Year: 2019, Issue: December

Assessment of the toxicity of blended plant extracts against the pulse beetle, 

Callosobruchus chinensis L.

Author:

P. C. Bhati

Keyword:

Toxicity, Delonix regia, Embilica officinalis, Callosobruchus chinensis

Efficacy of blended acetone extracts of Delonix regia and Embilica officinalis was studied against damage caused by Callosobruchus chinensis. The study revealed percent seed protection over control enumerated for 25%, 50%, 75% and 100% dose levels to be 46.645, 51.177, 55.867 and 72.021, respectively. Fecundity, egg viability and adult emergence were also adversely affected after treatment of cowpea seeds with the blended plant extract in the ratio of 1:1. The toxicity of the extracts, however, was found to be dose dependent.

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