Insect Alert For

Corn Earworm

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

Remnants of Tropical Storm Barry are now moving through the mid-south region of the country, and may pose an isolated corn earworm migration risk especially from southeast Missouri and Kentucky northeast into eastern Illinois, Indiana, and Ohio over the next 24 hours or so. Southerly winds to the east of the storm’s track may lead to some corn earworm moths flying north into the aforementioned region overnight tonight into tomorrow morning. Thereafter, the focus will be on increasing southerly to southwesterly flow by late week into next weekend as a temporary heat dome sets up shop over much of the corn-growing region. Additional heat unit accumulations are letting the late-planted corn crop catch up in comparison to a more average year, so Low migration risks are in the forecast for much of the late week into weekend period to account for potential moth flights especially from Texas and the mid-south region west of the Mississippi River. Fields in Kansas, Nebraska, South Dakota, southern Minnesota, Iowa, Missouri, Illinois, Wisconsin, Indiana, western Ohio, Kentucky, and lower Michigan are all included in the isolated, Low migration risk by the end of the week and into the weekend. Growers with crops at or near susceptible stages to damage from corn earworms, including fresh market and vegetable growers, should monitor traps and scout fields over the next week or so as at least some new migrants are expected.