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A mosquito on a bottle of "natural" insect repellent. Several natural ingredients are certified by the United States Environmental Protection Agency as insect repellents, namely catnip oil, oil of lemon eucalyptus (OLE) (and its active ingredient p-Menthane-3,8-diol), oil of citronella, and 2-Undecanone, which is usually produced synthetically ...
repellent to many pests [3] Parsley: repels asparagus beetles [3] Peppermint: repels aphids, cabbage looper, flea beetles, squash bugs, whiteflies, and the Small White [3] Petunias: repel aphids, tomato hornworm, asparagus beetles, leafhoppers, [2] and squash bugs [3] Pitcher plants: traps and ingests insects Radish: repels cabbage maggot and ...
DEET is effective against a variety of invertebrates, including ticks, flies, mosquitos, and some parasitic worms. [3]A 2018 systematic review found no consistent performance difference between DEET and icaridin in field studies and concluded that they are equally preferred mosquito repellents, noting that 50% DEET offers longer protection but is not available in some countries.
Their insecticidal and insect-repellent properties have been known and used for thousands of years. Pyrethrins are gradually replacing organophosphates and organochlorides as the pesticides of choice as the latter compounds have been shown to have significant and persistent toxic effects to humans. They first appeared on markets in the 1900s ...
Repellents provide some protection against biting flies. Products containing the active ingredient ethyl butylacetylaminopropionate (IR3535), DEET (N,N-diethyl-meta-toluamide), or picaridin are most effective. Some beauty products have been found effective, and their use as insect repellents have been approved by EPA (e.g., Skin So Soft). [14]
As a pest repellent, it is used to keep fleas away from household animals as well as on humans to ward off gnats and mosquitos. Some flea collars for pets have pennyroyal oil or the herb can be crushed in the lining. Humans have also put crushed pennyroyal stems in their pockets or on their clothing to ward off unwanted insects. [25]