Insect Alert For

Corn Earworm

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

A cold front will push southeast through much of the corn-growing region by the end of this weekend. Before the front passes through, however, south to southwest winds are expected to blow north from source regions across the mid-south and may lead to scattered corn earworm moth flights especially into far eastern Nebraska, Iowa, northern Illinois, and far southern Wisconsin tonight into tomorrow morning. Moderate risks are in the forecast across this region with Low risks just slightly north of the Moderate risk area and east to the Illinois/Indiana border. Low risks follow the front east tomorrow night into Sunday morning, mainly to the east of I-55 in central Illinois. A break in migration chances is in the forecast until next Tuesday night into Wednesday as a period of northwest flow and resultant cooler/drier conditions returns. Low risks are then back in the forecast by mid-week mainly west of I-35 as the next weather system develops and spreads its southerly winds back into the Plains and western corn-growing region.