Evergestis rimosalis (Guenée)
As with most members of the Lepidoptera family, it is the larval stage of the Cross-striped Cabbageworm that causes the damage to plants. They target cruciferous vegetables but are more of a problem on broccoli, cauliflower, collards, and Brussels sprouts than on kale and cabbage. They feed on the vegetables from the outside and burrow into the developing vegetables.
The adult moth has a wingspan of about one inch. The front wings are straw-colored, marked with olive or purplish-brown, and crossed by narrow transverse lines. Hind wings are transparent and whitish. Eggs are laid in small masses, are oval, yellow, and flattened, and overlap slightly.
Control begins when you see the adults. Release Trichogrammaspp eggs and once hatched, these tiny parasitic wasps will attack the eggs.
Once the larvae have hatched, it is time to spray your plants with Bacillus thuringiensis kurstaki or Spinosad. These will knock out the pests in short order.
For control products and more information please see our Caterpillars and Moths Control page.Photo courtesy of Clemson University Department of Entomology, Soils & Plant Sciences, Cooperative Extension Service.