The use of synthetic pesticides was careless and indiscriminate, and led to number of well known problems. Eventually we need a movement towards a more environment-oriented, sustainable, health protecting, low toxic pesticides in an attempt to preserve and protect the environment and human health. As a logical conclusion, this led to the test of neem seed oil, neem kernel powder and Malathion. Neem derivatives are readily available, highly economical, dependable bio-insecticides with least poison effect. Since the control of the Helicoverpa armigera is an essential for the "Agricultural Economy". The present study were evaluated for the control of Helicoverpa armigera third, fourth, fifth and sixth instar larvae which are distributed in the cotton field. An increase in the concentration of Neem derivatives resulted in an increased the larval mortality rate when compared to malathion.
