When nearing maturity, armyworm larvae are 1½ to 2 inches long. The head capsules have honeycomb-like markings, and the body lacks obvious hairs. Overall body coloration varies, but is usually some shade of greenish-black with two alternating dark and orange stripes running lengthwise down each side plus a light or faint white line on the back. Adults frequently deposit their eggs where grass is very lush, often in low-lying areas on wheat or pasture ground. Field margins or fields with dense growths of grassy weeds also are preferred egg-laying sites. Problems develop when the larvae consume the grasses or the grasses dry (wheat matures) and the larvae move to corn to survive.