六、果实轮纹病发生规律及防治在我国苹果轮纹病主防治二区内,果实轮纹病的发生也是非常严重的。果实轮纹病的发病是从5～6月份枝干轮纹病菌孢子散发出来后,就大量地侵染果实,病菌首先潜伏在果实表面皮孔,但是不能直接侵入到果肉内部危害,到7月下旬病菌从皮孔潜伏状态活化,向果 Sixth, the occurrence and prevention and control of fruit ring disease In China two main areas of apple ring disease prevention and control, the occurrence of fruit ring disease is also very serious. The incidence of fruit ring disease is from May to June after the spores of rotten germ spores were distributed to a large number of fruit infiltration, the first lurking in the fruit skin surface lenticel, but can not directly invade the internal damage to the pulp to July Late bacteria activated from the lenticular latent state, to the fruit