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油菜病毒病是我县油菜的主要病害之一,每年程度不同都有发生,给油菜生产造成严重威胁。今年又是一个大发生年。全县三万亩油菜普遍发病,严重的田块高达30%。为了尽快摸清发病规律,提出有效的防治措施,我们对该病进行了初步调查,现将结果整理如下:(一)发病特点。油菜病毒病的发生和侵染涉及因素多,表现比较明显的特点
Rape virus disease is one of the major diseases of rapeseed in our county. Different degrees occur each year, posing a serious threat to rapeseed production. This year is another big year. The county thirty thousand acres of rape common disease, severe plots up to 30%. In order to find out the onset of the law as soon as possible, put forward effective prevention and treatment measures, we conducted a preliminary investigation of the disease, the results are summarized as follows: (A) the incidence characteristics. Incidence and infection of rape virus disease involves many factors, the performance of more obvious characteristics