Insect Alert For

Corn Earworm

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

A somewhat slow-moving low pressure system and attendant cold front is predicted to move from west to east through the corn-growing region over the next several days. While not a particularly strong system, there may be enough southerly wind push to the east of the cold front to result in some isolated corn earworm moth flights into especially the central and eastern corn-growing region over the next 3-4 days. Low risks are predicted tonight into tomorrow from Kansas and Nebraska as far east as Wisconsin and Illinois, and potentially as far north as Minnesota. Low risks then shift east as the cold front inches east tomorrow, with Low risks focused between the I-35 and I-75 corridors. Finally, by Saturday into Sunday, Low risks are found mainly east of the I-57 corridor in eastern Illinois. Growers should monitor traps and scout fields as we could be seeing multiple generations present in some areas, either from new larvae from previous flights late last month or early this month, or new moths and eventual new larvae in the future.