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[目的]明确10%溴氰虫酰胺油悬浮剂对稻纵卷叶螟的防治效果及使用剂量。[方法]采用田间茎叶喷雾法检测防治效果,以邓肯氏新复极差法检验差异显著性。[结果]10%溴氰虫酰胺油悬浮剂20~40 g a.i./hm2剂量处理,药后15 d,保叶效果85.80%~90.60%,防虫效果90.55%~94.24%,与20%氯虫苯甲酰胺悬浮剂30 g a.i./hm2的防效相当,比40%毒死蜱乳油600 g a.i./hm2的防效好。[结论]10%溴氰虫酰胺油悬浮剂以20~40 g a.i./hm2剂量处理能有效控制稻纵卷叶螟的为害,可以在生产上推广应用。
[Objective] The research aimed to determine the control effect and dosage of 10% Bromidemide amide oil suspending agent on rice leaf roller. [Method] The control effect of spraying stems and leaves in field was tested, and the difference significance was tested by Duncan ’s new repolarization method. [Result] The results showed that the preservative effect was 85.80% ~ 90.60% and the pest control effect was 90.55% ~ 94.24% at the dosage of 20-40 g ai / hm2 of 10% The control effect of 30 g ai / hm2 of formamide suspension was comparable, which was better than that of 40% chlorpyrifos 600 g ai / hm2. [Conclusion] The treatment of 10% bromothiramide oil SC with 20 ~ 40 g a.i./hm2 could effectively control the damage of rice leaf roller Cnaphalocrocis medinalis, which could be widely applied in production.