板栗疫病在广西区内的危险性分析  

Risk analysis of chestnut blight in Guangxi

作　　者：李贵玉 韦继光[2] 罗基同 赵庭坤 廖旺姣[2] 潘秀湖 

机构地区：[1]广西壮族自治区森林病虫害防治站,广西南宁530022 [2]广西大学农学院,广西南宁530005 [3]广西高峰林场,广西南宁530001

出　　处：《广西农业生物科学》2006年第4期310-314,共5页Journal of Guangxi Agricultural and Biological Science

基　　金：南宁市科学研究与技术开发计划项目(20060138B)

摘　　要：通过定性因素和定量指标体系相结合的方法对板栗疫病在广西的危险性进行评估,评估结果表明,此病害的危险性综合评价值为1.7128,属于中度危险性的林业有害生物。板栗疫病菌寄主范围广,此病在广西的分布已经相当广泛,但板栗疫病的病原菌不必补充为广西壮族自治区林业检疫性有害生物。通过采取栽培无病苗木、减少枝条和主干的伤口、削除枝条和主干的病斑和进行伤口的消毒、砍除重病枝等措施,可以有效地防治病害的发生。Risk appraisement of chestnut blight in Guangxi was made based on qualitative factor and quantity index system. The result showed that the comprehensive appraisement value of risk was 1. 7128 and it meant that this disease belonged to a middle dangerous level in forestry. Chestnut blight fungus, Cryphonectria parasitica, hosted in a wide range of plants and chestnut blight was widely scattered in Guangxi. It is proposed that C. parasitica is not necessarily to be decided as a quarantine organisms in Guangxi forestry. The measures of cultivation of disease-free seedling, reduction of wound of stem and twig, wound sterilization after peeling diseased patch of stem and twig, cutting down badly diseased twigs are effective control method.

关 键 词：板栗疫病 板栗疫病菌 广西 危险性评估 

分 类 号：S436.64[农业科学—农业昆虫与害虫防治]