Armyworm and Black Cutworm Moths Arriving in Ohio
-The following article was written by Ron Hammond, Andy Michel and Bruce Eisley
Reports from neighboring states suggest that moths of the true armyworm and black cutworm are now flying in the Midwest. While the black cutworm is a concern in corn, both wheat and corn are often attacked by the true armyworm. Corn is especially at risk from true armyworms when planted into rye cover crops. Armyworm is of most concern on wheat when feeding on the flag leaf. A fact sheet on armyworms on wheat is available at http://ohioline.osu.edu/ent-fact/pdf/0036.pdf . Black cutworms will begin cutting corn in May, especially when the corn is planted into weedy fields, with chickweed being a preferred weed species; a fact sheet on black cutworm is at http://ohioline.osu.edu/ent-fact/pdf/0035.pdf . Because the larvae of both these pests potentially could become concerns over the next month or two, growers should remain vigilant with both pests. Presently, none of the neighboring states are seeing large numbers of either insect; however, we will keep Ohio growers up-to-date on future happenings and need to sample.