鸡爪病主要发生在套袋‘黄冠’梨上,在每年7、8月果实近成熟期或成熟期,遇到适宜的气候条件即发生症状。河北省辛集市自2001年大面积引进‘黄冠’梨以来,每年都不同程度地发生鸡爪病,由于没有一套系统有效的防治措施,导致果农遭受巨大的经济损失,尤其2017年鸡爪病发生严重的梨园,发生率在50%以上。为此,我们多年深入多个果园进行调查,基本掌握了‘黄冠’梨鸡爪病的发生规律,并对其发生原因做了详细的研究分析,从施肥、修剪、生草、套袋、疏果等方面提出了初步防治建议,为‘黄冠’梨鸡爪病的防控提供参考。 Chicken claw disease occurs mainly in bagged ’Huang Guan’ pear, in July and August each year the fruit near maturity or maturity, encountered the appropriate climatic conditions that the symptoms occur. Since 2001, due to the introduction of ’Huang Guan’ pears over a large area in Xinji City, Hebei Province, there has been a different degree of occurrence of chicken claw disease each year. Without a systematic and effective prevention and control measures, the farmers have suffered huge economic losses, especially in 2017 Pear serious disease, the incidence of more than 50%. For this reason, we have conducted in-depth surveys of many orchards for many years and basically grasped the law of the occurrence of ’Huang Guan’ pear pear chicken claw disease and made a detailed study and analysis on the causes of the occurrence of the chicken pear diseases. From the aspects of fertilization, pruning, Thinning fruit and other aspects of the proposed prevention and control of the initial ’Huang Guan’ pear pear disease prevention and control provide a reference.