Insect Alert For

Corn Earworm

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Alert Details

Low corn earworm migration risks continue in the forecast the next two nights as a rather persistent weather pattern remains across the corn-growing region. South to southeast winds are expected to continue west of a high pressure center over the eastern corn-growing region. While not overly strong, these southerly winds may allow some isolated corn earworm moth flights as the pattern has been in place for several days and there has also been some precipitation in the area allowing for insect drop-out. Best chances are mainly west of the Mississippi River tonight into tomorrow, and then mainly along/west of the US 65 corridor from western Missouri into central Iowa tomorrow night into Friday, and as far north as central and southern South Dakota and Minnesota. Little to no risk is predicted by the weekend as high pressure is expected to move further west and lessen the winds across the Plains by that time.