大豆蚜虫是吉林省大豆上的重要害虫。一般发生年份,发生面积占大豆面积45.6%,有蚜株率75.9%,大发生年份发生面积占大豆面积64%,有蚜株率在88%以上,对大豆为害较大。为搞好大豆蚜虫的预测和防治,我们借助于数理统计分析方法,分析了大豆蚜虫发生与气象因素之间的关系,提出了预测和防治指标,供参考。材料与方法材料取自吉林省不同地区的36～81个大豆蚜虫测报点的调查资料。各测报点从1975～ Soybean aphid is an important pest on soybean in Jilin Province. Occurred in the year, the occurrence of the area accounted for 45.6% of the soybean area, with aphid strain rate of 75.9%, occurred in the occurrence of large area accounted for 64% of the soybean area, aphid strain rate above 88%, greater damage to soybeans. In order to improve the prediction and control of soybean aphids, we analyzed the relationship between the occurrence of soybean aphids and meteorological factors by means of mathematical statistics and analysis, and put forward the prediction and control indexes for reference. MATERIALS AND METHODS Materials The survey data of 36 ~ 81 soybean aphids reported in different areas of Jilin Province were collected. The test points from 1975 ~