It was found that LC_(50)of Alphamethrin aganist the larvae of Culex pipiens pallens arid Aedes albopictus Were 0.9812 and 3.2423 ppb. ,the LT_(50)of Fendona for the adults of Cx.

• 顺式氯氰菊酯对淡色库蚊和白纹伊蚊幼虫的 LC50分别为0.；9812和3