Properties of Neem -

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NEEM.FR

Neem.fr is a website for nature enthusiasts actively supporting the development of Neem. Our goal is to facilitate information for the public and professionals to draw attention to the many possible applications of Neem.

Properties of Neem

To protect themselves from insect attacks, many plants produce chemical substances with various properties: toxic, insect growth regulators, appetite-suppressants, or phagodissuasive. The Neem produces from its fruits, leaves, flowers, and bark over a hundred chemical substances, among which one of them (azadirachtin) is one of the most effective bio-insecticides.

For Plants

In emulsion with water and by spraying, Neem oil serves :

as a fertilizer (foliar fertilization)
as a natural defense stimulator
as a pesticide
as an insecticide
as a repellent in vegetable, fruit, and forestry crops

Its ovicidal and larvicidal properties allow it to affect the laying of eggs by females of certain arthropods as well as the molting and growth of larvae, thereby weakening the resistance of these insects. Neem oil is not toxic to warm-blooded animals (vertebrates) and humans.

The natural components of Neem allow for a wide range of applications:

pesticides (parasites)
fungicides (fungi)
insecticides (insects)
The two-spotted spider mite in the laboratory
The green peach aphid (Myzus persicae), the greenhouse whitefly in the laboratory
The small fruit thrips in the laboratory and greenhouse
Potato leafroll virus (PLRV) and Potato virus Y (PVY) in the greenhouse
Mites, aphids, greenhouse whiteflies, black flies in the greenhouse
On green beans against the bean fly and grasshoppers in the open field
On watermelons against the cucurbit fly in the open field
On tomatoes against the tomato fruitworm, whiteflies, leafminers, foliage aphids, thrips in the open field
On strawberries against the tarnished plant bug in the field
On broccoli, rutabaga, cabbage, radish against the cabbage fly in the field
Onions against the onion fly in the field
On rosemary in tunnels against the spittlebug (Eupterix decemnota), mites, whiteflies, thrips
On strawberries against strawberry powdery mildew in the laboratory
On apple trees against the woolly apple aphid and the foliage aphid in orchards

For humans

In allopathic, homeopathic, and traditional Indian medicine, Neem extracts are used for a wide range of pathologies, dermatological, respiratory, digestive care, etc. It also has antiseptic properties.

In the cosmetics industry, Neem oil is incorporated into creams, body oils, shampoos, repellents, sunscreens, and toothpaste.

For housing: Neem oil significantly reduces the presence of mosquitoes in homes.

For animals

In hygiene and veterinary care: Neem oil sprayed disinfects stables and barns through its fumigatory action. In shampoo, it serves as a repellent and care for the fur.

Here are a few examples!

EXAMPLE 1 :

In Brazil, all fruit and vegetable producers, as well as agricultural product distributors, are familiar with Neem, which has been a commonly used product since 2001, especially for animals and agriculture. Some areas of application include: Agriculture: caterpillars (all), scale insects, whiteflies, thrips, aphids, scarab beetles, whiteflies, fruit flies, leaf miner, coffee leaf miner (Perileucoptera coffeella), citrus leaf miner (Phyllocnistis citrella Stainton), and other leaf miners, millipedes, earwigs, etc. Meloydogine, Pratylenchus, and other nematodes. Root and stem diseases of plants, bean powdery mildew, Rhizoctonia solani, brown root rot, R. Oryzae, Sclerotium Rolfsii, Sclerotinia sclerotiorum, Sitroga Cerearella, fusarium oxyporum, phytophthora (tomatoes and potatoes). In livestock farming: ticks, lice, fleas, horn flies, stable flies, mange, mites, farm beetles, triatomines, etc. In grain storage: termites and weevils. Source: “Agromix Brazil”

EXAMPLE 2 :

The “Old Country”, south of the Elbe, near Hamburg in Germany, is one of the largest fruit-growing regions in Europe. In Jork, on their 40 hectares of orchards, the zum Felde family abandoned traditional farming methods in 1996. “Even though we practice organic farming, we do not give up on plant protection,” says Heinrich zum Felde. Among the products he uses, there is one that deserves attention. “I have been using azadirachtin for seven years, and it has allowed me to definitively control infestations of apple aphids,” rejoices the orchardist. A solution from Asia. “Azadirachtin prevents the production of a hormone necessary for insect molting. The active ingredient is extracted from the seeds of the neem tree, a tree whose properties have been used for over two thousand years in agriculture and medicine in India.” Source: “Le Sillon” Summer 2007 edition.

EXAMPLE 3 :

In Forestry: Neem is also well-known in Canada. The potential of neem has been evaluated in red pine plantations, on white pines, in pine plantations, in seed orchards, and black spruce and white spruce plantations in western red cedar plantations (Ontario) and in balsam fir stands in Newfoundland. Result: Neem seed extract containing azadirachtin has been highly effective against defoliating larvae of 13 species of lepidopterans and sawflies (hymenopterans).

About Neem

In Brazil, all fruit and vegetable producers, as well as agricultural product distributors, are familiar with Neem, a commonly used product since 2001, especially for animals and agriculture.

The Organic Alternative

Azadirachtin-A, naturally present in Neem, effectively fights against a large number of pests. Over the last 25 years, entomologists have isolated more than 400 different species…

Did You Know ?

At maturity, the Neem tree can produce up to 50kg of fruit, which is equivalent to 30kg of seeds; these seeds are the main source of insecticidal compounds, including azadirachtin. However, the quantity of azadirachtin in the seeds varies considerably depending on climatic conditions, soil conditions, and the tree’s genotype (Ermel 1986; Singh 1986).