Corn earworm migration risks return to the corn-growing region by later in the week and next weekend as the weather pattern shifts back to at least a weak southwesterly flow by that time. At the present time, trap counts across source regions in the mid-south and Mississippi River delta regions are lower to much lower than average, so the overall risk of migration into the corn-growing region combined with crops at a unfavorable stage for damage results in only Low risks later this week. Initially, Low risks are in place across primarily Kansas into southern Nebraska, southwest Iowa, and western Missouri Wednesday night into Thursday. The risk then spreads north and east and reaches as far north as southern Minnesota and Wisconsin by Thursday night into Friday and then into southern Michigan by Friday night into Saturday. Growers should monitor traps for signs of isolated corn earworm moth flights later this week and into next weekend.