Insect Alert For

Black Cutworm

Risk Level:
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Alert Details

Black cutworm migration risks will remain in the forecast across especially the central and southern portions of the corn-growing region for the next three nights. An active weather pattern will likely continue until we reach the latter half of the weekend which may lead to isolated or even scattered moth flights. Low risks are in place tonight into tomorrow morning mainly from I-57 in eastern Illinois and point east as a cold front moves through the region. Any flights are expected to be isolated tonight. Low risks then focus across the Plains and into Iowa and Missouri, mainly south of I-90, tomorrow night into Friday morning as the next low pressure system develops across the central Plains. Again, only Low risks are predicted at this point as the source region is not expected to be in the most favorable location. Moderate risks are being maintained in the forecast for the Friday night into Saturday morning time frame but have been shifted slightly further southeast due to a further south frontal placement now looking more likely across the southern Great Lakes. The Moderate risk area is found east of a cold front and near/south of a warm front in northeast/eastern Iowa, far southern Wisconsin, northern Illinois, and also into northern Indiana with Low risks as far east as southern Ontario, Canada and into Ohio. This second cold front is likely to push southeast of much of the corn-growing region by late Saturday into Sunday, so no additional risks are predicted after midday Saturday.