You may be liable for injury or damage resulting from pesticide use. Gray, mealy plant lice that form colonies on foliage. Cabbage maggot Diazinon and other materials Delia brassicae are available, consult labels for rates and proper use. White, legless maggots that feed on roots, causing flagging and death. Adult is a small, gray fly that lays white, oblong eggs at bases of plants.
Adults feed on seedlings and foliage.
Plutella xylostella Bacillus thuringiensis. See label Gray or brown moths that have for rate. Use a spreader- white margins on forewings. When folded, the markings form a white diamond. Frequently attacks young plants and requires cypermethrin - 0.05 to 0.10 lb control measures.