Insect Alert For

Corn Earworm

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

Low corn earworm migration risks are in the forecast the next three nights as a low pressure system and cold front push from west to east across the corn-growing region. Somewhat modest south to southwest winds are predicted to the east of the front along with scattered areas of precipitation, and these features may coincide to produce primarily isolated moth flights the next three nights. The risk tonight into tomorrow morning is initially across northern Kansas into Missouri, eastern Nebraska, far southeast South Dakota, southern Minnesota, and Iowa. By tomorrow night, the risk shifts east and includes fields mainly between I-35 and I-75, or from eastern Kansas and Missouri into eastern Iowa, far southeast Minnesota, central and southern Wisconsin, Illinois, Indiana, western Ohio, and southwest lower Michigan. The risk shifts mainly east of I-57 from eastern Illinois into Indiana, Ohio, southern lower Michigan, and southwest Ontario, Canada by Saturday night into Sunday morning. Growers with crops at susceptible stages to corn earworm damage should continue to monitor traps closely over the next week and also scout fields as recent moth flights have occurred in scattered areas of the corn-growing region.