Molluscicidal potency of four plant extracts on three pulmonate snails ( Gastropoda ) in Egypt | ||||
| Delta Journal of Science | ||||
| Article 12, Volume 36, Issue 3, December 2013, Page 246-253 PDF (1.2 MB) | ||||
| Document Type: Research and Reference | ||||
| DOI: 10.21608/djs.2013.139785 | ||||
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| Authors | ||||
| Sayed-Ahmed M. El-Tantawy; Mohamed F.A. Mansour; Heba M. Fala | ||||
| Zoology Department, Faculty of Science, Mansoura University, mansoura Egypt | ||||
| Abstract | ||||
| In the present study four types of plant extracts were used to affect three gastropods in Egypt. These plants were Calotropis procera, Pelargonium graveolens, Ethulia conyzoides and Euphorbia milii.The treated snails were the land snail or garden snail Eobania vermiculata and the two freshwater ones Lymnaea caillaudi and Biomphalaria alexandrina. Traditionally, the land snails demands very high concentrations in comparison with those for the freshwater snails. There was no effect to the extract of E. milii . The ethanol extract of E. conyzoides was highly more active than others on the snail E. vermiculata. While, the effect of E. conyzoides and E. milii on L. caillaudi and B. alexandrina were the most active according to the used concentrations. In comparison, the extract of E. milii exhibits the highest molluscicidal activity as it caused 50% or more mortality of L. caillaudi and B. alexandrina with the least concentrations. Moreover, the mortality rate of L. caillaudi was significantly higher than that of B. alexandrina , demonstrating a deffrential susceptibility to the ethanol extract of E. milii. | ||||
| Keywords | ||||
| Calotropis procera; Pelargonium graveolens; Ethulia conyzoides Euphorbia milii; Lymnaea caillaudi; Biomphalaria alexandrina; Eobania vermiculata | ||||
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