防治烟草向日葵列当药剂的筛选  

Screening of Chemicals for the Control of Orobanchel cumana Wallr on Tobacco

作　　者：徐玮 孔毅 苏燕妮[2] 唐嘉成[2] 李元清 高荣 

机构地区：[1]贵州中烟工业有限责任公司,贵州贵阳550001 [2]沈阳农业大学植物保护学院,辽宁沈阳110866 [3]辽宁省烟草公司朝阳市公司,辽宁朝阳122000

出　　处：《安徽农业科学》2016年第2期194-195,268,共3页Journal of Anhui Agricultural Sciences

基　　金：贵州中烟工业有限责任公司基地项目

摘　　要：[目的]筛选出烟草向日葵列当有效的化学防控药剂并确定其最佳浓度。[方法]通过大田试验研究9种不同化学药剂的单剂和混配对烟草向日葵列当的防治效果。[结果]3.75 L/hm2二甲戊灵对烟草向日葵列当的防效为63.83%;1.50 L/hm2精异丙甲草胺和3.75 L/hm2氟乐灵的防效均为59.57%,但从前期的药害指数来看,1.50 L/hm2精异丙甲草胺和3.75 L/hm2氟乐灵的药害要小于3.75L/hm2二甲戊灵。[结论]1.50 L/hm2精异丙甲草胺和3.75 L/hm2氟乐灵2种药剂值得进一步推广。[ Objective ] To screen out effective chemicals for controlling O. cumana Wallr on tobacco and make sure its optimal dosage. [ Method] We studied the control effects of single and mixed forms of nine kinds of herbicides against O. cumana WaIlr. [ Result] The control effects of 3.75 L/hm2 Pendimethalin, i. 50 L/hm2 （S） -Metolachlor and 3.75L/hm2 Trifluralin were 63.83% , 59.57% and 59.57% , re- spectively. But seeing from the early phytotoxicity index, the phytotoxicity of 1.50 L/hm2 （S） -Metolachlor and 3.75 L/hm2 Trifluralin were smaller than that of 3.75 L/hm2 Pendimethalin. [ Conclusion] Both 1.50 L/hm2 （S） -Metolachlor and 3.75 L/hm2 Trifluralin are the suitable chemicals for controlling O. cumana Wallr.

关 键 词：烟草 向日葵列当 药剂 防效 

分 类 号：S451.229[农业科学—植物保护]