苹果树腐烂病是一种弱寄生真菌侵染性病害,病菌潜伏在病疤和树皮死组织内,从树皮的破伤处侵染为害,引起树皮腐烂,导致植株死亡,是我省苹果产区的主要病害。近年来,病势日渐上升,为害严重。据雁 Apple tree rot disease is a weak parasitic fungal infestation disease, bacteria lurk in the dead scar and bark tissue damage from the bark damage at the bark, causing bark decay, leading to plant death, is our province Apple producing areas of the main diseases. In recent years, the disease is on the rise, serious damage. According to geese