Insect Alert For

Corn Earworm

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

Strong south to southwest winds may continue to result in scattered corn earworm moth flights into the corn-growing region from sources in the mid-south and southern states over the course of the next few days as a cold front slowly pushes east across the area. Moderate corn earworm migration risks are in place tonight into Friday morning from far eastern Kansas, Missouri, and eastern Iowa into southern Wisconsin, Illinois, southern Michigan, Indiana, western Ohio, and Kentucky. As the cold front moves east, the Moderate risk area also shifts to the east and is primarily focused east of I-57 in eastern Illinois and south of I-94 in southern Michigan. Portions of southwest Ontario, Canada are also in the Moderate risk for Friday night into Saturday morning. Eventually, the entire weather system moves to the northeast, and only a Low migration risk remains across the eastern Midwest by Saturday night into Sunday. Farmers across much of the corn-growing region should monitor host plants for signs of corn earworm moths since corn has not reached a stage of critical growth as of yet.