Post-harvest losses are notoriously high in developing countries. Worldwide annual losses in store reach up to 10% of all stored grain. The application of neem derivatives to bags and stored grains can provide protection against insect pests. Farmers usually mix neem leaves with grain before keeping it in storage for several months. Neem leaves, oil or extracts act as repellent against several insects such as weevils, flour beetles, bean-seed beetles and potato moths. Treatment of jute sack by neem oil prevents the penetration of pests like weevils and flour beetles. Neem oil destroys bean-seed beetles (bruchids), a variety of insects mostly attacking legumes, at the egg-stage itself. A mixture of neem leaves and clay and cow-dung develops pest resistant property so it can be used to make bins for storage of grain. 

While neem treatments cannot completely replace chemical pesticides used in stored products preservation, the amounts of pesticides needed could be reduced, thereby decreasing the pesticide load in food grains. With proper timing and innovative methods of application, their use could be integrated in stored products management.