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油菜在整个生长过程受到蚜虫、潜叶蝇害虫的为害(蚜虫还能传染病毒引起油菜花叶病);在生长后期易发生菌核病和霜霉病。其中又以菌核病的发病率高造成的损失更大。据高安县农业局植保站调查,该县油菜菌核病常年发病率一般为10—15％,重的达30—40％。1981年4月底,该站在东方红公社聂圩四队,对旱地移栽的秀江一号油菜进行取样调查,发病率为18.5％受害植株造成两方面的危害,其中,落荚损失:茎秆受害的落荚率为31.53％,枝梗受害的
Rape throughout the growth process by aphids, leafminer pest damage (aphids can also infect the virus caused by rape mosaic disease); susceptible sclerotinia and downy mildew in the late growth stage. Among them, the incidence of sclerotinia caused by the higher loss. According to Gao’an County Bureau of Agriculture Plant Protection Station survey, the county perennial incidence of sclerotinia usually 10-15%, up to 30-40%. The end of April 1981, the station in the East Red Commune Niexu four teams on the dry land transplanted Xiujiang No. 1 rape sampling survey, the incidence rate of 18.5% of the victims of damage caused by the plant in which the loss of falling pods: stems Stalks affected by falling pod rate was 31.53%, branch stalk victims