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目的：在实验室中观察拟除虫菊酯浸泡蚊帐布对致倦库蚊的持效。方法：强迫接触法。结果：浸泡255天后，二氯苯醚菊酯（EC，500mga．i．／m2）、溴氰菊酯（WP，EC，SC，25mga．i．／m2）和顺式氯氰菊酯（EC，SC，40mga．i．／m2）仍然有效。结论：同一种拟除虫菊酯不同剂型浸泡蚊帐布，对致倦库蚊的持效没有差异。
OBJECTIVE: To observe the effectiveness of pyrethroid-impregnated mosquito net cloth on Culex pipiens quinquefasciatus in the laboratory. Method: Forced contact method. RESULTS: Permethrin (EC, 500 mg a.i./m2), deltamethrin (WP, EC, SC, 25 mg a.i./m2) and cis- cypermethrin (EC, SC, 40 mga .i. / M2) Still valid. Conclusion: There is no difference in the efficacy of Culex pipiens pallens between the same pyrethroid insecticide-impregnated mosquito net cloth.