Insect Alert For

Corn Earworm

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

The weather pattern across at least a portion of the corn-growing region may undergo some changes in the next five to seven days. While the heat dome is expected to hold across the southwestern corn-growing region, it may be suppressed further southwest as a low pressure system moves along the United States/Canada border this weekend and into next week. The result will be the possibility for southerly wind flow to return to especially the western corn-growing region this weekend and into next week which may lead to isolated/scattered corn earworm flights. Low migration risks are in place tonight mainly across southern South Dakota, Nebraska, and Kansas. The risk area expands only slightly east into far western Iowa and Missouri Saturday night and Sunday morning. By late in the weekend and early next week, Moderate risks are in place across Kansas, Nebraska, southern South Dakota, and also into far southwest Minnesota, western Iowa, and far western Missouri as southerly winds increase across this area and remain persistent for potentially several days. Precipitation chances may also increase during this time which may lead to increased insect drop-out. Low risks extend as far east as Illinois and north into Minnesota and far southwest Wisconsin by early next week.