[The mosquitocidal efficacy of microcapsules of alpha-cypermethrin against Anopheles sinensis].
The efficacy of spraying of alpha-cypermethrin microcapsule for the control of Anopheles sinensis was investigated when alpha-cypermethrin microcapsule was sprayed at 0.5 g/m2, the KT50 was 7.9 min and a 100% of 24 hours' mortality of An. sinensis, the efficacy being similar to that of the emulsion. 180 days after spray, the KT50 was 28.2 min, the 24 hours' mortality was 85.7%, the residual efficacy was 3 times over that of the emulsion. In the mimic field experiment, similar results were obtained. In the field trial, the residual efficacy of the alpha-cypermethrin microcapsule was 5.9 times that of the emulsion. Alpha-cypermethrin microcapsules is recommended as a good formulation of mosquitocide for mosquito control, considering its mosquitocidal efficacy and residual efficacy.
Pan
K Y
KY
Department of Parasitology, Nanjing Medical College.
Ye
B H
BH
Zhi
C L
CL
D000818:Animals; D000852:Anopheles; D002214:Capsules; D007306:Insecticides; D009032:Mosquito Control; D011722:Pyrethrins
D002214:Capsules; D007306:Insecticides; D011722:Pyrethrins; C017160:cypermethrin