桃树流胶病的发生及防治桃树流胶病是桃树及其它核果类果树常见的枝干病，多在主干和主枝上发生，果实发病较少。流胶病可使树势日趋衰弱，叶片变黄，严重的甚至枯死，果实发病主要从核附近分泌胶汁，果皮硬化或裂开、食用品质下降。长期以来，人们一直认为流胶病是一种非... The occurrence and control of peach gum disease Peach gum disease is a perennial common disease of peach tree and other stone fruit trees, occurring mostly in the trunk and main branches, the incidence of fruit less. Silicosis can make the tree increasingly weaker, yellow leaves, severe or even dead, the incidence of fruit mainly from the vicinity of the nuclear secretion of plastic juice, peel sclerosis or cracking, eating quality decline. For a long time, people always think that melascan is a kind of non ...