麦蚜是我省小麦的主要害虫,近年来一些地区因麦蚜危害损失十分严重。如玉溪市1986年种植小麦9.47万亩,发生麦蚜危害后用药剂防治2～3次,仍损失小麦29.64万斤,说明单一的药剂防治难以有效地控制麦蚜危害。为探讨麦蚜的综合防治途径,自1986年以来在昆明、玉溪等地进行了一系列试验研究,探明了麦蚜的种类及发生消长规律、天敌种类及发生消长与麦蚜种群发生消长的关系,鉴定出一些相对抗蚜的品种 Wheat aphid is the main pest of wheat in our province, in some areas due to the damage caused by wheat aphid is very serious. For example, in Yuxi City, in 1986, 94,700 mu of wheat was planted. After the occurrence of wheat aphid, the pesticides were treated 2 to 3 times and 296,400 kg of wheat were still lost. This shows that it is difficult to effectively control the wheat aphid by a single agent. In order to explore the comprehensive control of wheat aphids, a series of experimental studies have been carried out in Kunming and Yuxi since 1986 to ascertain the species and occurrence of the wheat aphids, the growth and decline of natural enemies and the population growth and decline of the wheat aphids Relationship, identified some relative aphids resistant varieties