近几年黑龙江垦区甘蓝型双低春油菜菌核病陆续发生,在一些农场有逐年加重趋势,一般发病率10—15%,重病田30%以上。1991—1992年我们在北安进行了万余亩油菜田多效唑叶面喷施生产示范,不仅有壮苗增产效果,也能明显地减轻菌核病的发生。1991年在二龙山农场,1485亩油菜田喷洒100ppm 多效唑液25升/亩,3—5叶期机械喷雾,收获前调查防病效果55.6—65.6%,赵光农场1100亩高产油菜田同样 In recent years, Heilongjiang reclamation area cabbage double low spring rape sclerotinia disease occurred in succession, in some farms have increased year by year, the general incidence of 10-15%, more than 30% of serious disease. From 1991 to 1992, we conducted more than 10,000 mu moxibustion foliar spray production demonstration in Bei’an, which not only increased seedling yield but also significantly reduced the occurrence of sclerotinia. In 1991 in Erlongshan farms, 1485 acres of rape fields sprayed with 100ppm paclobutrazol 25 liters / mu, 3-5 leaf stage mechanical spray, check the pre-harvest disease prevention 55.6-65.6%, 1100 acres of high yield rape fields Zhao farm the same