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葡萄果实采后,加强田间管理,对来年的丰产稳产具有重要的作用。 一、控制病害的发生和发展 1.抓紧防治霜霉病。8～9月份是葡萄霜霉病的发病高峰期,此病发展极快,在适宜条件下,几天内病斑便可布满叶片,新梢不能充分成熟,花芽分化数量减少且质量差。严重者还会造成自上而下枯死,给来年产量造成严重影响。防治霜霉病的药剂有多种,如瑞毒霉、瑞毒铝铜、乙磷铝、甲霜灵锰锌、甲霜铜等,以甲霜灵锰锌、甲霜铜防治效果较好。 2.继续防治白粉病。白粉病又叫腐烂病,是葡萄上的一种毁灭病害,对果实的危害极大,严重时会造成50％以上的产量损失,用DT、DTM高效杀菌剂,防治此病效果较好。
After the harvest of grape fruits, strengthen field management, the next year’s high yield and stability have an important role. First, control the occurrence and development of disease 1. Pay close attention to prevent downy mildew. 8 ~ September is the peak incidence of grape downy mildew, the disease develops extremely fast, under appropriate conditions, the lesion can be covered within a few days leaves, shoots can not fully mature, reduce the number of flower buds and poor quality. In severe cases, it can also cause death from above, causing serious impact on the coming year’s output. There are many kinds of medicaments for preventing and controlling downy mildew, such as Rumex, Rauf, Zinc, Metallopram, Metalaxyl, Metalaxyl, Metalaxyl, Metalaxyl and Copper. 2. continue to control powdery mildew. Powdery mildew, also known as rotten disease, is a kind of devastating disease on grapes, which causes great harm to the fruit. In severe cases, it will cause over 50% yield loss. It is better to use DT and DTM high-efficiency bactericide to prevent and cure this disease.