Insect Alert For

Corn Earworm

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

Low corn earworm risks are in place for the next couple nights as an upper level low pressure system moves east across the I-70 corridor from Missouri into Illinois and eventually fades away in the eastern corn-growing region. Weak southerly flow to the east of the low may result in a few isolated corn earworm moth flights especially across eastern Missouri into Illinois, far southern Wisconsin, Indiana, western Ohio, and southwest lower Michigan tonight into tomorrow morning. Concerns over precipitation in the risk area and also potentially across the source region may limit the overall ability for migration events to occur, however. Low risks then shift east with the low pressure system tomorrow night into Thursday morning to mainly across far eastern Illinois, Indiana, Ohio, and southern lower Michigan. No additional risks are in the forecast at this time, but growers with crops at susceptible stages to damage are encouraged to continue to monitor traps and scout fields as flights have occurred in the past few weeks.