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鉴于近年小麦条锈病在河南省发生为害新特点,为了弄清该病病菌是否能在本省越夏,为开展综合防治提供理论依据,于2004～2009年进行了本项研究工作。调查研究结果证明,小麦条锈病病菌能在本省豫北、豫西海拔1 100 m以上地区越夏。越夏后的条锈病病菌能侵染当地和豫西南地区的小麦秋苗,引起冬前发病和春季流行。自生麦苗是条锈病病菌越夏的主要寄主。
In view of the new characteristics of wheat stripe rust occurring in Henan Province in recent years, this study was conducted in 2004-2009 in order to find out whether this disease pathogen can reach the summer in this province and provide a theoretical basis for comprehensive prevention and control. Survey results show that wheat stripe rust pathogen in northern Henan Province, Henan Province, more than 1,100 meters above sea level in summer. The stripe rust pathogen after the summer could infect wheat autumn seedlings in the local and southwestern areas of Henan, causing the onset of winter and the spring epidemic. Autotrophic wheat seedlings are the main hosts of the stripe rust pathogen in summer.