As daytime temperatures rise, the army cutworm is found under soil clods and other debris during the day. This is a climbing cutworm that always feeds above ground during the night and on cloudy days. Army cutworms have a very wide host range and will feed on most crops grown in Colorado. They will feed on just about any green tissue presented to them, although they will show preferences when given a choice. For example, army cutworms have been observed to prefer broadleaf weeds in wheat fields over wheat.
Army cutworm is a foliage feeder, but usually hides during the day.
Larvae can be found under soil clods and surface debris, usually near the base of the plant. Occasionally they may be found feeding on the plants on cloudy days and during the evening. Because of the sporadic nature of army cutworm outbreaks, management options are limited to the use of insecticides. Army cutworm feeding has the most effect on yield when there is relatively little foliage for them to feed on, which increases the likelihood of damage to the crown. The best insecticide choice depends on which of these pests are present.