Pathogen Identification of the Anthracnose of Ligusticum chuanxiong Hort. and Inhibitory Effect of Four Fungicides on the Pathogen  

川芎炭疽病病原鉴定及4种杀菌剂对病原的抑制作用(英文)

作　　者：赵振玲[1] 刘丹婷[2] 杨维泽[1] 张金渝[1] 金航[1] 杨美权[1] 

机构地区：[1]云南省农业科学院药用植物研究所,云南昆明650231 [2]安徽农业大学植保学院,安徽合肥230036

出　　处：《Plant Diseases and Pests》2010年第1期18-21,共4页植物病虫害研究（英文版）

基　　金：Supported by Basic Projects in Yunnan Academy of Agricultural Sciences"Medicinal Plant Resources Nursery Building"~~

摘　　要：[Objective] The research aimed to isolate and identify the pathogen of anthracnose of Ligusticum chuanxiong Hort,and make the antifungal test on four kinds of fungicides for selecting the optimum fungicides.[Method] The pathogenic fungi was separated according to Koch＇s rule and the shape characteristics were identified. The antifungal test of fungicides was made by using plate mycelium growth inhibition method.[Result] The pathogenic fungi was separated from leaves of Ligusticum chuanxiong Hort. and morphological characters were consistent with that of Colletotrichum gloeosporioides. In addition to chloroisobromine cyanuric acid,the other three fungicides could inhibit the mycelium growth. The growth inhibition rates of 1 000 times Metalaxyl＋mancozeb,zineb,Thiophanate-methyl for the mycelium were 26.8%,22.1%,59.8% respectively after 7 days.[Conclusion] The anthracnose was caused by Colletotrichum gloeosporioides. Ligusticum chuanxiong Hort. was a new record host plant of Colletotrichum gloeosporioides and the best inhibiting fungicide was Thiophanate methyl.[Objective] The research aimed to isolate and identify the pathogen of anthracnose of Ligusticum chuanxiong Hort,and make the antifungal test on four kinds of fungicides for selecting the optimum fungicides.[Method] The pathogenic fungi was separated according to Koch＇s rule and the shape characteristics were identified. The antifungal test of fungicides was made by using plate mycelium growth inhibition method.[Result] The pathogenic fungi was separated from leaves of Ligusticum chuanxiong Hort. and morphological characters were consistent with that of Colletotrichum gloeosporioides. In addition to chloroisobromine cyanuric acid,the other three fungicides could inhibit the mycelium growth. The growth inhibition rates of 1 000 times Metalaxyl＋mancozeb,zineb,Thiophanate-methyl for the mycelium were 26.8%,22.1%,59.8% respectively after 7 days.[Conclusion] The anthracnose was caused by Colletotrichum gloeosporioides. Ligusticum chuanxiong Hort. was a new record host plant of Colletotrichum gloeosporioides and the best inhibiting fungicide was Thiophanate methyl.

关 键 词：Ligusticum chuanxiong Hort. ANTHRACNOSE Colletotrichum gloeosporioides FUNGICIDE INHIBITION 

分 类 号：S435.672[农业科学—农业昆虫与害虫防治]