Insect Alert For

Black Cutworm

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

A strong low pressure system will continue to meander and develop in the Dakotas with high pressure staying anchored over the Carolinas. In between these two pressure systems, strong and gusty southerly winds are likely and may bring the potential for scattered black cutworm moth flights into a large portion of the central and northern corn-growing region over the next couple days. Moderate migration risks are predicted tonight into tomorrow from Nebraska and South Dakota east into Minnesota, Iowa, Wisconsin, Illinois, Indiana, and southwest lower Michigan. Low risks extend as far east as southern Ontario, Canada and much of Ohio. Moderate risks continue tomorrow night into Sunday a little further east as a cold front begins to inch further east later tomorrow. The Moderate risk area focuses from portions of Missouri into eastern Iowa, far southeast Minnesota, Wisconsin, Illinois, Indiana, lower Michigan, Ohio, and far southwest Ontario, Canada. By late Sunday into Monday, the cold front makes a bigger push to the east and largely east of the corn-growing region, thus little to no risk is in the forecast after Sunday. Growers should monitor traps over the next week and document when flights occur to calculate potential emergence days next month and beyond.