论文部分内容阅读
苹果轮纹病是生产上危害极其严重的一种病害,一般年份造成烂果20%~30%,严重年份达50%以上。 众所周知,苹果轮纹病有枝干轮纹病和果实轮纹病之分。枝干轮纹病不但是果实轮纹病的重要侵染源,而且直接影响树势,造成树体衰弱。枝干轮纹病的常规防治主要是在休眠期进行,采用刮树皮、涂药或喷药防治的方法。经过调查研究发现,在苹果2~4年生小枝上的轮纹病斑才是果实轮纹
Apple ring disease is a serious endangerment of the production of a disease, the general year of rotten fruit caused by 20% to 30%, a serious year of more than 50%. As we all know, there is branching wheel rot in apple and rotten branch of fruit. Rift pattern is not only an important source of fruit rot disease, but also directly affects the tree vigor, causing the tree to weaken. Routine rot rot disease prevention and treatment is mainly carried out during the dormant period, the use of scraping the bark, coating or spraying methods. After investigation and study found that 2 to 4 years in Apple branchlets on the rotund spot is the fruit wheel pattern