Insect Alert For

Corn Earworm

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

After an early-week break from the high heat and humidity with northwest flow expected to dominate, another weather system is expected to develop in the High Plains and move east by late week into the weekend. This system will likely result in increasing temperatures and some moisture on a switch back to southerly winds. As a result, Low corn earworm migration risks accompany these southerly winds as early as Wednesday night into Thursday across the Plains and into the western corn-growing region mainly west of the I-35 corridor. The Low risk then shifts east into the balance of the corn-growing region by late week and into next weekend ahead of another cold front. Corn and other host plants are still attractive corn earworm hosts in the mid-south and southern states, so only isolated flights are expected further north (thus just a Low risk). Fresh market/vegetable growers, as well as field corn growers, should check traps and monitor fields that are at a susceptible stage of damage, however, as some moths may have arrived over the weekend along/ahead of the cold front that passed through.