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根据系统调查和大田普查结果,通过对天敌与麦蚜在数量、时间、空间上的追随关系进行相关分析,表明淮北麦区七星瓢虫是麦田主要优势天敌,龟纹瓢虫和蚜茧蜂是次要优势天敌。
According to the results of systematic investigation and field survey, through the correlation analysis of natural enemies and wheat aphids in the aspects of quantity, time and space, the results showed that the ladybirds in Huaibei wheat field are the dominant predators in wheat field, and the ladybugs and the aphids Secondary predators.