Organic Insectiside


One of the most promising benefits of  the Neem Tree may be the use of neem extractions in organic insecticides.  Accordingto the World Health Organization, over 20,000 deaths and a million illnesses each year result from misuse or overuse of pesticides inThird World alone. Neem insecticides have many advantages over traditional chemical methods: research indicates they are not harmful to humans or animals, insects don't become resistant to them, neem extracts do not accumulate in the environment, and they also spare beneficial insects like butterflies and ladybugs. Entomologist have found that neem compounds can affect more than 200 insect species, including mosquitoes, fruit flies,head lice, fire ants, fleas and cockroaches.

 The neem serves as a  unique insecticide in that its compounds do not immediately kill nsects, but rather alter insects' behavior or life processes in subtle ways as to impair the insect so that it can no longer feed, breed, or metamorphose.

The chemical structure of the neem contains only carbon, hydrogen,and oxygen, incontrast to inorganic, synthetic insecticides. There are four  compounds found in neem which act as an antihormones which combats insects.  Azadirchtin which blocks molting thus ending the insects life cycle. Meliantriol and Salannin
both repel insects by causing them to stop eating. The fourth compound,nimbin works on antiviral activity.

It is a farily simple process to obtain these compounds extracting them from the seed kemels ofthe tree. Crushing the kernels and extracting them with water is the most effective way for village people to obtain neem insecisides.  Scientists are devloping more advanced processes.