Insect Alert For

Corn Earworm

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Alert Details

Low corn earworm migration risks are predicted for the next couple nights as another cold front moves southeast through the corn-growing region. South to southwest winds immediately southeast of this front may pose an additional isolated corn earworm migration risk, primarily over shorter distances versus long-distance flights. Low risks are predicted tonight into tomorrow across portions of Nebraska, South Dakota, Minnesota, Iowa, and Missouri, and as the front moves southeast tomorrow night into Wednesday, the risk shifts southeast further into northeast Missouri, Illinois, Indiana, southern lower Michigan, and into Ohio. Growers with crops still at a susceptible stage to corn earworm damage, especially processors and fresh market growers in the northern corn-growing region, are encouraged trapping and scouting efforts until harvest as new moth flights may have occurred in the past several days to week in some areas. Little to no migration risk is predicted the rest of the week after Wednesday.