Organic Pesticides

Natural Insecticides

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Organic Pesticides  Natural Insecticides

1.] Bacillus thuringiensisB. -"Spores and crystalline insecticidal proteins produced by B. thuringiensis have been used to control insect pests ... often applied as liquid sprays. They are now used as specific insecticides under trade names such as Dipel and Thuricide. Because of their specificity, these pesticides are regarded as environmentally friendly, with little or no effect on humans, wildlife, pollinators, and most other beneficial insects and are used in Organic farming.   Bacillus thuringiensis serovar israelensis, a strain of B. thuringiensis is widely used as a larvicide against mosquito larvae, where it is also considered an environmentally friendly method of mosquito control. Formulations of Bt that are approved for organic farming in the US are listed at the website of the Organic Materials Review Institute . " Wikipedia


2.]Bioneem is a relatively new botanical insecticide. It offers broad range insect control. Its active ingredient Azadirachtin is harvested from the seeds 'Azadirachta indica' , commonly known as the neem tree or margosa tree. It is not highly toxic to mammals

The Neem is a fast-growing broad-leaved evergreen,. Neem trees grow in Southern Asia, Africa, and Australia. In recent years they have been successfully grown in areas such as Florida and South America  The Neem tree contains an unusually high number of potent compounds, notably the chemical found in its seeds - azadirachtin. It's strong resistance to termites makes it a useful construction material.


3.] Insecticidal SoapsInsecticidal soap are basically salts combined with fatty acids

The fatty acids penetrate the insectís protective outer covering disrupting normal membrane function and causing the cells to collapse. It is Non Toxic and safe to use on all vegetable plants up till harvest. It works best against soft-bodied insects such as aphids, caterpillars, mealybugs, spider mites, and whiteflies.


4.] Nicotine sulfate is  toxic to most warm-blooded mammals and requires extreme caution  when handling and applying. It kills insects by disrupting their nervous systems, causing vital functions to cease .... Death.   In Victorian England tobacco was steeped in water to manufacture it, it was then sprayed onto plants and sometimes livestock to ward off insects

Nicotine sulfate is not recommended , nor is it readily available, there are more suitable organic insecticides available.


5.] PyrethinPyrethin Biopesticides are widely-used organic insecticides made from the chrysanthemum plant commonly known as "mums" .Pyrethrins can incapacitate most insects immediately, However, many insects will recover from its effects unless pyrethrins are combined with other insecticides.


6.] Rotenone insecticides are made from the roots of the Leguminoceae or Fabaceae plant family. Rotenone insecticide is mildly toxic to Humans and many animals, fish in particular. It stops insects from feeding, leading to their demise via starvation. 


7.] Ryania comes from the stems and roots of the South American shrub Ryania speciosa. It acts as a stomach poison, keeps insects from feeding leading to death. Ryania is moderately toxic to mammals, if ingested.


8.] Sabadilla, manufactured from the seeds of the South American sabadilla lily, is possibly the least toxic of all organic insecticides. It is sold as a powder and is a contact poison unfortunately due to its low toxicity sabadilla may not stop all insects. It is effective against leafhoppers, stink bugs, Thrips, most caterpillars, and squash bugs. It repels slugs, snails, and many crawling pests. It is toxic to honeybees.  It degrades rapidly on exposure to sunlight and leaves very minimal trace toxicity.