Citrus oil was procured from Food Sciences Institute and Acorus calamus oil imported from Sri lanka.
The data as depicted in the table revealed that neem leaves extract at 1.5% concentration was found the most effective against Trogoderma granarium showing 22.00, 22.67, 32.00 and 35.33 % mortality after 24, 48, 72 hours and one week of treatment, respectively .It was followed by 19.33, 21.33, 28.00 and 32.67 % mortality in the treatment where Acorus calamus oil at 1.5% concentration, 19.33, 21.33, 27.33 and 33.33% mortality in the treatment where citrus oil at 1.5% concentration and 17.33,18.67,25.33 and 30.67% mortality in case of Nelumbo nucifera were used, respectively after 24, 48, 72 hours and one week of treatment.
