How to Stop Cabbage Worms Naturally

easyGardening15 minutes per application

Safety Warnings

Ensure row covers are removed before midsummer temperatures become too high to prevent plant overheating.

Row cover — Floating lightweight fabric

Cardboard — Corrugated for collars(1 per plant)

Select cabbage varieties that are specifically noted for being resistant to insects.

Tip: Check seed packets for insect-resistance traits.

Install floating row covers over the crop immediately after planting.

Tip: This physically prevents adult moths from laying eggs on the leaves.

Place cardboard collars around the base of each individual plant.

Tip: Collars provide a physical barrier against certain pests.

Remove row covers before temperatures become too hot in midsummer.

Tip: This prevents heat stress while having provided early-season protection.

Using physical barriers like row covers is one of the most effective natural ways to prevent cabbage worm infestations.

Synthesized from 6 verified sources:

Cornell ExtensionView →

Gutenberg: Farm Gardening GuideView →

Gutenberg: Manual of GardeningView →

Wind River Greens Plant DatabaseView →

Cornell ExtensionView →

Wind River Greens Plant DatabaseView →