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African Journal of Traditional, Complementary and Alternative Medicines
African Ethnomedicines Network
ISSN: 0189-6016
Vol. 8, No. 4, 2011, pp. 447-451
Bioline Code: tc11059
Full paper language: English
Document type: Research Article
Document available free of charge

African Journal of Traditional, Complementary and Alternative Medicines, Vol. 8, No. 4, 2011, pp. 447-451

 en Molluscicidal Effect of Piper Guineense check for this species in other resources
Ukwandu, NCD; Odaibo, AB; Okorie, TG & Nmorsi, OPG

Abstract

The study was undertaken to assess the dosage-mortality ratio and toxic effects of Piper guineense check for this species in other resources fruit extracts on the adults of Biomphalaria pfeifferi check for this species in other resources , the snail intermediate host of Schistosoma mansoni check for this species in other resources , which causes intestinal schistosomiasis. The result showed significant toxic effects with crude ethanol and hot water fruits extracts. The estimated lethal dose concentration by arithmetic method (LC50 and LC90) using both crude ethanol and hot water fruit media extracts were found to be (0.10 ± 0.04, 0.9 ± 0.2) mgl-1 respectively for ethanolic extract and (5.0 ± 1.4, 8.5 ± 0.7) mgl-1 respectively for hot water extract. Ethanolic extract was more potent than hot water extract. An all or none phenomenon appeared characteristic of the biological activity of these extracts. There was significant decrease in oviposition rate (p < 0.02). The extract from the fruits of this tropical plant holds promise in the control of Biomphalaria pfeifferi.

Keywords
Molluscicide; Piper guineense; fruits; Biomphalaria pfeifferi; ethanol; hotwater extracts

 
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