为了筛选防治烟草赤星病的最佳药剂,选取了7种常见药剂在烟草生长后期进行田间防治试验,结果表明:7种药剂对烟草赤星病均有一定的防治效果,其中40%菌核净可湿性粉剂的相对防效较好,3次施药的防效均在70%以上,平均防效为75.81%,药效稳定,且对烟株无药害现象,可在烟叶生产中推广使用。 In order to screen the best medicament to prevent and control tobacco brown spot disease, seven common medicaments were selected to carry out the field control experiment in the late tobacco growth stage. The results showed that all the seven medicaments had certain control effects on the brown spot star tobacco disease, of which 40% The relative control effect of wettable powder is better. The antifunctions of three times spraying are more than 70%, the average control effect is 75.81%. The efficacy is stable and there is no phytotoxicity on the tobacco. It can be widely used in tobacco production.