Cabbage is vulnerable to several diseases. All can be controlled to a greater or lesser extent, but in some cases the only solution is to plant a resistant variety.
Cabbage worms, Cabbage loopers
Affected Area: Leaf
Description: Loopers are caterpillars that are generally green or greyish, taking on the color of the host plant. They may blend well and be difficult to see. They eventually develop into white- or yellow-winged butterflies often seen fluttering about the plants. Caterpillars feed on the underside of leaves leaving ragged holes sometimes to the extent that plants starve and die.
