苹果自谢花后的幼果至采收前的成熟果病菌皆可侵入。苹果炭疽病菌具有潜伏浸染特性;幼果期侵染的病菌,有的致病效快,在果面出现麻点型病状,以后随果实生长和气温升高,多数能扩展成果腐型;有的长期潜伏,需经过10-11个月以上的潜育期之后才发病。 病害潜育期,随果龄及温度等条件 Apple since the flowers after the young fruit to harvest mature fruit germs can be invasive. Apple anthrax has latent dip characteristics; young fruit infected with pathogens, and some pathogenic fast, appear in the fruit surface pitting-type symptoms, and later with the fruit growth and temperature, the majority can expand the results of rot type; some Long-term latency, need to go through 10-11 months after the incubation period onset. Disease incubation period, with age and temperature and other conditions