Division of Entomology, I.A.R.I., New Delhi 110012, India.
* Part of the Ph.D. research work submitted by senior author to P.G. School, IARI, New Delhi.
Neem seed volatiles were isolated from neem seed oil and evaluated for their bio-activity against eggs, 2-and 15 day old grubs and adults of Trogoderma granarium. All stages were found susceptible to different doses of volatiles. At 50–200 μl. it caused 100% mortality of adults and grubs. Eggs when exposed to 100–200 μl dose for 3 days, failed to hatch. There was no ovicidal activity at lower doses (50, 25, 10 and 5 μl). The adults were found most susceptible followed by grubs and eggs. The effects of the volatiles were time-dependent.
Azadirachta indica, Fumigant toxicity, Trogoderma granarium
