Insect Alert For

Corn Earworm

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

Low corn earworm migration risks are predicted across the Plains states and portions of the western Midwest tonight into Tuesday morning as the next low pressure system moves east into the Plains. Southerly winds east of a cold front may produce isolated moth flights especially across Kansas and Nebraska but potentially as far north as I-90 in South Dakota and Minnesota as well as into western Iowa and Missouri. Compared to last week, however, this system is weaker and winds are not expected to be as strong, thus just a Low risk is predicted. As the weather system moves northeast, the risk area spreads east as well and fields as far east as I-57 in Illinois and north to the US 20 corridor may see isolated moth flights Tuesday night into Wednesday morning. After that, no risk is predicted due to a lack of stronger southerly winds. Growers across much of the corn-growing region should especially monitor host plants right now as some scattered moth flights may have occurred last week.