Insect Alert For

Corn Earworm

Risk Level:
No Risk
Affected Area:
No risk Full page
Alert Details

After a continued break in the migration risk tonight into tomorrow morning, risks return to the forecast as south to southwest winds increase especially across the western and central corn-growing region as high pressure slides off to the east. By Saturday night into Sunday morning, Moderate migration risks are in the forecast from eastern Nebraska into Iowa and north into far southeast South Dakota and southern Minnesota. A corridor of rather strong south to southwest winds may result in scattered corn earworm moth flights from source regions in Oklahoma, far western Arkansas, and potentially southern Kansas into the Moderate risk area. Low risks extend north to near I-94 and east into Illinois and Wisconsin. Low risks then focus mainly southeast of a line from near Dodge City, Kansas to Chicago, Illinois and on east into southern Ontario, Canada by Sunday night into Monday morning as a cool front pushes southeast. Low risks then focus back across the Plains states initially on Monday night into Tuesday, and then eastward to near the Mississippi River by Tuesday night into Wednesday as southerly winds increase in the Plains as a warm to hot air mass spreads north and east. Growers located in the Moderate risk area are especially encouraged to monitor traps and take appropriate action, if needed, next week.