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杨梅树枝叶凋萎症是近年来浙江省杨梅生产和产业发展的重大威胁。作者基于杨梅树枝叶凋萎症的发生特点包括多组织器官受害、树势衰弱易于发生、品种间抗病性差异等,结合已报道的杨梅根腐病、拟盘多毛孢病菌感染、过量施用多效唑或重复施用复合肥等导致杨梅枝叶凋萎、枯死原因进行了分析。通过多年的生产实践调查,提出杨梅树枝叶凋萎发生的主要原因是农户长期、单一、连续施用含缩二脲成分的复合肥或尿素等肥料,导致杨梅树缩二脲中毒,引发树势衰弱直至死亡。据此,提出杨梅树枝叶凋萎症的综合防治对策。
Myrica rubra leafy branches in Zhejiang Province in recent years, the production and development of bayberry a major threat. Based on the occurrence characteristics of the arborvitae branch and leaf withered disease, it includes the damage of multiple tissue organs, the weakness of tree vigor, the difference of disease resistance among cultivars, etc. Combined with reported root blight of Myrica rubra, Or repeated application of compound fertilizer lead to withering and withering of the branches and leaves of Myrica rubra. Through many years of production practice survey, the main reason for the occurrence of arborvitae wilting is the long-term, single and continuous application of compound fertilizers containing biuret or urea and other fertilizers, leading to the poisoning of bayberry tree biuret and the decline of tree vigor Until death. Based on this, put forward a comprehensive prevention and control measures of the arborvitae branch withered disease.