Pestcide plays an important role in preventing and curing insect pest. The use of single drug has some prohibitions, while the mixture of several kinds of drug may solve these deficiencies.
杀虫剂对于防治病虫害起着十分重要的作用，但是单一使用原药有许多局限性。
Pestcide plays an important role in preventing and curing insect pest. The use of single drug has some prohibitions, while the mixture of several kinds of drug may solve these deficiencies.
杀虫剂对于防治病虫害起着十分重要的作用，但是单一使用原药有许多局限性。
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