Insect Alert For

Corn Earworm

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Alert Details

A return to a more active weather pattern is expected across the corn-growing region especially by next week. The opportunity for at least isolated corn earworm moth flights across portions of the Midwest and Plains exists as early as Saturday night into Sunday as a quick-moving low pressure system advances across the Plains and into the upper Midwest. South to southwest winds to the east of a cold front may result in isolated moth flights from eastern Kansas, Missouri, Illinois, and western Kentucky northward into the upper Mississippi River valley and southwest Great Lakes region. Looking ahead to next week, Low risks are primarily focused in the Plains and southwest Midwest as a typical June pattern of heat in the southern Plains and cooler air in the upper Midwest creates a favorable northwest to southeast storm track. Southerly winds blowing north should encounter a warm front where showers/storms will reside, and could result in corn earworm flights on at least an isolated basis initially across the Plains but eventually spreading further east into Iowa, Missouri, and even southern Minnesota and South Dakota as well.