The use of Neem in pest control is known since antiquity. The villagers in India put Neem
leaves in their storage bin to protech their grain from pest and insects. Neem leaves are also
kept in boxes where woolen clothes are stored to protect from moths and pests that destroy
clothes. In modern world the interest in Neem for
natural pest control emerged after the
health hazards and adverse ecological effects of chemical pesticides. With the introduction
of modern agriculture in India, Indians have also switched over to chemical pesticides and
now again want to go back to
natural bio-pesticides. It was in 1962 when Pradhan and his
associates for the first time discovered the anti-feedent action of
Neem seed extracts to
locusts. Since them lot of literature has been published on its pesticidal properties and other
useful attributes of Neem in health care (Attri, 1961)
Pest and insects, disease causing pathogens, etc. are estimated to cause an annual loss
of about 30-35% of the potential food world wide. In India, according to a very conservative
estimate, the annual losses of agricultural products due to pest infestation is about Rs.
25,000 crores. Although many strategies including Bt transgenic crops are being adopted
the use of
Neem in pest control is the most safe and reliable method. Studies have revealed
that the neem possesses about a dozen pest control properties and the
Neem pesticides
are ecologically sound and safe.
In Canadian study, it was shown that Neem is quite harmless to aquatic invertebrates and
other non-target species. Neem contain several compounds and therefore developing
resistance by insects/pests. Neem also has a systemic action and therefore seedlings can
absorb and accumulate the
Pure Neem Oil to make the plant pest resistant. It is reported
that Neem has a broad spectrum of action and active on more than 200 species of pests.
(Kumar, 2002).