Insect repellents from natural sources
There are many preparations from naturally occurring sources that are repellent to certain insects. Some of these act as insecticides while others are only repellent.

Achillea alpina (mosquitos)
alpha-terpinene (mosquitos)
Basil (NB: a dose similar to the one as a food ingredient should be used for the time being.)
Further information: Ocimum basilicum
Callicarpa americana (Beautyberry)
Camphor (moths)
Carvacrol (mosquitos)
Castor oil (Ricinus communis) (mosquitos)
Catnip oil (Nepeta species) (nepetalactone against mosquitos)
Cedar oil (mosquitos, moths)
Celery extract (Apium graveolens) (mosquitos In clinical testing an extract of celery was demonstrated to be at least equally effective to 25% DEET, although the commercial availability of such an extract is not known.
Cinnamon (leaf oil kills mosquito larvae)
Citronella oil (repels mosquitos)
Clove oil (mosquitos) (NB: a dose similar to the one as a food ingredient should be used for the time being.)
Further information: Oil of cloves
Eucalyptus oil (70%+ eucalyptol), (cineol is a synonym), mosquitos, flies, dust mites)
Fennel oil (Foeniculum vulgare) (mosquitos)
Garlic (Allium sativum) (rice weevil, wheat flour beetle) (NB: a dose similar to the one as a food ingredient should be used for the time being)
Geranium oil (also known as Pelargonium graveolens)
Lavender (repels insects)
Lemon eucalyptus (Corymbia citriodora) essential oil and its active ingredient p-menthane-3,8-diol (PMD)
Lemongrass (NB: a dose similar to the one as a food ingredient should be used for the time being.)
Further information: Cymbopogon flexuosus
Lemongrass oil (Cymbopogon species) (mosquitos)
Marigolds (Tagetes species)
Marjoram (Spider mites Tetranychus urticae and Eutetranychus orientalis)
Neem oil (Azadirachta indica) (Repels or kills mosquitos, their larvae and a plethora of other insects including those in agriculture)
Oleic acid, repels bees and ants by simulating the "Smell of death" produced by their decomposing corpses. It is a 400 millions years old natural mechanisms helping to sanitise the hives or to escape predators
Peppermint (Mentha x piperita) (mosquitos)
Pennyroyal (Mentha pulegium) (mosquitos,[fleas), but very toxic to pets.
Pyrethrum (from Chrysanthemum species, particularly C. cinerariifolium and C. coccineum)
Rosemary (Rosmarinus officinalis) (mosquitos)
Spanish Flag Lantana camara (against Tea Mosquito Bug, Helopeltis theivora)
Solanum villosum berry juice (against Stegomyia aegypti mosquitos)
Tea tree[
Thyme (Thymus species)(mosquitos)

Inactive substances

Essential oils such as geranium oil have no effect.

Other commercial products offered for household mosquito "control" include small electrical mats, mosquito repellent vapor, DEET-impregnated wrist bands, and mosquito coils containing a form of the chemical allethrin. Mosquito-repellent candles containing citronella oil are sold widely in the U.S. All of these have been used with mixed reports of success and failure.
Other effective methods

Some old studies suggested that the ingestion of large doses of thiamin could be effective as an oral insect repellent against mosquito bites. However, there is now conclusive evidence that thiamin has no efficacy against mosquito bites. Some claim that plants like wormwood or sagewort, lemon balm, lemon grass, lemon thyme and the mosquito plant (Pelargonium) will act against mosquitoes. However, scientists have determined that these plants are “effective” for a limited time only when the leaves are crushed and applied directly to the skin.

There are several, widespread, unproven theories about mosquito control such as the assertion that vitamin B, in particular B1 (thiamine), garlic, ultrasonic devices, incense, can be used to repel or control mosquitoes. Moreover, some manufacturers of "mosquito repelling" ultrasonic devices have been found to be fraudulent, and their devices were deemed "useless" in tests by the UK Consumer magazine Which?[, and according to a review of scientific studies

I know for a fact that vitamin suppliments will help keep fleas away, it does work. Helela

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Replies to This Discussion

Also CINNAMON also is a deterent to ants.
Oh I wouldn't have thought of that Shadowdancer, I thought they would like that. I'll try it if i can remember this.


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