本文根据苏北沿海区近年为粳稻恶苗病重发这一现况，分析其重发原因，并提出了建立无病留种田和进行种子处理等关键性的防治措施。 Based on recent researches on japonica rice seedling disease recurrence in the coastal areas of northern Jiangsu, the reasons for the recurrence were analyzed, and some key control measures such as establishment of disease-free leave-on farming and seed treatment were put forward.