Neem Based Insect Antifedant is effective against a wide range of insect pests, when applied solely or in combination with recommended insecticides. The Insect Antifedant contains minimum neem antifedant stabilised using triple refined cold process, which can be assayed by the HPLC method and contains surfactants for easy application in the form of emulsified spray. The Insect Antifedant is effective against a variety of sucking and leaf feeding insects such as bemisla tabaci, spodoptera litura. The Neem Based Insect Antifedant is useful against heliothis armigera, earias, tetranychus etc.