麦蚜在我县小麦上近几年日趋发生严重常由于忽视防治或防治过晚,造成减产。为明确麦蚜发生特点和防治适期,从1981—1984年连续对麦蚜的发生消长规律及其防治进行了试验观察。 Wheat aphids in our county wheat growing serious in recent years often overlooked because of prevention or control too late, resulting in reduced production. In order to clarify the occurrence characteristics of wheat aphids and control the appropriate period, from 1981 to 1984 consecutive occurrence and decline of wheat aphid law and its prevention and treatment were observed.