arachnicide

例句：

1. 1.The farmer used a poisonous spray to kill the spiders in his garden.
   农民用一种有毒的喷雾剂来杀死他花园里的蜘蛛。
2. 2. The spider-killer was designed to quickly and efficiently eliminate dangerous insects.
   这种蜘蛛杀手被设计用来快速而有效地消灭危险的昆虫。
3. 3. The spider-poisoner is a common household item that can be used to control pests.
   蜘蛛毒药是一种常见的家庭用品，可以用来控制害虫。