Effect of some indigenous grain protectants against Trogoderma granarium on stored wheat

Nine indigenous plant products were tested to evaluate their efficacy as wheat grain protectants against Trogoderma granarium Everts, a major storage pest and to avoid health hazards. Use of Azadirachta indica oil @ 1 ml, leaf powder @ 15 g, Melia azedarach and Ipomea carnea @ 15 g kg⁻¹ seed minimized the weight loss upto 1.9 to 5.4 per cent by providing maximum protection against T. granarium.Ocimum bacilicum, Solamum dulcamara, Momordica dioica leaf powder @ 15 g, Brassica juncea and Cocus nucifera oil @ 1 ml kg⁻¹ seed also gave effective protection of seeds up to 4 months. These oils and powders prevented egg laying and reduced the adult emergence of beetle up to 6.6 to 30.4 per cent in comparison to 79.5 per cent in control.