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

Title:
TOXIC EFFECTS OF PULVERIZED BLACE PEPPER (PIPER NIGRUN. L) ON SOME STORED PRODUCT INSECTS
Authors: El-Lakwah, F.A.M.; Omnia N. Khaled and Darwish. A.A.
Year: 1994
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:

Pulverized black pepper seeds were evaluated in the lab oratory for toxicity, reduction of Fi progeny and repellency effect against aduflts of Sitophilus oryzae (L.), Rhizoper— tha dominica (F.) and ‘ribolium castanetun (Herbst.). Data showed that black pepper powder was very toxic to . y and gave complete protection to stored wheat after 7 days from the treatment. Whereas, it had relative toxic effects against T. castaneum (73%), and moderately toxic to R. dominica adults at 4% concentration for the same period. Reduction of the Fi generation at concentrations between l—4% was in the range of 100%, 38—91% and 42—78% for S. T. castaneujn and R. dominica, respectively. Potential repellency of the pepper powder was very obvious to T. castaneum adults at all tested concentrations. While the repellency effect to R. dominica and S. oryzae adult was only high at 2 and 4% concentrations. The results indi cated that black pepper powder could be used as a protectant for grain against certain stored product insects.

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