Larvae are variable in color and can be green gray or black. It is common in the southeastern states, but it has been found as far north as northern Arkansas and Kansas. The southern armyworm is native to topical areas of North, Central, and South America.
They are known to bore into fruit, often damaging tomato crops.
Young larvae feed gregariously, often skeletonizing host plants. They also consume weeds, especially pigweed and pokeweed, and there are reports of armyworm infestations beginning with these weeds and subsequently spreading to adjacent crops. The caterpillars have been reported to feed on a broad range of plants, including important vegetable, fruit, field, and ornamental crops.
The southern armyworm appears to be increasing in importance as a pest in some southern states, but it seems to have relatively minor impact in Arkansas.
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