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病毒病病毒病能通过种薯传播,是马铃薯品种退化的主要原因。病毒为害主要有两种:一是皱宿花叶,由马铃薯X病毒和Y病毒混合浸染所造成。二是卷叶,由马铃薯卷叶病毒引起,病株下部小叶向上卷曲,病叶又厚又脆,变黄,植株矮化。马铃薯X病毒通过汁液擦伤传播,Y病毒通过蚜虫和汁液擦伤均可传播,卷叶病毒通过蚜虫传播。温度高时,病毒病发生较重。防治方法:选用抗病品种及进行脱毒处理。选用无病毒种薯,田间
Virus disease Virus disease can spread through seed potatoes, which is the main reason for the degeneration of potato varieties. There are mainly two kinds of virus damage: First, crimpled mosaic, caused by the hybridization of potato virus X and Y virus caused. The second is the leaf curl, caused by the potato leafroll virus, curly leaflets curl lower, diseased leaves thick and brittle, yellow, dwarf plants. Potato virus X is transmitted by bruising, and virus Y is spread by abrasions through aphids and juices, which are transmitted by aphids. When the temperature is high, the virus disease occurs heavier. Prevention and treatment methods: Selection of resistant varieties and detoxification treatment. Use virus-free seed, field