几种药剂对烟草赤星病的防治效果

Effect of Several Pesticides on Tobacco Brown Spot Disease

为探究云南烟区最有效的烟草赤星病防治药剂,提升烟叶品质及质量。采用随机区组试验设计方法,研究30%苯醚甲环唑、40%菌核净、80%代森锰锌对“云烟87”赤星病的防治效果。结果表明,施用80%代森锰锌有利于烟株生长;喷施40%菌核净及80%代森锰锌对烟草赤星病防治效果较好;X2F、C3F等级烟叶喷施40%菌核净及80%代森锰锌有利于烟叶化学成分合成,B2F等级烟叶施用80%代森锰锌有利于烟叶化学成分合成。

In order to explore the most effective tobacco brown spot prevention and control agents in Yunnan tobacco areas,improve the quality of tobacco leaves,a randomized block trial design method was used to study the effects of 30%difenoconazole,40%sclerotium,and 80%mancozeb on“Yunyan 87”brown spot disease.The results showed that the application of 80%mancozeb was beneficial to tobacco plant growth;spraying 40%sclerotium and 80%mancozeb had better control effect on tobacco brown spot;spraying 40%sclerotia for X2F and C3F grade tobacco leaves and 80%mancozeb was conducive to the synthesis of chemical components of tobacco leaves,and the application of 80%mancozeb to B2F grade tobacco leaves was conducive to the synthesis of chemical components of tobacco leaves.