Insect Alert For

Corn Earworm

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

A strong cold front is predicted to pass through much of the corn-growing region in the next couple days. South to southwest winds are expected east of the front and precipitation should be widespread along the front which may serve as an insect drop zone region. Given these factors, a Moderate corn earworm migration risk is predicted for portions of Kansas, Nebraska, Missouri, Iowa, Minnesota, Wisconsin, Illinois, Indiana, and Michigan late this evening into early Thursday morning. As the front moves east during the day Thursday into Thursday night, the Moderate risk area also moves east and includes portions of Indiana, Kentucky, Ohio, Michigan, Pennsylvania, New York, and Ontario, Canada. Growers across much of the corn-growing region (especially in central and northern fields where crops may still be at susceptible stages to corn earworm damage) are urged to monitor for potential corn earworm activity in the coming days. Trap counts remain high in some mid-south and southern Midwest source regions so the possibility for another scattered moth flight is present.