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Prof. Ahmed Abdel-Ghafar Abdo Darwish :: Publications:

Title:
OXIC EFFECT OF EXTRACTS AND POWDERS OFSOME PLANTS AGAINST THE COWPEA BEETLE (Callosobruchus maculutus, F.)
Authors: El-Lakwah, F.A.*; Darwish, A.A.* and Halawa, Z.A.
Year: 1996
Keywords: Not Available
Journal: Not Available
Volume: Not Available
Issue: Not Available
Pages: Not Available
Publisher: Not Available
Local/International: Local
Paper Link: Not Available
Full paper Ahmed Abdel-Ghafar Abdo Darwish_001.jpg
Supplementary materials Not Available
Abstract:

Laboratory experiments were carried out on the relative toxicity of Capsicum fruits (Capsicum spp.), Clerodendron (Clerodena’ron inerme), Eucalyptus (Eucalyptus glob utus) and Duranta leaves Doranta plumieri) against the adults of cowpea beetle (C’allosobruchus maculatus, F.) using various concentrations of 10, 5, 2.5, 1.25 and 0.625% (w/v) with extracts and 4, 2 and 1% with plant powders to evaluate mortality, reduction in Fi Progeny and repellency effect. Results showed that mortalities of acetone and petroleum ether extracts were somewhat higher at the highest concentration of 10%, whereas the capsicum extracts were the most effective one. Petroleum ether extract was mo*’e effective on mortalities and reduction in F1 progeny than acetone extract. Plant powders indicated lower effects on mortalities and reduction in progeny in comparison to the extracts. During the observation period of 15 days, extracts at various concentrations had low mean average repellency effects ranged from 17-37% and 16-32% for petroleum ether and acetone extract, respectively.

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