菌核病是油菜的一大病害。重发年份株发病率达70～80%,减产4～5成;轻发年份株发病率达20～30%,减产1～2成,并明显影响出油率。我们公社1974年试用上海红卫农药厂研制的“纹枯利”,防治油菜菌核病取得了较好的防治效果。参加“纹枯利”防治油菜菌核病试验的有三个大队十四个生产队,近300亩面积,其中示范面积270亩,试验面积30亩,有不同药剂、浓度、用药次数、打老叶和不打老叶 Sclerotinia is a major disease of rape. The recurrence of the annual incidence of strains of 70 to 80%, 4 to 5 percent reduction in production; light years of strain incidence of 20 to 30%, reducing 1 to 2 percent, and significantly affect the oil yield. Our commune in 1974 trial Shanghai Hongwei Pesticide Factory developed “grain dry Lee,” prevention and treatment of rape Sclerotinia achieved better control effect. To participate in the “grain blight” control rape sclerotisis test has three production brigades 14 teams, nearly 300 acres of area, of which 270 mu demonstration area, the test area of ​​30 acres, with different agents, concentrations, the number of drugs, playing the old leaves And do not hit the old leaves