0.4%氯虫苯甲酰胺颗粒剂对稻纵卷叶螟的田间防治效果

Field Trial Control Effect of 0.4% Chlorantraniliprole GR Against Cnaphalocrocis medinalis

[目的]筛选控制小麦赤霉病发生流行与为害的有效药剂。[方法]研究了不同施用剂量（30、36、42g／hm^2）0．4％氯虫苯甲酰胺颗粒剂对水稻稻纵卷叶螟的防治效果。[结果]2010～2011年田间药效试验表明，0．4％氯虫苯甲酰胺颗粒剂36g／hm^2对水稻稻纵卷叶螟的末次防效达88．00％以上，与200g／L氯虫苯甲酰胺悬浮剂的防效相当，持效期达30d以上。[结论]36g／hm^20．4％氯虫苯甲酰胺颗粒剂是防治水稻稻纵卷叶螟较为理想的药剂，对水稻生长安全。

[ Objective ] The aim was to screen the effective pesticide to control the occurrence, prevalence and damage of Cnaphaloerocis medinalis. [ Method] The control effect of 0.4% ehlorantraniliprole GR at different application rates of 30、36、42 g/hm2 on Cnaplalocrocis medinalis was studied. [ Result] Filed test form 2010 to 2011 showed that the control effect of 0.4% chlorantraniliprole GR at 36 g/hm2 on Cnaphalocrocis medi- nal/s reached above 88.00% ,and it equivalent to that of chaoranteaniliprole at 200 g/L,and the persistent period was more than 30 days. [ Con- clusion] 0.4% chlorantraniliprole GR at 36 g/hm^2 was the ideal reagent to control Crtaphalocrocis medinalis,and it was safe to rice.