Efficacy of Plant Products and Vegetable Oils Against Pulse Beetle, Callosobruchus chinensis in Rajma Beans, Phaseolus vulgaris
2011
Sreekanth, M | Rao, N Venugopala | Sudhakar, T Ratna
The laboratory investigations on the efficacy of different plant products and vegetable oils against the bruchid C. chinensis (L.) in Rajma beans revealed that coconut oil, followed by niger and sesame oil at the concentration of 1.5 ml/100 g seed proved their superiority over all other plant products in inducing higher mortality three days and 180 days after treatment. The bruchids fail to lay eggs and there by no adult emergence and no weight loss in coconut oil treated seeds were recorded even after 180 days of treatment. Germination of the seeds was not effected by any of the treatments at three days and 180 days after treatment. Among all the treatments oils proved to be better. Hence it is concluded that oils especially coconut oil followed by niger and sesame oil as per availability may be recommended for checking C. chinensis in Rajma beans under storage.
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