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选用赛虫净、益梨克虱、快杀灵３种新农药对梨叶甲的室内触杀毒力测定结果表明，毒力次序为：１％益梨克虱（ＬＣ５０＝４．７３ｍｇ／ｋｇ，相对毒性指数０．１６００）＞３０％赛虫净（ＬＣ５０＝１５０．１８ｍｇ／ｋｇ，相对毒性指数５．０７７５）＞２５％快杀灵（ＬＣ５０＝３７８．６２ｍｇ／ｋｇ，相对毒性指数１２．８０１０）。
The results showed that the order of virulence was 1% pearl lice (LC50 = 4.73mg / kg, Relative toxicity index 0.1600)> 30% net safety (LC50 = 150.18mg / kg, relative toxicity index 5.0775)> 25% ).