Insecticidal plants –
All plants emit chemical compounds. It is basically, how they communicate with the world around them. Including us and other plants and insects. In addition to this, insecticidal plants are plants that emit compounds, that are useful to us in the garden. These compounds naturally keep common “pests” away. Especially plant eating insects.
So, this alone makes them our best friends in the garden. Especially around decks and patios. In addition to how pretty they are. These chemical compounds have been developed by the plant over thousands of years. So, in some cases, they have become very specific. But, in other cases it’s more generic.
These properties are the reason for using Essential oils in the garden. However, it is not just the leaves. Plants have a more beneficial impact when planted in the soil. Because, in some cases the roots have to deter the pests. It is the roots interaction with the soil, and soil dwelling organisms, that has the greatest benefit. This is especially true in a low maintenance garden. So, plant perennial plants that have insect deterring properties. Because, the effects are felt season after season. Without too much further input from us.
So, here is a list of some examples.
And, the “pests” that don’t like them.
In conclusion, think about incorporating some of these plants into your garden. Use less spray!
Insecticidal Plants: Fennel
Deters: Aphids, and Slugs
Insecticidal Plants: Daffodil
Insecticidal Plants : Rosemary
Deters: Cabbage looper, Carrot fly, and Slugs
Deters: Aphids, and Wireworm
Deters: Aphids, Squash bugs, and Cabbage looper
Deters: Cabbage looper, Root maggot, Corn earworm, Tomato hornworm, and Whitefly
Deters: Ants, Cabbage looper, Cabbage maggot, Flea beetle, Carrot fly, Codling moth, and Mice
Deters: Whitefly, Cabbage moth, Aphids, and Squash bug
Plant: French Marigold
Deters: Whitefly, and Root-feeding nematodes
Insecticidal Plants: Alliums
Deters: Carrot fly, Cabbage worm, Slugs, Tomato hornworm, and Aphids
Plant: Lemon Balm
Deters: Carrot fly, and Aphids
Deters: Tomato hornworm, and Cabbage looper
Deters: Squash bugs, and Cabbage looper