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通过全国油菜病毒病预测预报研究协作组1980—1985年的调查、试验表明:在我国冬油菜区起毒源作用的作物主要是萝卜、大白菜等秋季十字花科蔬菜;它们的种植面积和秋季病毒病发生量与油菜病毒病成正相关。在不同地区间,毒源面积影响病害很大;而在同一地区,则以秋季病毒病发生量对油菜发病影响突出。毒源距油菜地距离在小范围内与病害关系明显,但在大范围内很难进行估计。
According to the survey conducted by the cooperative research group of rape virus disease in 1980-1985, the results showed that: the main crops that act as a source of poison in the winter rapeseed area in China are autumn cruciferous vegetables such as radish and Chinese cabbage; their planting area and autumn The incidence of virus disease is positively related to rape virus disease. In different regions, the area of poisonous source has a great impact on the disease. In the same area, the incidence of the virus in autumn has a significant impact on the incidence of rape. The distance between the poisonous source and the rape has obvious relationship with disease in a small area, but it is difficult to estimate in a large area.