Non-Chemical Management
- Cover crops with floating row covers or screen cages to prevent egg-laying by adult butterflies.
- Hand-pick any caterpillars found on leaves.
- Pick and destroy any pupae found.
- Natural enemies of caterpillars include predacious beetles, parasitic wasps, and birds. Avoid use of broad-spectrum insecticides when possible to conserve beneficial insects.
- Remove debris which may shelter pupae.
Select non-chemical management options as your first choice!