萧山县河上区大多种植易于感染病毒病的白菜型油菜,近年来由于病毒病的流行,严重危害着油菜生产,产量下降,种植面积也因而有所縮小。因此,防治油菜病毒病已成为这一地区油菜生产上迫切需要解决的問題。关于防治油菜病毒病,根据以往生产和科研部門的研究,直接防除传毒蚜虫或用延迟播种避过有翅蚜 Xiaoshan County, most of the river area planted susceptible to virus disease cabbage rape, in recent years due to the prevalence of viral diseases, severely endangering the production of rapeseed, production decline, thus reducing the area planted. Therefore, the prevention and treatment of rape virus disease has become an urgent problem to be solved in the rapeseed production in this region. On the prevention and treatment of rape virus disease, according to previous research in the production and scientific research departments, the direct control of aphids infected with insects or delayed seeding to avoid winged aphids