title: Operational studies with Valent VectoLex WDG, Bacillus sphaericus, in three Florida Mosquito Control Districts.
abstract: VectoLex WDG, Bacillus sphaericus (Valent BioSciences Corporation), was evaluated in 3 Florida Mosquito Control Districts under operational conditions. Application rates were 0.5 and 1.0 lb/acre and an untreated control in each district. Study sites included woodland ponds, residential areas such as catch basins, and commercial business retention ponds. Pretreatment and posttreatment assessments were made with a standard dipper at designated dipping stations. The most prevalent mosquitoes included Culex quinquefasciatus, Culex nigripalpus, Culex erraticus, Ochlerotatus infirmatus, Anopheles crucians, Anopheles quadrimaculatus, and Psorophora spp. VectoLex WDG was effective for 24-35 days posttreatment with one application.
authors.affiliation: John A. Mulrennan Sr. PHEREC, FAMU, 4000 Frankford Avenue, Panama City, FL 32405, USA.
authors.forename: Tom
authors.initials: T
authors.lastname: Floore
authors.forename: Ken
authors.initials: K
authors.lastname: Rolen
authors.forename: Gerardo
authors.initials: G
authors.lastname: Medrano
authors.forename: Flo
authors.initials: F
authors.lastname: Jones
mesh_terms: D000818:Animals; D000852:Anopheles; D001407:Bacillus; D003465:Culex; D009033:Culicidae; D005431:Florida; D007814:Larva; D010572:Pest Control, Biological