一、核桃干腐病的防治此病在核桃幼龄期少见,成树结果后,逐渐有所发现,特别是高额丰产后,如果管理不当,营养失调,发病就较严重。据七一年不完全调查统计,因此病死亡和主枝枯死的约有二千余株。七二年、七三年通过连续在下营公社西大峪大队观察试验,已初步摸 First, the prevention and treatment of dry walnut disease The disease is rare in the juvenile walnut, tree results, and gradually discovered, especially after high yield, if not properly managed, malnutrition, the incidence is more serious. According to incomplete surveys and statistics in 1981, about two thousand strains of dead and main branches died. Seven or two years, seven or three years through a continuous camp under the West Dayu group observation test has been tentative touch