Insecticidal Plants

Insecticidal plants emit chemical compounds that naturally deter common pests. This trait alone makes them our best friends around decks and patios, let alone how pretty they are. These genetic traits have been developed over thousands of generations. In some cases, they have become very specific, in others it is more generic.

The insecticidal tendencies of certain plants is the basics of using essential oils in the garden. In some cases the plants root interaction with the soil and soil dwelling organisms have the greatest insecticidal benefit. They have a more beneficial impact when directly planted in the soil. This is especially true in a low maintenance garden. By planting perennial plants that have insecticidal traits, their effects are felt season after season, without too much further input from us.

Fennel

fennel insecticidal plants

Aphids, Slugs

Daffodil

daffodil insecticidal plants

Rodents

Rosemary

Rosemary insecticidal plants

Cabbage looper, Carrot fly, Slugs

Clover

clover insecticidal plants

Aphids, Wireworm

Spearmint

spearmint insecticidal plants

Aphids, Squash bugs, Cabbage looper

Thyme

Thyme insecticidal plants

Cabbage looper, Root maggot, Corn earworm, Tomato hornworm, Whitefly

Artemisia

Ants, Cabbage looper, Cabbage maggot, Flea beetle, Carrot fly, Codling moth, Mice

Nasturtium

Whitefly, Cabbage moth, Aphids, Squash bug

French Marigold

french marigold

Whitefly, Root-feeding nematodes

Alliums

Carrot fly, Cabbage worm, Slugs, Tomato hornworm, Aphids

Lemon Balm

lemon balm insecticidal plants

Mosquitos

Chives

chives i

Carrot fly, Aphids

Borage

Borage insecticidal plants

Tomato hornworm, Cabbage looper

Dill

Squash bugs, Cabbage looper

Elderberry

Elderberry insecticidal plants

Comfrey

Comfrey insecticidal plants