Insect Alert For

Corn Earworm

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

A very persistent and rather active weather pattern is expected to remain in place across much of the corn-growing region right into next weekend. As a result, south to southwest winds are predicted to continue to blow north from source regions especially west of the Mississippi River into the corn-growing region, and these winds may result in some isolated corn earworm moth flights. With high pressure remaining in place across the southeast United States and low pressure remaining anchored across the northern Plains and northwest portion of the upper Midwest, scattered to occasionally more organized areas of showers and thunderstorms are likely along and to the east of a cold front in the Plains. These precipitation areas may allow any insects to drop out near or in these regions. Given the time of year and crop stage, corn earworms may be less inclined to fly given more attractive host crops in their present location and being in between generations right now. Low risks are in place from Kansas and Nebraska east into Indiana and Ohio, and as far north as southeast Minnesota, Wisconsin, and southwest Michigan. Growers all across the risk area should monitor for the potential for isolated moth flight increases in the next week, but the threat to crops right now is minimal, if any.