Abstract

Aim: Main purpose of the study was to assess molluscicidal potency of hot pepper (Capsicum chinense) and lemon grass (Cambopogan citratus) extract on Bulinus globosus snails.

Method and materials:  Snail were collected and acclimatized in laboratory conditions, Lemongrass was collected from the surrounding while Capsicum chinense was purchased from market. Materials were washed and air dried and pulverized into powder form and aqueous extract was prepared. Ten experimental animals were kept in each aquarium, and exposed to different concentrations of aqueous extracts continuously for 96 h.

Results: Mortality was recorded at 12 h, 24 h, 48 h, 72 h and 96 hrs. intervals and no response to a needle probe was taken as evidence of death. Both extract possessed molluscicidal activity against snails but Capsicum chinense was less potent than lemon grass. In both cases mortality was time and dose dependent.

Conclusion: It was concluded that plants have medicinal and culinary properties and culturally well accepted and may be used for controlling mollusc intermediate host of schistosomiasis.

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