油菜菌核病历来是我区油菜生产的主要障碍,常年株发率在10—30％,而当地农户没有防治习惯。1989年我区大流行,平均发率高达43.8％,病指26.7％,每亩约损失菜籽25公斤,全区53672亩油菜损失1342吨,我们于1990年开展药剂防治此病的试验、示范和应用。 试验在本区师桥镇沙浦翁家村农户翁新根承包田进行,油菜品种为92-58系。在油 Sclerotinia sclerotiorum has always been a major obstacle to the rapeseed production in our region. The annual incidence of rapeseed is between 10% and 30%, while the local farmers have no control habit. In 1989, the epidemic rate in our district was as high as 43.8% with a disease index of 26.7%, a loss of about 25 kg of rapeseed per acre, and a loss of 1,342 tons of 53,672 acres of rapeseed. In 1990, we conducted experiments on the prevention and treatment of the disease, And application. The experiment was carried out in Weng Xingen, a farmer in Wengjia village, Shapu Town, Shiqiao Town, where the rape varieties were 92-58 lines. In the oil