ABSTRACT
There have been extensive studies on the utilization of plant extracts, powder, ash, essential oil, sulary, or whole plant materials for insect management under storage condition, but few are used on a commercial scale. The application of plant product for management of stored grain insects was first reported by Golob and Webley in the form of bibliography. This chapter elaborates that the different types of plants and their activity against major stored grain insect pests. Utilization of locally available plant materials for protection against stored grain insects will open the door for biopesticides which is biodegradable, eco-friendly, and sustainable, because they do not produce any adverse effect on grain or seeds and break down resistency against chemical insecticides. The secondary metabolite of plants is a complex mixture of several chemical compounds, which is not related to function of photosynthesis, growth or other aspects of plant physiology.
