Some of the Noctuids are preyed upon by bats. However, some of these species have developed an evasive system whereby upon hearing the high pitched note emitted by the bat to locate its prey, a tiny organ in the ear sends muscles in the wings into spasm - causing the moth to dart around erratically. This random movement is too quick for the bat to follow. If you've ever had the pleasure to chase a celery looper through the grass, you've witnessed a Noctuid moths evasive flight capabilities.

Several species have larvae (caterpillars) that live in the soil and are agricultural or horticultural pests. These are the "cutworms" that eat the bases of young brassicas and lettuces. They form hard, shiny pupae. Most noctuid larvae feed at night, resting in the soil or in a crevice in its food plant during the day.