title: Efficacy of dry powders from Bacillus sphaericus: RB 80, a potent reference preparation for biological titration.
mesh_terms: D000818:Animals; D000852:Anopheles / Q000254:growth & development; D001407:Bacillus; D003465:Culex / Q000254:growth & development; D007814:Larva; D010572:Pest Control, Biological / Q000592:standards*