as it deepens. Southerly winds are likely just ahead of a trailing cold front south of the low, so there will be an opportunity for at least isolated corn earworm moth migration events but rainfall and a lack of stronger winds precludes any higher risk. Low risks are predicted tonight into tomorrow from Kansas and western Missouri north into Nebraska, western Iowa, and far southeast South Dakota. Low risks then shift east from the I-35 corridor east as far as Illinois tomorrow night into Saturday, and then focus over the southern Great Lakes and eastern corn-growing region late in the weekend and into early next week as the low pressure remains stagnant over the Mississippi River valley.