title: Field trials to control schistosome intermediate hosts by the plant molluscicide Ambrosia maritima L. in the Senegal River Basin.
abstract: Several field experiments were carried out in Senegal to evaluate the molluscicidal activity of Ambrosia maritima L. Applications of 400 mg L-1 of dry leaves of the plant in creeks of the Lampsar river did result in a reduction of Bulinus spp of 54-56% 2 weeks after treatment. Treatment of a closed irrigation canal caused a reduction of the density of Biomphalaria pfeifferi up to 77% 2 weeks after the application of 150 mg L-1 and 300 mg L-1. In both trials, however, a quick increase in the snail density was observed after treatment. It is concluded that the large amounts of crude plant material required to achieve snail reductions of less than 80% compromise the use of A. maritima in schistosomiasis control programmes.
authors.affiliation: Department of Parasitology, Ecole Inter-Etats des Sciences et de Médecine Vétérinaries, Dakar, Senegal.
authors.forename: J
authors.initials: J
authors.lastname: Belot
authors.forename: S
authors.initials: S
authors.lastname: Geerts
authors.forename: S
authors.initials: S
authors.lastname: Sarr
authors.forename: A M
authors.initials: AM
authors.lastname: Polderman
mesh_terms: D000818:Animals; D001700:Biomphalaria; D002033:Bulinus; D004197:Disease Reservoirs; D006790:Host-Parasite Interactions; D007783:Lactones / Q000032:analysis; D008975:Molluscacides / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D012552:Schistosomiasis / Q000517:prevention & control*; D012675:Senegal; D012717:Sesquiterpenes / Q000032:analysis
chemical_list: D007783:Lactones; D008975:Molluscacides; D012717:Sesquiterpenes