title: Evaluation of Bactimos wettable powder, granules and briquets against mosquito larvae in Malaysia.
abstract: There was high mortality in late larval instars of Aedes albopictus (Skuse) from laboratory and field populations in the 24 h after application of three Bactimos formulations of Bacillus thuringiensis H-14. Mortalities were higher and residual effects longer in field populations than in laboratory ones. Briquets were the most effective formulation (mortality 96-100% after five weeks; 76-92% after eight weeks). Culex quinquefasciatus Say larvae were tested only against the briquet formulation. In the laboratory, 100% mortality of late instars persisted for six weeks and dropped to 48-88% after eight weeks. In the field, late instars were reduced by 62-87% after 24 h and 69-72% after one week compared to increases in an untreated population of 160% and 176% respectively.
authors.affiliation: Department of Parasitology & Medical Entomology, National University of Malaysia, Kuala Lumpur.
authors.forename: S
authors.initials: S
authors.lastname: Sulaiman
authors.forename: J
authors.initials: J
authors.lastname: Jeffery
authors.forename: A R
authors.initials: AR
authors.lastname: Sohadi
authors.forename: H
authors.initials: H
authors.lastname: Yunus
authors.forename: V
authors.initials: V
authors.lastname: Busparani
authors.forename: R
authors.initials: R
authors.lastname: Majid
mesh_terms: D000330:Aedes; D000818:Animals; D001413:Bacillus thuringiensis; D003465:Culex; D007814:Larva; D008296:Malaysia; D010572:Pest Control, Biological