Insect Alert For

Corn Earworm

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

Low corn earworm migration risks are predicted Monday night into Tuesday and potentially again Tuesday night into Wednesday as a cold front in dominant northwest flow passes through the corn-growing region. South to southwest winds are expected for a rather short period of time (24-36 hours) prior to this frontal passage, so the overall larger-scale migration risk is pretty low overall. Nonetheless, with a pretty high percentage of both fresh market and field crops now entering or already in critical growth stages, risks are more aggressive even in more marginal meteorological conditions. Low risks are predicted Monday night into Tuesday for areas along/east of the I-35 corridor from Kansas and southeast Nebraska, Iowa, and southeast Minnesota as far east as southern lower Michigan, Indiana, western Ohio, and Kentucky. Additional risks may be needed across the far eastern corn-growing region next Tuesday-Wednesday especially if the front slows down some. Growers are encouraged to monitor traps and scout fields as some isolated moth flights may occur even in marginal conditions.