Insect Alert For

Corn Earworm

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

Corn earworm migration risks will be present across much of the corn-growing region in the next week as a favorable weather pattern for migration may allow isolated to scattered moth flights to occur. Low risks are present primarily across the Plains states tonight as southerly winds increase in this region. The risk spreads northeast for Thursday night and Friday morning and includes fields as far north as South Dakota, Minnesota, and Wisconsin and east into Illinois. South to southwest winds should increase thereafter and a Moderate risk is predicted across portions of Kansas, Missouri, Nebraska, South Dakota, Minnesota, and Iowa by Saturday night into Sunday with Low risks in the extended period as far north as South Dakota, Minnesota, Wisconsin, and Michigan and east into Ohio. While most corn is not at a stage susceptible to damage at this time, other host plants and also fresh-market growers should pay close attention to their fields in the coming week given the rather persistent southerly wind pattern expected that may allow moth flights.