title: Molluscicidal and cercaricidal efficacy of Acanthus mollis and its binary and tertiary combinations with Solanum nigrum and Iris pseudacorus against Biomphalaria alexandrina.
abstract: Molluscicidial activity of leaves of Acanthus mollis against Biomphalaria alexandrina were evaluated. Its petroleum ether extract (LC50 values = 6.92 mg/L) was more potent than Solanum nigrum and Iris pseudacorus extracts. A binary combination (1:1) of A. mollis and S. nigrum, as well as, a binary combination (1:1) of A. mollis and I. pseudacorus extracts showed additive effect on snails (24 hr LC50: 5.09 mg/l and 3.76 mg/l respecttively). A tertiary combination (1:1:1) of A. mollis, S. nigrum and I. pseudacorus extracts (24 hr LC50: 4.01 mg/l) showed good result. Also, petroleum ether extract of A. mollis leaves killed Schistosoma mansoni cercariae at concentrations of 20, 10 and 5 mg/l within 30, 45 min. and an hour respectively. Mortality increased with increasing exposure time and concentration.
authors.affiliation: National Hepatology and Tropical Medicine Research Institute, General Organization of Teaching Hospitals and Institutes, MOHP and Department of Parasitology, Faculty of Medicine, Ain Shams University, Cairo 11566, Egypt.
authors.forename: Amer H
authors.initials: AH
authors.lastname: Ahmed
authors.forename: Manal M A
authors.initials: MM
authors.lastname: Rifaat
mesh_terms: D027901:Acanthaceae; D000818:Animals; D001700:Biomphalaria; D007498:Iris; D008975:Molluscacides; D010572:Pest Control, Biological / Q000379:methods; D010936:Plant Extracts / Q000494:pharmacology; D018515:Plant Leaves / Q000737:chemistry; D032324:Solanum nigrum
chemical_list: D008975:Molluscacides; D010936:Plant Extracts