![]() This usually happens during May and early June. Once the larvae have consumed the readily available food, or small grains mature, they move into other crops, most notably corn. Infestations usually develop in grass pastures, fence rows, roadsides and in small grain fields where crops have lodged or are matted against the ground. The larvae feed primarily on grain crops and grasses, attacking other plants only when preferred foods are not available. ![]() Upon reaching larval maturity, it is about 1-1/2 inches (38 mm) long. A full-grown larva is dull-green to brown in color with alternating light and dark stripes running the length of its body. The young larva is green in color and moves about in a looping motion. The adult armyworm is a pale brown moth with a white dot in the center of each forewing. Adult moth with characteristic white dot on forewing
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