Insect Alert For

Corn Earworm

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

Corn earworm migration is predicted on an isolated basis for the next five days as a persistent area of low pressure remains across the Plains states and high pressure drifts southeast from the Great Lakes into the eastern seaboard. In between the two pressure centers, southerly winds may result in isolated moth flights northward from source regions in Texas initially but eventually further east into Arkansas and Louisiana. Low risks are in the forecast tonight into Saturday morning across portions of Kansas and Nebraska, then further east and north into southern South Dakota, Minnesota, the western two-thirds of Iowa, and Missouri by Saturday night into Sunday morning. By late in the holiday weekend and early next week, the risk spreads as far east as the southern Great Lakes region and eastern Midwest as south to southwest winds advance further east. Growers in the Low risk area should especially monitor host plants for signs of new corn earworm moths by next week.