果树学报2012，Vol.29Issue(4)：634-637,4.
大樱桃褐斑病病原茵鉴定与田间流行动态研究
Identificatioin of pathogen and epidemic dynamics of brown spot of sweet cherry
摘要
Abstract
[Objective] The pathogenicity ,field epidemic dynamics and resistance of different varieties to the disease were studied in order to effectively prevent and control its occurrence and damage. [Method] According to the morphological characteristics,monospore isolation and Koch＇s postulates, [Result] the pathogen causing brown spot was identified as Passalora circumscissa. Diseased leaves of brown spot began in late-June or early-July, then the percentage of the diseased leaves and disease index increased gradually, and the prevalence appeared during rainy weather （late-July）. The conidiophores of brown spot were firstly detected in late-July or early-August, and the peak presented from mid-August to mid-September. Occurrence of brown spot in the field depended on cultivars of sweet cherry. Bigarreau Moreau was the most susceptible to the disease,while Hongdeng and Lapins were lightly infected. The key control period in Yantai was mid-June using fungicides, such as Tebuconazole ,Difenoconazole or Carbendazim＋ Mancozeb. [Conclusion] The results provided a sound theoretical basis for preventing and controlling brown spot of sweet cherry in field.关键词
大樱桃/褐斑病/病原菌/田间流行动态Key words
Sweet cherry/Brown spot/Pathogen/Epidemic dynamics分类
农业科技引用本文复制引用
刘保友,张伟,栾炳辉,王英姿..大樱桃褐斑病病原茵鉴定与田间流行动态研究[J].果树学报,2012,29(4):634-637,4.基金项目
农业部公益性行业（农业）科研专项 （）
烟台市科技攻关计划项目 （）
