安徽农业科学,Journal of Anhui舢一.Sci.2009.37{19):9032—9033。9037 责任编辑熊章琴责任校对况玲玲 6种杀菌剂对烟草后期主要病害防治效果比较 董贤春1,张志强1,刘兰明1,张宏健2 (1.宜昌市烟草公司兴山营销部,湖北宜昌443700;2.兴山县农业局,湖北宜昌443700) 摘要[目的]筛选有效防治烟草赤星痛和白粉病的药剂。[方法]以烟草l(326为供试品种,通过喷雾处理比较6种常用杀茵剂对烤 烟后期白粉病、赤星病的防治效果。[结果]6种药荆对烟草白粉病和赤星病均有一定的预防和治疗作用。其中以15%三唑酮WP防治 白粉病效果最佳,50%退茵特WP对赤星病表现较好的防治效果。白粉病防治在高山烟区还可选用80%的杜邦克露WP,在低山烟区可 选用50%退茵特WP;赤星病防治在高山烟区可选用75%百茵清WP.中山烟区可选用15%三唑酮WP。在兴山烟区大田后期选用15% 三唑酮WP和50%退茵特WP可综合防治烟草赤星病和白粉病,通过轮换用药,可以提高防治效果。[结论]该研究为烟草赤星病和白 粉病的有效防治提供了科学依据。 ’ 关键词白粉病;赤星痛;防效 中图分类号s435.72 文献标识码A Comparison on 文章编号0517—6611(2009)19一09032—02 on the Control Effects of 6 Fungicides et the Main Diseases in Tobacco in Its Late Growth Stage DONG Xian-chun al(Xingshan Marketing Department of YicllaIIg Tobacco Company,Yichang,Hubei 443700) Abstract [Objective 1 The aim WaS tO screen the effective medicaments for controlling to.co powdery mildew and brown spot.[Method] With tobacco K326鹅tested vailety.the control effect of6 kinds of common fungicides on powdery mildew and brown spot at flue-cured tobac. CO later stage were powdery mildew and brown spot.Among them.15%Triadimefon WP had best control effect control effect On treatment.[Result]Six medicaments all had certain preventative and therapeutic effects to tobacco Oil powdery mildew and 50%Tuzet WP had better brown spot.80%Dupunt also could be selected to control powdery mildew in high mountain area and 50%Tuzet compared by spraying cu