title: [Comparison of mosquito larvicidal efficacy between microbial encapsulated BTI (EBTI) and standard BTI (SBTI)].
abstract: A comparative study was conducted on the efficacy of mosquito larvicides EBTI and SBTI. The results showed that: 1. The residual efficacy of EBTI was remarkably higher than that of SBTI at 0.007-0.002ppm BTI concentration (P < 0.01), the mosquito larvae mortality of EBTI remained 100% until the 4th week; in contrast, the mosquito larva mortality of SBTI gradually and obviously declined from the 2nd to 4th week after treatment (x2 = 8.17-24.08), and reached 0 at the 4th week. 2. The lowest BTI concentration of EBTI at which a high efficacy persisted for 4 weeks was 0.007ppm BTI, the mosquito larva mortality remaining 100%.
authors.affiliation: Nanjing Medical College.
authors.forename: Z H
authors.initials: ZH
authors.lastname: Zhang
authors.forename: S
authors.initials: S
authors.lastname: Ratanatham
authors.forename: E
authors.initials: E
authors.lastname: Zomer
authors.forename: A
authors.initials: A
authors.lastname: Spielman
authors.forename: B H
authors.initials: BH
authors.lastname: Ye
authors.forename: Z G
authors.initials: ZG
authors.lastname: Lu
authors.forename: Y J
authors.initials: YJ
authors.lastname: Zhang
authors.forename: Z M
authors.initials: ZM
authors.lastname: Shi
mesh_terms: D000818:Animals; D000852:Anopheles; D001413:Bacillus thuringiensis / Q000145:classification; D002214:Capsules; D007814:Larva; D010572:Pest Control, Biological
chemical_list: D002214:Capsules