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Efficacy of Some Indigenous Pesticidal Plants Against Pulse Beetle, <I>Callosobruchus</I> <I>chinensis</I> (L.) On Green Gram

Author(s): V. Sathyaseelan | V. Baskaran | S. Mohan

Journal: Journal of Entomology
ISSN 1812-5670

Volume: 5;
Issue: 2;
Start page: 128;
Date: 2008;
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Keywords: pesticidal plants | Callosobruchus chinensis | ovipositional deterrent

Prosophis sp., Nerium sp., Ocimum sp., Acalypha sp., Catheranthus sp. and Vitex sp. were tested against pulse beetle Callosobruchus chinensis (L.) in green gram. Leaf extracts of all the plants caused significant ovipositional deterrent effect against pulse beetle. Five percent leaf extract of Vitex sp. was the most effective in inhibiting the oviposition (26.6 eggs/female) as that of 79.4 eggs/female in untreated control. At 5% level, leaf extract of Vitex sp. caused maximum reduction in egg viability (61.7%) followed by Catheranthus sp. leaf extract (56.7%). The egg viability gradually decreased with the increase in dose level of each treatment. Vitex sp. treated seeds at 5% level caused maximum reduction in adult emergence (85.0%) followed by Catheranthus sp. (83.7%), Acalypha sp. (73.3%), Nerium sp. (70.0%), Ocimum sp. (68.7%) and minimum reduction was recorded in case of Prosophis sp. (68.0%). No adverse effect was observed on the germination of green gram up to 90 days after treatment.]]>
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