【摘要】 田间小区和示范试验结果表明,48%绿丰EC对稻飞虱和纵卷叶螟有良好的防治效果。小区试验药后5d和10d,60mL/667m2的48%绿丰EC对稻飞虱的防效分别为85.2%和85.7%;药后8d和15d,对稻纵卷叶螟的保叶效果分别为94.1%和82.6%,杀虫效果分别为97.3%和84.6%。示范试验药后10d,对稻飞虱的防效为78.4%,对纵卷叶螟的保叶和杀虫效果在80%以上。更多还原

【Abstract】 Dursban plus fipronil 48% EC provided excellent control efficacy of rice planthopper and leaf roller in field plot and demonstration trials. When applied at 900 mL/hm2 in field plot trials, it provided 85.2% and 85.7% control efficacy against rice planthopper at 5 and 10 d after application, respectively; while against rice leaf roller, the leaf protection efficacy was 94.1% and 82.6%, and the control efficacy was 97.3% and 84.6% at 8 and 15 d after treatment, respectively. While used the same dosage in field demonstration trials, it provided 78.4% control efficacy against rice planthopper and the leaf protection and control efficacy against rice leaf roller were both above 80% at 10 d after treatment.更多还原