The Toxic Effect Of Some Plant Extracts On Adults Red Flour Beetle, Tribolium castaneum (Herbst) ( Coleoptera: Tenebrionidae)
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Toxic effect, extracts, rusty flour beetle.
Abstract
The present study was conducted at the laboratories of Zoology Department, Faculty of Science, University of Sebha to indicate the effect of ethanoli extract for Piper nigrum L.(Black pepper)fruits, Piper rubra L.(Red pepper) fruits, Nigella Sativa L.( Black cumin) seeds, the bark of Cinnamomum zeylanicum L.( Cinnamon) plant , Syzygiumar oramaticum L. (Cloves) floral buds, Mentha longifolia L.( Mint) plant leaf , Allium sativum L.( Garlic) fruits, Cuminnum cyminum L.( Cumine) seeds on adults the red flour beetle, Tribolium castaneum (Herbst) after 24, 48 hours and 7 days of Treatment The results of this study showed that the extracts used had a significant effect on the death rates of adults and increased the effect of increasing concentration and increase the exposure period of the extract. The ethanol extract of cloves, garlic, red pepper and black pepper obtained the highest percentage of death, The plant extracts used also had a toxic effect of red beetle beetle eggs and the toxicity increased with exposure time. The ethanol extract of cloves and garlic was the highest toxicity followed by red pepper extract and black pepper extract. The cumin and cinnamon extract was the least toxic.
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