Activity of lambda-cyhalothrin applied as an ultralow volume ground treatment against Anopheles quadrimaculatus adults.
Lambda-cyhalothrin was evaluated as an ultralow volume ground adulticide treatment at rates of 0.25, 0.5 and 1.0 g/ha. Resmethrin, a standard adulticide, was applied at a rate of 1.96 g/ha. All treatments provided greater than or equal to 95% control up to 50 m from the spray route. The highest rate of lambda-cyhalothrin and the resmethrin standard provided greater than or equal to 95% control up to 200 m, which is twice the distance normally assessed in this type of testing. Control was reduced at 200 m for the 0.25 and 0.5 g/ha rates of lambda-cyhalothrin, which provided 73 and 88% mortality, respectively. Lambda-cyhalothrin appears to have the insecticidal activity required for operational mosquito control.
Weathersbee
A A
AA
Department of Entomology, University of Arkansas, Fayetteville 72701.
Meisch
M V
MV
Inman
A
A
Dame
D A
DA
D000818:Animals; D000852:Anopheles; D001131:Arkansas; D007306:Insecticides; D009032:Mosquito Control / Q000379:methods; D009570:Nitriles; D011722:Pyrethrins
D007306:Insecticides; D009570:Nitriles; D011722:Pyrethrins; C037304:cyhalothrin; C100036:resmethrin