Insect Alert For

Corn Earworm

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

Corn earworm migration risks will continue for the next three nights as a favorable weather pattern for at least isolated to scattered migrations will remain in place across the corn-growing region. Moderate risks are predicted tonight into tomorrow morning across portions of Kansas, Missouri, Nebraska, Iowa, Illinois, South Dakota, Minnesota, and Wisconsin as south to southwest winds will continue to provide an insect pump from source regions in the mid-south and precipitation may result in corn earworm drop-out across the Moderate risk area. Low risks extend as far east as the southern Great Lakes and eastern Midwest. Low risks continue tomorrow night into Wednesday morning across much of the same region from the Plains eastward into the southwest Great Lakes although a re-focusing a little further west is expected during this time. As a cold front finally pushes through the corn-growing region by late week, Low risks will be shunted further east with the front with the Great Lakes region and eastern Midwest favored for isolated flights Wednesday night into Thursday. No risk is predicted thereafter as northwest winds and high pressure are expected to build into much of the corn-growing region by that time.