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The ingestion of neem oil is potentially toxic and can cause metabolic acidosis, seizures, kidney failure, encephalopathy and severe brain ischemia in infants and young children. [2] [8] [9] Neem oil should not be consumed alone without any other solutions, particularly by pregnant women, women trying to conceive or children. [2]
Neem oil is biodegradable and has not been shown to be toxic to mammals, birds, bees, earthworms, or beneficial insects. [ 7 ] Synthetic insecticides such as the organophosphates acephate (orthene), malathion , or diazinon can be used in severe cases but read the labels for approved crops and the number of days to wait to harvest.
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.
Here’s how apply neem oil for insect and disease management.
The metabolism of bees and humans is sufficiently different that bees can safely collect nectars from plants that contain compounds toxic to humans. The honey produced by bees from these toxic nectars can be poisonous if consumed by humans. In addition, natural processes can introduce toxic substances into honey produced from nontoxic nectar.
The Government has set out plans to end the use of three pesticides that are lethally toxic to bees and other vital pollinators. Neonicotinoids were banned in the UK in 2018, but have been ...
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.
Bio-derived chemicals. Four groups are in commercial use: pyrethrum, rotenone, neem oil, and various essential oils are naturally occurring substances that control (or monitor in the case of pheromones) pests and microbial disease. [9] [5] Plant-incorporated protectants (PIPs) incorporate genetic material from other species (i.e. GM crops ...
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