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Lemongrass. Lemongrass looks a lot like citronella, but they’re different plants. Research has found that lemongrass oil to can provide protection from some types of mosquitoes for up to 2.5 ...
When present in amounts less than those fatal to insects, they still appear to have an insect repellent effect. They are harmful to fish, but are far less toxic to mammals and birds than many synthetic insecticides and are not persistent, being biodegradable and also decompose easily on exposure to light.
The pyrethrins are a class of organic compounds normally derived from Chrysanthemum cinerariifolium that have potent insecticidal activity by targeting the nervous systems of insects. Pyrethrin naturally occurs in chrysanthemum flowers and is often considered an organic insecticide when it is not combined with piperonyl butoxide or other ...
Their work consisted firstly of identifying the most active components of pyrethrum, extracted from East African chrysanthemum flowers and long known to have insecticidal properties. Pyrethrum rapidly knocks down flying insects but has negligible persistence — which is good for the environment but gives poor efficacy when applied in the field.
Stop in any garden center and you’ll find mosquito-repelling plants such as citrosa, lavender, mint, and lemon balm that promise to keep mosquitoes away when you’re enjoying outdoor activities ...
Their distinct scent repels mosquitoes and other garden pests, including aphids, squash bugs, and tomato worms. Actually, they contain a natural compound used in many insect repellents!