１９９３～１９９４年在山西太原、祁县进行了２５％咪蚜胺可湿性粉剂防治棉蚜田间小区药效试验。结果表明：供试咪蚜胺的三种剂量对棉蚜均有良好的防治效果，尤其每公顷用３００克剂量最为经济有效。在棉蚜发生期。以此剂量喷药防治，２～１４天的防效可达到９５～１００％，持效期可维持１４天以上。其防效和持效明显好于对照农药４０％久效磷水可溶剂，是一种较理想的防治抗性棉蚜的替代药剂 1993 ~ 1994 in Taiyuan, Shanxi, Qixian conducted a 25% imidacloprid wettable powder control cotton aphid field plot efficacy test. The results showed that all the three doses of test imidacloprid had a good control effect on cotton aphid, especially the dosage of 300 g per hectare was the most economical and effective. In the cotton aphid occurrence period. With this dose of spray prevention and control, 2 to 14 days of control can reach 95 to 100%, duration can be maintained for more than 14 days. Its control effect and persistence were significantly better than that of the control pesticide 40% monocrotophos solvent, which was an ideal substitute for the control of resistant cotton aphid