桂林地区位于长江流域冬油菜区与华南冬油菜区分界处,油菜病毒病的病原病毒主要是芜菁花叶病毒(TuMV)和黄瓜花叶病毒(CMV),但以后者所占比例为大;病毒主要通过蚜虫迁飞而传播;传毒蚜虫主要是萝卜蚜和桃蚜;病害流行受油菜品种抗病性,毒源作物发病量,栽培环境和气候等因素影响,这些与长江流域冬油菜病区具有相似性。该地处于长 The Guilin area is located at the boundary of the winter rapeseed area and the southern China rapeseed area in the Yangtze River valley. The main pathogens of the rape virus disease virus are TuMV and cucumber mosaic virus (CMV), but the latter accounted for a large proportion. The virus was mainly transmitted by aphids migrating; aphids were mainly radish aphids and Myzus persicae; disease prevalence by the rapeseed disease resistance, the incidence of toxic crops, planting environment and climate and other factors, these and the Yangtze River Basin winter rape disease Areas have similarities. The place is long