Over the leaves or in litter under the plant. The silk mesh is added to the surface of the leaf making its removal difficult. It is distinguished by having three pale, triangular markings along the inner margin of the wings. When the moth has settled at rest, these join together to form three diamond shapes along the middle of the back. Moths prefer to rest under the leaves and in protective plant structures.
Moths are more active and visible at dusk.
They fly around plants searching for a mate or a place to deposit eggs. Male moths are attracted to the pheromone produced by females. Under the leaves near the center line of the leaf, or close to the leaf veins. They are laid either individually or in small groups. They are a frequent pest of cabbage, broccoli, cauliflower, rape, and tsunga.