从1971年起,我们开始通过系统观察、田间随机调查和气象资料分析,对高粱蚜的发生发展规律进行了研究,在防治策略上争得了主动,防治效果随之提高。一、活动规律高粱蚜在当地一年发生15—20代。据我们观察,高梁蚜在当地主要在高粱根茬上越冬,白茅上也有越冬。卵株率的高低,产卵 Since 1971, we began to study the occurrence and development of sorghum aphids through systematic observation, random field investigation and meteorological data analysis. First, the law of activity Aphis gossypii 15-20 generation occurs in the local year. According to our observation, sorghum aphid mainly in the winter over the sorghum stubble, there are overwintering whitegrass. The level of egg plant height, spawning