62 %螟虱宁可湿性粉剂 ,经毒力测定 ,共毒系数为 12 6 .5 3,具有增效作用。田间试验结果 ,江苏、江西两省用 90 0g/hm2 ,对二化螟的防效均在 90 %以上 ,对稻飞虱的防效 95 %以上 ;江苏可维持 2 0d左右 ,江西则在药后 1、3、7、14d的防效达 80 .6 5 %、92 .6 5 %、94.73 %、97.12 % ,效果明显。该剂延缓了害虫抗药性的发生与发展 ,对提高经济效益 ,保持生态环境具有重要的意义 62% borer lint WP, the toxicity determination, co-toxicity coefficient of 12 6 .5 3, with synergistic effect. Field test results showed that the control effect of 90 0 g / hm2 on Chilo suppressalis was over 90% in Jiangsu and Jiangxi Provinces, and over 95% in controlling planthoppers; Jiangsu could maintain about 20 days, while in Jiangxi Province, After 1, 3, 7 and 14 days, the control effect was 80.65%, 92.65%, 94.73% and 97.12%, respectively. The effect was obvious. The agent slows the occurrence and development of pest resistance and is of great significance to improving economic benefits and maintaining the ecological environment