Insect Alert For

Corn Earworm

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

An active weather pattern is expected to continue across much of the corn-growing region until a cold front finally pushes through the central part of the country by early next week. Up until that time, however, Low corn earworm migration risks will remain in the forecast on a periodic basis, especially across the northern corn-growing region where some processors and fresh market growers still have crops at susceptible stages of damage. Low risks are predicted tonight into tomorrow morning from northeast Nebraska and far southeast South Dakota into northern Iowa, southern Minnesota, Wisconsin, and far northwest Illinois as southwest winds may result in a few mainly short-distance moth flights. Low risks are then in the forecast initially west of I-35 by Friday night into Saturday morning as the next low pressure system and cold front develop across the High Plains and into southern Canada. This front is expected to slowly march east through the weekend and into early next week, so Low risks are found in advance of the front across the Mississippi River valley Saturday night into Sunday and then across the southern Great Lakes Sunday night into Monday.