Insect Alert For

Corn Earworm

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

Low corn earworm migration risks continue in the forecast for the next few days as persistent south to southwest winds continue to blow to the south of a cold front that will be sagging southeast through the corn-growing region between now and into Sunday. Low risks are predicted tonight from Kansas, Missouri, and Kentucky as far north as southeast South Dakota, southern Minnesota and Wisconsin, and east into lower Michigan and also southern Ontario, Canada. As the front moves southeast tomorrow into tomorrow night, the risk focuses mainly along and southeast of a line from central Kansas northeast to Des Moines, Iowa and Milwaukee, Wisconsin. No risk is predicted after midday Sunday as the front moves southeast and northwest flow returns to much of the corn-growing region. Despite a favorable weather pattern for migration, only Low risks are in the forecast given favorable/attractive crop stages in mid-south and southern source regions as well as crops generally being further behind and not at a susceptible stage to damage across a good portion of the corn-growing region. Certainly, those growers with crops and fresh market/vegetables at a critical stage to damage now should monitor fields and traps and take appropriate action should moths appear and if they meet or exceed threshold values.