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۱Evaluation of the Molluscicidal Activity of Punica granatum, Calotropis procera, Solanum incanum and Citrullus colocynthis Against Biomphalaria arabica
اطلاعات انتشار: World Applied Sciences Journal، بيست و ششم،شماره۷، ۲۰۱۳، سال
تعداد صفحات: ۷
Snails control is considered the most effective method in reducing the transmission of bilharziasis. The molluscicidal activity of Punica granatum, commonly grown in Taif and three wild plants; Solanum incanum, Calotropis procera and Citrullus colocynthis was investigated against Biomphalaria arabica, the intermediate host of Schistsoma mansoni, in Saudi Arabia. Alcohol extracts of fruits, leaves, stems and roots of the tested plants were evaluated for their lethal activity against adult snails of B. arabica and embryos of egg–masses. All the four tested plants exerted toxic lethal effect against both adult snails and their embryos. The extract of the rind of P. granatum fruit was significantly (p 0.05) more potent than other parts of the same plant and extracts of the other plants.The LC50 and LC90 of the fruit rind of P. granatum extract were 48 and 100 ppm respectively, while those of the other tested plants were 325–600 ppm and 575–950 ppm respectively. On the other hand, the LC50 and LC90 of P. granatum fruit against embryos of snail egg mass were 65 and 150 ppm respectively and for the of the other tested extracts, they ranged between 425–1000 ppm and 650–>1000 ppm respectively. It may be concluded that of the four tested plants, the extract of pomegranate rind could be considered as a candidate for control of B. arabica snail. P. granatum extract also has the advantage of being friendly to the environment as it is safe to fishes and animals.
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