There are several types of cabbage worms, but the two species that are most common and damaging to gardens in Ohio are the Cabbage White butterfly (Pieris rapae) and the Cabbage Looper (Trichoplusia ni).

These pests primarily target host plants such as broccoli, cauliflower, Brussels sprouts, collards, kale, mustard greens, turnip greens, radishes, turnips, rutabagas, and kohlrabi. The larvae feed on the leaves of these plants, creating irregular holes. As they grow, they may bore into the center of the plants, contaminating them with fecal pellets.

Natural predators of cabbage worms include parasitic wasps, spiders, green lacewings, and insect-eating birds.

If you encounter an infestation, we recommend using Bonide BT Thuricide Spray RTU.