[目的]明确14%氟虫腈·嘧菌酯悬浮种衣剂对玉米二点委夜蛾的防治效果及用药量。[方法]采用药剂拌种法进行田间药效试验。[结果]14%氟虫腈·嘧菌酯FS有效成分使用剂量药种比为1∶750对玉米二点委夜蛾药后7 d的防效可达90.69%,与对照药剂50 g/L氟虫腈FS拌种处理差异显著。[结论]14%氟虫腈·嘧菌酯悬浮种衣剂能有效防治玉米二点委夜蛾,并对玉米的出苗率无不良影响。 [Objective] The research aimed to clarify the prevention and control effect and dosage of 14% fipronil azoxystrobin seed coating on corn two-spotted stage moth. [Method] The pesticide dressing method was used to conduct the field efficacy test. [Result] The effective rate of 14% Fipronil and Azoxystrobin FS was 90.69% at 7 d after the dose-ratio of 1: 750 on the 2nd instar, Fipronil FS seed dressing treatment significantly different. [Conclusion] 14% fipronil and azoxystrobin suspended seed coating could effectively prevent and treat Corncophorus selenges and had no adverse effect on the emergence rate of corn.