皖中平原属于长江中下游平原的一部份,是中国冬油菜区油菜病毒病常发重病区之一。据1981—1985年在芜湖调查,5年大田油菜平均发病率为16.7％其中有2年在20％以上,严重田块发病率高达60％以上。据作者与中国农科院油科研究所取样鉴定,本地区油菜病毒病的病原病毒中芜菁花叶病毒(TuMV)占92％。据5年试验和调查,本地区病害流行主要与下述因素有关。 The Wanzhong Plain is part of the plains in the middle and lower reaches of the Yangtze River and is one of the most frequently endemic areas for rape virus disease in the winter rapeseed area of ​​China. According to a survey conducted in Wuhu City from 1981 to 1985, the average incidence of field rape in the past five years was 16.7%, of which, there were over 20% in two years and over 60% in severe fields. According to the author and the Institute of Oil Research, Chinese Academy of Agricultural Sciences sampling identification, the region of rape virus disease in the virus turnip mosaic virus (TuMV) accounted for 92%. According to 5 years of tests and surveys, the prevalence of diseases in the region is mainly related to the following factors.