parasiticide

例句：

1. 1. The farmers use parasiticide to control the pests in their crops.
   农民们使用杀虫剂来控制农作物中的害虫。
2. 2. Parasiticide is a type of pesticide that kills parasites without harming the host.
   杀虫剂是一种杀灭寄生虫而不伤害宿主的农药类型。
3. 3.The chemical parasiticide was found to be highly effective against the malaria parasite.
   这种化学杀虫剂被发现对疟原虫具有很高的有效性。