玉渊潭公园樱花树根瘤病发病情况调查及不同防治技术效果评价  

Investigation on the Incidence of Cerasus Tree Root Nodule Disease and Evaluation of Dfferent Treatments on Cerasus Tree Root Nodule Disease in Yuyuantan Park

作　　者：赵晓娟 侯世星 孙玉红 张国新 高捷 ZHAO Xiao-juan;HOU Shi-xing;SUN Yu-hong(Yuyuantan Park,Beijing 100142)

机构地区：[1]北京市玉渊潭公园管理处,北京100142

出　　处：《安徽农业科学》2022年第9期138-139,142,共3页Journal of Anhui Agricultural Sciences

基　　金：北京市公园管理中心科研专项(ZX2021023)。

摘　　要：在对玉渊潭公园内樱花树根瘤病发病规律调查的基础上,评价了发病植株根瘤切除后采用根癌宁(K84)生物防治以及结合根部周围土壤改良等不同处理措施对根瘤病的防治效果。结果表明,玉渊潭公园樱花树根瘤病整体发病率较高,坡地的发病率、发病指数均略轻于平地;不同品种根瘤病的发病情况差异明显,其中,“关山”“青肤樱”和“美利坚”3个樱花品种相对易感,而“普贤象”和“白妙”2个樱花品种抗性最强;与空白对照组相比,根瘤切除后采用K84生物防治处理可以有效控制根瘤病的危害,进一步结合根部周围土壤改良可以显著促进樱花树新根生长(P<0.05),从而使患病的樱花树重新焕发活力,最终实现对根瘤病的有效控制,从而达到维护景观效果和保护生态环境的目的。Based on the investigation of the incidence of Cerasus tree root nodule disease in Yuyuantan Park, the control effects of different treatments on Cerasus tree root nodule disease were evaluated, e.g. removal of the root nodules of the diseased plants followed by application of biological control genaining(K84), combined with soil improvement around the roots. The results showed that the overall incidence of cherry nodule Cerasus tree root nodule disease was very high in Yuyuantan Park, and the incidence and incidence index of Cerasus tree root nodule disease in flat land were slightly lower than that in steep land. There was a significant difference in the incidence of root nodule disease among different varieties. Among them, “Guanshan”“Qingfuying” and “Meilijian” were relatively susceptible, while “Puxianxiang” and “Baimiao” were the most resistant. Compared with the untreated control, removal of the root nodules of the diseased plants followed by application of biological control K84 provided effectively control on Cerasus tree root nodule disease, and further combined with soil improvement around roots could significantly promote the growth of new roots of Cerasus trees(P<0.05), so that the diseased cherry trees will regain vitality, and finally realize the effective control of root nodules, so as to maintain the landscape effect and protect the ecological environment.

关 键 词：樱花 根瘤病 根瘤切除 生物防治 土壤改良 

分 类 号：S436.8[农业科学—农业昆虫与害虫防治]