title: Mosquito larvicidal effectiveness of EcoBio-Block S: a novel integrated water-purifying concrete block formulation containing insect growth regulator pyriproxyfen.
abstract: EcoBio-Block S, a novel controlled release system (CRS) for the insect growth regulator pyriproxyfen, uses a water-purifying concrete block system (EcoBio-Block) composed of a porous volcanic rock and cement, and it incorporates the aerobic bacterial groups of Bacillus subtilis natto. EcoBio-Block S showed high inhibitory activity against mosquito emergence as well as a water-purifying effect. Chemical analysis and bioassay showed that EcoBio-Block S provides a high-performance CRS that controls the release of pyriproxyfen at low levels according to "zero order kinetics".
authors.affiliation: Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, Japan.
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Kawada
authors.forename: Susumu
authors.initials: S
authors.lastname: Saita
authors.forename: Kozue
authors.initials: K
authors.lastname: Shimabukuro
authors.forename: Masachika
authors.initials: M
authors.lastname: Hirano
authors.forename: Masayuki
authors.initials: M
authors.lastname: Koga
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Iwashita
authors.forename: Masahiro
authors.initials: M
authors.lastname: Takagi
mesh_terms: D000330:Aedes; D000818:Animals; D001412:Bacillus subtilis; D007814:Larva; D009032:Mosquito Control / Q000379:methods*; D011725:Pyridines; D014867:Water
chemical_list: D011725:Pyridines; D014867:Water; C055613:pyriproxyfen