根据浙江省南部黑条矮缩病主要发生地区对黑条矮缩病越冬寄主发病情况、当前田间灰飞虱虫口密度调查,结合灰飞虱带毒率和晚稻黑条矮缩病中长期预测模型的预测结果综合分析:预计今年晚稻(单季晚稻和连作晚稻)黑条矮缩病将在台州、温州和衢州等去年重发的地区严重发生,发病率达20 According to the incidence of black-streaked dwarf disease overwintering host in the main areas of black-streaked dwarf disease in southern Zhejiang province, the population density of pollinator species in the field and the mid-long term prediction model of black-streaked dwarf disease in late rice Comprehensive forecast: It is estimated that the black-streaked dwarf diseases of late rice (single-season late rice and late-crop continuous rice) will occur seriously this year in the areas of Taizhou, Wenzhou and Quzhou that were restarted last year with the incidence of 20