Method: the kinds and number of pests and their natural enemies were investigated at regular intervals and on the fixed trees.
方法：在枸杞生长季节调查枸杞害虫及其天敌种类，定期、定点调查害虫及天敌发生数量。
There is a grey positive correlation between Numbers of the total individuals and the total species, individual Numbers of the pests and their natural enemies in a arthropod community.
在一个节肢动物群落中总个体数与种类数、天敌总个体数与害虫总个体数具有灰正相关关系。
The main natural enemies of the pests on tobacco of Yunnan and their role on natural control of the pests were reviewed.
介绍了云南省烟草主要害虫天敌资源和天敌昆虫的自然控制作用。
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