Vol. 12, Issue 3 (2023)

Stored product pests may cause heavy losses in agricultural and horticultural products after harvesting. On an average 10% overall losses of food commodities caused by stored grain insect pests. Diatomaceous earth is a non-toxic pesticide that is used to preserve stored goods as well as to manage pests in the home and garden. It is popular among organic gardeners since it is a natural substance that doesn't harm the environment or humans. Diatomaceous earth is applied in different doses to check the population of the Sitophilus oryzae. Observation was taken at different interval during the course of study. Each dose of diatomaceous earth was effective in reducing the population of the tested insect. Dose of (1.25, 1.5, 2.25 and 2.50) g/kg DE has been found highly effective against Sitophilus oryzae. Diatomaceous Earth is the silica based amorphous powder that act as a physical poison for insect body. They are the effective in managing the tested insect population. It is environmentally safe do not affect human health.