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Azadirachta indica, commonly known as neem, margosa, nimtree or Indian lilac, [3] is a tree in the mahogany family Meliaceae. It is one of the two species in the genus Azadirachta . It is native to the Indian subcontinent and to parts of Southeast Asia , but is naturalized and grown around the world in tropical and subtropical areas.
The genus Azadirachta was established by Adrien-Henri de Jussieu in 1830. [1] In 1753, Carl Linnaeus had described two species, Melia azedarach and Melia azadirachta. [3] De Jussieu considered Melia azadirachta to be sufficiently different from Melia azedarach to be placed in a new genus, Azadirachta, as Azadirachta indica. [4]
Melia dubia Commonly known as Malabar Neem, Maha Neem, Gora Neem, or Barma Dhek. This is one of the most important industrial tree species that has rapidly expanded in the Indian subcontinents in recent decades. M. dubia is a tree of tropical and subtropical regions which is mainly cultivated for its widely important industrial and medicinal ...
The skin (bark) of the neem tree should be reddish. The tree should have a chakra (wheel) with a small depression in the middle. The daru of Balabhadra should have seven branches. The bark of the tree should be light-brown or white. It should have the sign of a plow and pestle on it. Near the tree should be a heritage site and a graveyard.
Formulations that include neem oil have found wide usage as a biopesticide for horticulturists [4] and for organic farming, as it repels a wide variety of insect pests including mealy bugs, beet armyworms, aphids, cabbage worms, thrips, whiteflies, mites, fungus gnats, beetles, moth larvae, mushroom flies, leaf miners, caterpillars, locusts, nematodes and Japanese beetles.
Neem cake organic manure is the by-product obtained in the process of cold pressing of neem tree fruits and kernels, and the solvent extraction process for neem oil cake. It is a potential source of organic manure under the Bureau of Indian Standards, Specification No. 8558. Neem has demonstrated considerable potential as a fertilizer.
This page was last edited on 20 June 2016, at 05:17 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Some laboratory and field studies have found neem extracts to be compatible with biological control. Because pure neem oil contains other insecticidal and fungicidal compounds in addition to azadirachtin, it is generally mixed at a rate of 1 US fluid ounce per US gallon (7.8 mL/L) of water when used as a pesticide.