living insecticide

例句：

1. 1.The new living insecticide is more effective than the old one.
   这种新的活体杀虫剂比旧的更有效。
2. 2.We need to use living insecticides to control the population of pests.
   我们需要使用活体杀虫剂来控制害虫的数量。
3. 3. The living insecticide was sprayed on the plants to kill the larvae.
   这种活体杀虫剂被喷洒在植物上，以杀死幼虫。