Journal of Applied Entomology - Zeitschrift für angewandte Entomologie (1998) 122, 607-611

A.V. Reddy and R.P. Singh (1998)
Fumigant toxicity of neem (Azadirachta indica A. Juss.) seed oil volatiles against pulse beetle, Callosobruchus maculatus Fab. (Col., Bruchidiae)
Journal of Applied Entomology - Zeitschrift für angewandte Entomologie 122 (9-10), 607-611
Abstract: Neem seed extracts and the pure compound present therein have been evaluated for various biological effects on insect and other pests. There is, however, perhaps no report on the evaluation of isolated neem seed volatiles against insect pests. Neem seed volatiles were isolated from neem seed oil and evaluated for their bioactivity against eggs, 2- and 15-day-old grubs and adults of pulse beetle, Callosobruchus maculatus. All stages were found susceptible to different doses of volatiles. At 200-50 µl it caused 100-81.6% and 100-25.4% mortality of adults and grubs respectively. Eggs when exposed to 100-200 µl dose for 3 days failed to hatch. At a 50 µl dose with a 5-day exposure period the eggs that hatched failed to reach adult stage and terminated as grubs. The adults were found most susceptible followed by grubs and eggs. The effects of the volatiles was time-dependent.
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Link to article at publishers website

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Callosobruchus maculatus	Stored legumes