Insect Alert For

Corn Earworm

Risk Level:
Low
Affected Area:
Full page
Alert Details

An active weather pattern is predicted to continue across at least a portion of the corn-growing region for the remainder of this week. As a result, Low corn earworm migration risks are also in the forecast on a nightly basis as south to southwest winds will bring at least a chance for some isolated moth flights into a portion of the region. Low risks are predicted tonight into tomorrow morning across Kansas and Nebraska in response to a developing low pressure system in the High Plains. Low risks continue tomorrow night into Thursday mainly across the southeastern half or so of the corn-growing region as this same low moves northeast and a cold front trails from northeast to southwest south of the front. The area of concern tomorrow night is southeast of a line from south central Kansas to Des Moines, Iowa to Green Bay, Wisconsin. Low risks then focus southeast of a line from near Wichita, Kansas to Chicago, Illinois Thursday night into Friday as the front continues to advance southeast. Little to no additional risk is predicted by the weekend as winds become lighter and generally unfavorable, but growers with crops at critical growth stages are encouraged to monitor traps and scout fields.