Insect Alert For

Black Cutworm

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

A change in the corn-growing region weather pattern may lead to better chances for isolated black cutworm moth flights for much of this week as temperatures gradually warm and southerly winds persist. Overall, however, southerly winds are not expected to be that strong and crop stage also has to be considered especially south of I-80 where much of the corn crop has been planted and has emerged already. Low migration risks focus mainly from Missouri, Iowa, and southern Minnesota as far east as southern lower Michigan and extreme western Ohio tonight into tomorrow. Thereafter, and for much of the remainder of the week and into next weekend, Low risks encompass a large portion of the corn-growing region from the eastern Plains east into the southern Great Lakes and eastern corn-growing region and mainly along/south of the I-90 corridor although some moths may make it up into central Minnesota and Wisconsin later in the week. Growers should continue to scout fields, especially those that are newly-emerged, as some flights in April or early May may now be appearing as larvae in a new generation and could inflict damage on these plants.