果树根癌病及其防治果树根癌病是为害苹果、梨、桃、杏等多种果树的根部病害，在我县发生普遍，为害轻者生长发育不良，树势衰弱，果实个小，产量低，品质差；重者叶片黄化，早期落叶及落果，未落果实也不能正常发育。１根癌病的识别根癌病的发病部位多见于嫁接口处、根颈... Fruit tree root cancer and its prevention and treatment of fruit tree root cancer is the root of apple, pear, peach, apricot and other fruit trees in the root disease occurs in our county, the development of light poor growth and development, weakness, fruit is small, yield Low, poor quality; heavy yellow leaves, early deciduous and fruit drop, nor fruit can not be normal development. Identification of a cancer root cancer incidence of the site more common in the graft interface, root neck ...