Basil
Basil is the star plant when it comes to repelling insects. It works best against the flea beetle and the cabbage webworm.
It has four volatile compounds that also help keep mosquitoes away (citronellal, limonene, nerolidol, and estragole).
You can use fresh basil to prepare a
DIY insect-repellent spray. Combine four ounces of boiled water with four to six ounces of fresh basil leaves.
Leave the mixture to steep for several hours before you take out the leaves and squeeze all of the moisture out of the leaves into the liquid.
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