Abstract

Sitophilus oryzae L., Tribolium castaneum (Herbst.), Rhizopertha dominica (F.), and Callosobruchus chinensis L. are the primary insect pests that cause significant quantitative and qualitative deterioration of agrifood commodities during postharvest storage. Synthetic insecticides methyl bromide, phosphine, organophosphate, and carbamate are the primary control majors of insect pests. However, in view of recent reports on risks associated with synthetic insecticides viz., resistance, residual toxicity, and the resurgence of new pests, the food industries are looking toward safer alternatives. Currently, in view of biodegradable nature and favorable safety profiles, different plant products have been recognized as preferred alternatives to synthetic insecticides. The recent developments in extraction methods, biotechnological advances, and nanotechnology boost the commercialization of plant-based products as botanical pesticides. The article outlines the potential use of plant products in the management of insect pests of food grains with an emphasis on the technological challenges that must be addressed before recommendation for commercial application as biorational insecticides.

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