非洲凤仙茎腐病发病特征及防治措施

Stem Rot Occurrence and Prevention Measures of Impatiens wallerana

为保证非洲凤仙的观赏品质及经济效益,为园艺生产者提供易操作且效果显著的综合防治措施。以北京地区露地生产的非洲凤仙园艺栽培品种为例,在总结多年生产实践经验及借鉴他人研究成果的基础上,对茎腐病的致病菌及其特点、病害症状、发病规律及其特点等方面进行了分析,从提高植物自身特性、加强栽培养护管理、加强场圃环境管理和化学防治等方面提出了综合防治措施。生产实践证明,此方案可以有效避免茎腐病对非洲凤仙观赏价值和经济效益造成的影响和损失,使非洲凤仙的成品率达95%以上,且操作简便、易推广、投入低廉,即使在露地生产的普通苗圃中也可推广使用。

In order to ensure the ornamental quality and economic benefits of Impatiens wallerana with stem rot,control measures were provided for horticultural producers.Took open field cultivation of Impatiens wallerana in Beijing as an example,based on experiences in production practice and the results of other researches,The pathogenic bacteria of stem rot and their characteristics,disease symptoms,pathogenic regularity and characteristics were analyzed and discussed.Finally,a set of effective comprehensive control measures were put forward:Improving characteristics,strengthening cultivation and maintenance management,strengthening nursery environmental management and chemical control.Years of production practice has proved that this scheme can effectively avoid the influence of stem rot disease on the ornamental value and economic benefits of Impatiens wallerana,and the yield of Impatiens wallerana could reached at more than95%.It was easy to operate,popularize and invest,even in ordinary open field cultivation.