Evaluation of a new spraying machine for barrier treatment and penetration of bifenthrin on vegetation against mosquitoes

Autor(es): Fulcher Ali; Farooq Muhammad; Smith Michael L; Li Chun-Xiao; Scott Jodi M; Thomson Emily; Kaufman Phillip E; Xue Rui-De

Resumo: The effectiveness and penetration of a novel, truck-mounted mist sprayer (3WC-30-4P provided by American LongRay) was evaluated with bifenthrin in a large, park-like setting with historic floodwater and woodland mosquito populations. Efficacy evaluations were determined through adult population collections and excised leaf bioassays. Trapping results showed a mean reduction of 77% in mosquito populations in the treated area for 5 sampling events up to 4 wk posttreatment. Leaf bioassays revealed an average mortality of 80% at 2.7 m and 51% at 5.5 m against laboratory-reared Aedes aegypti for 5 posttreatment samples. Leaves collected from the treated areas caused higher mortality at distances closer to the sprayer, though the distance and coverage of bifenthrin application was effective up to 5 m.

Palavras-Chave: Aedes aegypti; Mist spray machine; Barrier treatment; Bifenthrin; Vegetation

Imprenta: Journal of the American Mosquito Control Association, v. 31, n. 1, p. 85-92, 2015

Identificador do objeto digital: https://doi.org/10.2987/14-6424R.1

Descritores: Aedes aegypti - Public health

Data de publicação: 2015