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目的 观察不同剂型的拟除虫菊酯浸泡棉蚊帐和尼龙蚊帐对中华按蚊和嗜人按蚊的效果。方法 采用 WHO推荐的接触筒强迫接触法。结果 棉蚊帐和尼龙蚊帐浸药后 180 d,拜虫杀(SC12 .5 %高效氟氯氰菊酯 ) 12 .5 mg a.i/ m2 ;杀飞克 (EW5 %氟氯氰菊酯 ) 15 m g a.i/ m2 ;克敌 (SC2 .5 %溴氰菊酯 ) 12 .5 mg a.i/ m2 ;凯素灵 (EC2 .5 %溴氰菊酯 ) 15 mg a.i/ m2和奋斗呐 (WP2 .5 %顺式氯氰菊酯 ) 2 5 m g a.i/ m2对中华按蚊和嗜人按蚊的毒效仍达 10 0 %。结论 在疟疾流行季节前 ,用杀虫剂浸泡蚊帐 1次 ,能够对媒介按蚊起到有效防制。
Objective To observe the effects of different formulations of pyrethroid soaked mosquito nets and nylon mosquito nets on Anopheles sinensis and Anopheles anthropophagus. Methods The WHO recommended contact tube forced contact method. RESULTS: Cotton insecticide and nylon mosquito nets were dipped for 12 weeks at 180 d after insecticide treatment (SC12.5% beta-cypermethrin) 12.5 mg ai / m2; Eifex (EW5- cyfluthrin) 15 mg ai / m2; SC2 .5% deltamethrin) 12.5 mg ai / m2; Kai Suling (EC2 .5% deltamethrin) 15 mg ai / m2 and Soxhlet (WP2.5% cypermethrin) 2 5 mg ai / m2 of Anopheles sinensis and Anopheles toxicity is still up to 10%. Conclusions Immersing mosquito nets once with insecticide before the malaria season can effectively prevent Anopheles vectors.