研究表明，良好的农业生态环境为农田提供了丰富的天敌资源，对一些主要害虫具有明显的自然控制作用；
The research shows that nicer environments enriched the abundances of natural enemies in crop fields, which markedly controlling some major insect pests.
两栖类动物不仅在维持生态平衡、控制害虫等方面有重要作用，而且有重要的经济和药用等价值。
Amphibians play an important role in maintenance of ecological balance, control pests and so on, and they have important economic and medicinal value.
环链拟青霉是一种虫生真菌，是皖南宣城敬亭山马尾松林生态系中的优势种，在松林控制害虫起到了至关重要的作用。
Paecilomyces cateniannulatus, an entomogenous fungus and one of the predominant species of the fungi in a Masson spine plantation ecosystem, plays an important role on forest pest control.
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