研究麦蚜与其天敌种群在数量及空间上的动态关系 ,结果表明 ,麦长管蚜、麦二叉蚜在麦田的水平格局为聚集分布 ,其天敌呈现为随机分布 ,在垂直格局上龟纹瓢虫对麦二叉蚜有负取向相关 ,龟纹瓢虫对麦长管蚜种群数量有明显的追随跟踪攻击作用 The quantitative and spatial dynamics of wheat aphids and their natural enemies were studied. The results showed that the horizontal distribution of wheat aphid and wheat aphid in the field was aggregated, and their natural enemies showed random distribution. In the vertical pattern, The insects had a negative orientation related to the wheat aphid Aphis gossypii, and the tortoise ladybug had a significant follow-up attack on the population of the aphid Aphis gossypii