麦长管蚜(Sitobion avenae F.)在我省小麦穗期发生重,为害大。大发生年份可减产小麦20～30%,且严重降低质量。生产上,迫切需要明确麦长管蚜发生数量变动规律,做出准确预报,从而采取经济有效的防治措施。本文根据1974年秋至1984年夏济 Wheat aphid (Sitobion avenae F.) occurred in our province during the wheat spike, great harm. Large occurrence of wheat can reduce the production of 20 to 30%, and seriously reduce the quality. Production, the urgent need to clear the number of wheat aphid changes in the number of occurrence, to make accurate forecasts, in order to take cost-effective control measures. This article is based on the autumn of 1974 to the summer of 1984