在室内恒温条件下,采用浸溃法测定烯唑醇、吡虫清及其混剂对麦蚜的联合毒力作用,用 Finney 法和 Sun 法评价两种药剂的联合作用。结果表明:烯唑醇与吡虫清以5:5配比的共毒系数(CTC)最大,对麦蚜的共毒系数达462.2。依次配比配成6.0%烯·吡 EC 进行田间药效试验,结果表明,此药剂对麦蚜具有良好的防治效果,使用浓度为15～20ppm 时,校正防效可达89.0%～96.2%,显示很好的市场开发价值。 Under the indoor constant temperature condition, the combined action of diniconazole, imidacloprid and their mixture against wheat aphid was determined by dipping method, and the combined action of the two agents was evaluated by Finney method and Sun method. The results showed that the ratio of 5: 5 diniconazole and imidacloprid had the highest co-toxicity coefficient (CTC) and the co-toxicity coefficient to wheat aphid reached 462.2. The results showed that the agent had a good control effect on wheat aphid. When the concentration was 15 ~ 20ppm, the calibration effect was 89.0% ~ 96.2% Shows good market development value.