The adults are dull-colored moths that are most active during the night. The immatures are dull gray, brown, or black and may be striped or spotted. They generally feed at night and remain hidden during the day. The immature or worm is the damaging stage of this insect. It will generally cut young plants in two right at the soil line, while other types will climb plants and feed on leaves and buds.
Most damage occurs in early spring shortly after plants have emerged from the soil.
Cutworms may be controlled by using a preplant application of an insecticide. Diazinon as a spray or granules can be used. Immediately work the soil to a depth of 2 to 3 inches. Nearly all vegetables. Fall Armyworm Description.