Insect Alert For

Corn Earworm

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

Isolated to scattered corn earworm moth flights are likely across a large portion of the corn-growing region in the next week as a favorable weather pattern for migration is expected to be in place. Growers with crops at susceptible stages to damage from corn earworms are strongly encouraged to monitor traps and scout fields over the coming week as some areas are likely to see new moth arrivals. Low risks are in place tonight from the Plains states east as far as the I-75 corridor in southeast lower Michigan and western Ohio as the southerly wind regime begins to increase across a broader region. Moderate risks are in the forecast from Kansas and western Missouri north into southeast South Dakota, southwest Minnesota, western Iowa, and eastern Nebraska tomorrow night into Saturday morning, with Low risks extending further east into the southern Great Lakes region once again. Moderate risks expand east nightly from there, with fields as far east as Wisconsin and Illinois potentially seeing scattered moth flights by Saturday night into Sunday. Finally, early next week, Moderate risks focus from northeast Kansas and along/east of the I-35 corridor into lower Michigan, Indiana, and far western Ohio with Low risks into southern Canada. Additional risks are possible next week until a cool front passes mid-late week so stay tuned!