The western bean cutworm passes through five developmental stages – egg, larva, prepupa, pupa, and adult (moth). The dome-shaped eggs, which are slightly.
The western bean cutworm is a late-season pest and its feeding can cause both Larvae will then move into protected areas of the corn plant, feeding on leaf.
First instar larvae are quite mobile and may infest several adjacent plants. Third instar and older western bean cutworms can be differentiated.