Investigations of Molluscicidal Activity of Certain Sudanese Plants Used in Folk-Medicine. Part IV*

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Abstract
50 plants indigenous to the Sudan and of common use in Sudanese folk-medicine, were screened for their molluscicidal activity, using two local snail vectors, Bulinus truncatus and Biomphalaria pfeifferi. At different concentrations 31 (62%) of these plant samples were found to be lethal to either one or both of the snail species. 28 (56%) proved to be lethal to Biomphalaria pfeifferi, 22 (44%) gave 100% mortality to Bulinus truncatus; while 19 (38%) killed both snail hosts (Table I). The seven most active molluscicidal plants were phytochemically screened for their active constituents; four of them showed the presence of saponins.

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