Integrated Storage Pest Management System by Application of Warehouse Neem( Brand :Wellsto) (Azadirachtin 1 500 ppm min. )

摘要

Food grains constitute the bulk of the diet of human beings. The stored foodgrains require to be protected from the ravages of insect pests through application of various insecticides. The insecticide resistance combined with need for residue free food has prompted development of alternative methods of insect control. The development of resistance in eight insect pests of stored grain to Malathion 50% E. C. and other commonly used insecticide has been noticed （Madhumathi, 1997). This calls for the need to consider the use of biorational or low risk insecticides such as neem formulations as a component in stored grain pest management. The effectiveness of plant derivatives against stored product insect has already been demonstrated,among which the extracts of Neem（Azadirachta indica A. Juss)have received more attention. The pesticidal and medicinal properties from the neem tree have been exploited for atleast the last 2 500 years. Neem oil is also known to be active against 400 insect pests.