chemical insecticide meaning in English

化学杀虫剂

The control of cucurbit wilt has been based on chemical insecticides applied for beetle control .
防治葫芦科植物萎蔫病，至今仍依靠使用化学药剂防治甲虫。
It is not my contention that chemical insecticides must never be used
我不是说人类决不能使用化学杀虫剂。
It is compatible with many pesticides and can be used mixed with chemical insecticides
与许多杀虫剂兼容，可与化学杀虫剂混用。
It lacks transmission and spreading facilities , it must be applied like a chemical insecticide
缺乏传播扩散工具，只能象化学药剂一样施用。