油菜龙头病的防治

• 机 构: 上海市农科院土保所农作物病害研究组,
• 出 处: 上海农业科技
• 发表日期: 1978年Z1期
• 关键词: 早熟品种 晚熟品种 上海郊区 个别生产 金泽 青浦 抽苔 三年 上海市农科院 秧苗期

油菜龙头病是上海郊区油菜的常发病害,历年均有不同程度的发生。如一九七三年上海郊区发病普遍严重,早熟品种“铁杆青”、“沪油三号”发病率高的达100％,形成大流行年。一九七六年郊区各县发病不一致,有轻、有重。如金山、奉贤县晚熟品种偏多,发病较轻,一般发病率1～3％。奉贤早熟品种7055发病多的在18％左右。而青浦、嘉定县有的公社发病很重,青浦金泽公社金联、金姚大队个别生产队发病率在90％以上,嘉

Rape leading disease is a common disease in suburban Shanghai rape, all over the years have varying degrees of occurrence. For example, in 1973, the outbreak in Shanghai suburbs was generally serious. The precocious varieties “Hardcore” and “Huyou No. 3” reached a high incidence of 100%, forming a pandemic year. Suburban counties in 1976 the incidence is inconsistent, with light and heavy. Such as Jinshan, Fengxian late partial varieties of more, less severe, the general incidence of 1 to 3%. Fengxian early maturing varieties 7055 incidence of more than 18%. The Qingpu, Jiading County, some communes have a heavy incidence of Jinpu commune Qingpu Jinlian, Jinyao brigade individual production team incidence of more than 90%, Jia