Evaluation of Some Plant Molluscicides Against a Freshwater Snail Lymnaea luteola, the Vector of Animal Schistosomiasis

The extracts of plant species including Sapindus trifoliatus, Acacia concinna, Madhuca indica and Phytolacca acinosa were evaluated for their molluscicidal properties against the freshwater snail Lymnaea luteola, a vector of animal schistosomiasis. The methanol extracts of the seeds were tested against adults and the results showed S. trifoliatus as the most toxic, followed by M. indica, P. acinosa and A. concinna. Hence, the N-butanol extract of S. trifoliatus was tested against both adults as well as eggs of L. luteola. The results indicated that the N-butanol extract was more toxic than the methanol extract and the eggs were more susceptible than adults.