Insect Alert For

Black Cutworm

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

Black cutworm migration risks will increase by this weekend but especially into next week as the overall weather pattern shifts from a dominant northwest flow to one more zonal to even southwest-flow dominated by early next week. No less than two separate low pressure systems are predicted to impact the corn-growing region next week, with the second system likely providing a better opportunity for black cutworm migration mid-week. Low risks are predicted from the eastern Plains into western Wisconsin and Illinois tomorrow night into Sunday with southerly winds on the first system. Low risks then shift east with this system across the southern Great Lakes and eastern corn-growing region Sunday night into Monday. By this time, the second system is already likely to be developing in the western Plains and this one should be stronger and have more wind with it. Moderate migration risks are already predicted across portions of Illinois, Wisconsin, Missouri, Kentucky, Indiana, and Michigan next Tuesday night into Wednesday and additional states may be added in the Moderate risk early next week closer to the event. There have already been several black cutworm migration opportunities in the past few weeks with more expected in the next several weeks, so growers especially in the central/eastern corn-growing region are encouraged to be extra vigilant on scouting later this spring as populations of this insect may be higher than average.