Beta-cyfluthrin, a synthetic pyrethroid for mosquito control.
Beta-cyfluthrin (OMS 3051), a new synthetic pyrethroid and one of the stereoisomers of cyfluthrin, was studied for insecticidal activity against eight mosquito species. Its larvicidal activity with LC50 values of 5.62 x 10(-5) and 1.19 x 10(-4) mg/l respectively for Culex quinquefasciatus and Aedes aegypti was comparable with that of deltamethrin. This pyrethroid was more effective against the larvae of Armigeres subalbatus (LC50 - 7.76 x 10(-7)) and the adults of Anopheles culicifacies LT50 - 27.76 min at 2.0 mu/cm2) than the other species tested. Residual efficacy at 50 mg(ai)/m2 was more persistent (for 14-25 weeks) on thatch and asbestos among the four treated surfaces. This compound also elicited oviposition deterrent activity at 0.001 mg/l against Cx.quinquefasciatus. beta-cyfluthrin is a good insecticide for mosquito control. However, care should be exercised while using it as a larvicide in breeding habitats considering its toxicity to fish.
Vasuki
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Vector Control Research Centre, Indian Council of Medical Research, Pondicherry.
Rajavel
A R
AR
D000328:Adult; D000818:Animals; D009033:Culicidae; D005260:Female; D006801:Humans; D007306:Insecticides; D007814:Larva; D008297:Male; D009032:Mosquito Control; D009570:Nitriles; D011722:Pyrethrins
D007306:Insecticides; D009570:Nitriles; D011722:Pyrethrins; C052570:cyfluthrin