Managing Cabbage White Butterfly Caterpillars in Your Vegetable Garden

The Pest: Cabbage White Butterfly

The cabbage white butterfly targets brassicas (cabbage, Brussels sprouts, broccoli, cauliflower) attracted by a chemical in their leaves. The butterfly itself is harmless, but its eggs hatch into hairy, 3–4 cm caterpillars that devour foliage—turning a cabbage head to skeleton in days. Infested leaves are toxic even after washing.

Organic Control Methods

Netting: Cover plants with sheer netting while butterflies are active. Ensure sufficient sunlight penetration.
Companion Planting: Plant tomatoes and celery nearby—their scents mask brassica odor, deterring butterflies.
Encourage Birds: Songbirds love caterpillars. Temporarily relocating cats can increase bird visits.

Chemical Options

Garden centers offer sprays, dusts, and bug guns. However, for organically grown food crops, prioritize non-chemical methods.