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自 2 0 0 0年 ,河南省郏县、襄城两地烟草病毒病再度大发生。除了品种感病和气象因素有利于病毒流行之外 ,病毒组成的变化和新株系的产生也是一个重要的原因。两地烟草病毒以马铃薯 Y病毒 (PVY)和黄瓜花叶病毒 (CMV)为主 ,而且复合侵染现象严重。要控制烟草病毒病的危害 ,减少损失 ,应该尽快选育抗病品种 ,注意烟田选择和田间卫生 ,加强栽培管理 ,做好害虫防治工作
Since 2000, the tobacco virus disease in Pixian and Xiangcheng of Henan Province has occurred again. In addition to susceptibility to weather and meteorological factors conducive to the virus epidemic, changes in the composition of the virus and the emergence of new strains is also an important reason. The two viruses are mainly potato virus Y (PVY) and cucumber mosaic virus (CMV), and the combined infection is serious. To control the harm of tobacco virus disease and reduce losses, we should breed disease-resistant varieties as soon as possible, pay attention to tobacco field selection and field health, strengthen cultivation management and do a good job in pest control