title: [The initial activity and persistance of an experimental larvicide with a base of Bacillus thuringiensis var. israelensis and a commercial preparation containing the organophosphorus insecticide temephos].
abstract: The larvicide activity of the experimental preparation SAN 402 I WDC containing B. Thuringiensis var. Israelensis and that of Abate 500 E (44 % temephos) were tested on the larvae of Aedes aegypti. The studies were performed on the following media: distilled water, pure and buffered at pH 9, 7 and 4 and pond water whether or not free from materials in suspension. The activity of both preparations is not influenced by the composition of the media, exception made for the presence of materials in suspension. The persistance varies according to the kind of the media and the concentration level. It is in general rather low. Both preparations behave rather similar, the microbial insecticide however is more influenced by the presence of materials in suspension.
mesh_terms: D000330:Aedes; D000818:Animals; D001413:Bacillus thuringiensis; D005618:Fresh Water; D007306:Insecticides / Q000494:pharmacology*; D007814:Larva; D000002:Temefos / Q000494:pharmacology*; D013997:Time Factors
chemical_list: D007306:Insecticides; D000002:Temefos
vernacular_title: Etude sur l'activite initiale et la persistance d'un larvicide experimental a base de Bacillus thuringiensis var. israelensis et d'une preparation commerciale contenant l'insecticide organophosphore temephos.