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Efficiency of oils from medicinal plants as protectants of green gram against the pulse beetle.

Harish, Chander and Ahmed, S. M. (1986) Efficiency of oils from medicinal plants as protectants of green gram against the pulse beetle. Entomology, 11 (1). pp. 21-28.

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Abstract

Oils extracted from five medicinal plants were assayed for their ovicidal, repellent and protectant properties against Callosobruchus chinensis L. infesting green gram Vigna radiata (Wilcz). Per cent oviposition on seeds was significantly reduced when oils from rhizomes of Acorus calamus and Curcuma amada, and seeds of Carum copticum and Bassia longifolia were applied at doses of 0.25 and 0.50 ml/kg seed. Reduction in oviposition on treated grains was mainly because of high insect mortality and repellency. Egg hatching was also significantly lower at the tested concentrations. Oils of A. calamus at 1 ml 'kg seed offered high degree of protection upto a period of 135 days, while oils of C. amada and C. copticum at the above mentioned concentration protected the seeds for 90 days only. Prolonged protection of green gram seeds was mainly due to reduced oviposition, low hatching and high adult mortality. Germination of the treated seeds with effective doses was not impaired to any significant extent.

Item Type: Article
Uncontrolled Keywords: Callosobruchus chinensis, green gram, oils, oviposition, egg hatch, ovicidal, adult emergence, protection
Subjects: 600 Technology > 03 Agriculture > 04 Medicinal Plants
600 Technology > 03 Agriculture > 05 Insect/Pest Control
600 Technology > 08 Food technology > 22 Legumes-Pulses
Divisions: Food Protectants and Infestation Control
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 01 May 2012 06:38
Last Modified: 01 May 2012 06:38
URI: http://ir.cftri.com/id/eprint/4092

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