Small white butterfly whose caterpillars feed on cabbage-family plants and related mustards. In vegetable gardens it is the familiar imported cabbageworm: ecologically a real Brassicaceae herbivore, practically a pest that turns cabbages, kale, broccoli, and watercress into larval food unless gardeners manage crops with netting, hand-picking, or other low-toxicity controls.

Larval host plants · 1

Native to Eurasia and North Africa, then accidentally introduced widely; now established across North America, Australia, New Zealand, and other regions with brassica crops and weedy mustards.