Red flour beetle is one of the major insect pests of stored grain product in warm and tropical regions of the world. It is the most abundant and injurious pest in flour mills, bulks of grains, oil seeds, stored cereals and warehousing facilities. The life cycle requires 7 to 12 weeks. Bacillus thuringiensis (Bt) is a biological insecticide that makes it useful for pest control. It is naturally occurring bacterium common in soil throughout the world. B. thuringiensis acts by producing proteins (toxic crystal) that react with the cells of the gut lining of susceptible insects. Bacillus...