Insect Alert For

Corn Earworm

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

An active weather pattern is predicted to take hold across a good portion of the corn-growing region in the next week. A series of low pressure systems and associated frontal boundaries across the central portion of the country in combination with high pressure located in the southeast United States should lead to a good south to southwesterly wind fetch at least into the southern and central portion of the corn-growing region later this week and into next weekend. Despite a favorable weather pattern for corn earworm migration, moth populations in mid-south and southern United States source regions are below to much below average at the present time. Additionally, many crops are not at susceptible stages to damage at this point, so only Low migration risks are in the forecast. Low risks are initially in place tomorrow night into Thursday morning across Kansas and southeastern/eastern Nebraska as well as far southwest Iowa and western Missouri. The Low risk area envelops much of the corn-growing region from eastern Kansas and Nebraska into Iowa, Missouri, Illinois, far southern Minnesota and Wisconsin, southern lower Michigan, Indiana, far southwest Ontario, Canada, Ohio, and Kentucky by the weekend as a more favorable source region across the mid-south is predicted by that time. Growers located within the Low risk area may see isolated moth flights by late week and into next weekend.