Insect Alert For

Black Cutworm

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Alert Details

Black cutworm migration risks remain in the forecast across a large portion of the corn-growing region right into next week. A persistent pattern featuring low pressure in the High Plains/southern Canada and high pressure in the southeast/eastern United States is likely to keep a broad area of southerly winds across the majority of the corn-growing region into next week until a cold front passes around mid-week. Given the time of year, planting progress, and real-time and anticipated crop stage, only Low migration risks are in the forecast as most corn that has already been planted will be past critical growth stages once new larvae appear next month. Low risks focus from the Plains as far east as I-75 in lower Michigan and western Ohio tonight into tomorrow, with just a slight retrograde to the west into Indiana and southern lower Michigan tomorrow night into Saturday. Low risks then focus mainly south of I-90 from South Dakota into southern Minnesota, Wisconsin, and southern lower Michigan and points south for the remainder of the weekend and into early next week, at least. Growers with corn at a susceptible stage to potential black cutworm damage should continue scouting efforts and in fields where corn was just or has yet to be planted, traps should be monitored for any potential moth flights in the coming week.