贵阳地区葡萄炭疽病病原菌鉴定及室内杀菌剂筛选  

Pathogen Identification of Grape Anthracnose in Guiyang Area and Fungicides Screening in Laboratory

作　　者：汪家胜[1] 姜于兰[1] 王德凤[1] 杨亚曦[1] 陈帝炉 

机构地区：[1]贵州大学农学院,贵州贵阳550025

出　　处：《山地农业生物学报》2014年第6期59-61,82,共4页Journal of Mountain Agriculture and Biology

基　　金：贵阳市科技局科技计划项目"葡萄主要真菌病害快速检测体系的构建及防治研究"(2012207)

摘　　要：对贵阳开阳县马坝葡萄园内葡萄炭疽病进行病原菌鉴定,葡萄炭疽病病原菌为半知菌亚门炭疽菌属胶孢炭疽菌(Colletotrichum gloeosporioides)。为筛选出高效、低毒、低残留药剂供生产上交替使用,采用生长速率法测定了6种杀菌剂对葡萄炭疽病病菌的室内毒力。结果表明:6种药剂对菌丝生长的抑制效果不同,32%多菌灵WP和25%戊唑醇WP的抑菌作用最强,其EC50值分别为0.025 4μg/m L、0.231 0μg/m L;80%代森锰锌WG的抑菌作用最差,EC50值为231.621 8μg/m L。32%多菌灵WP和25%戊唑醇WP可进一步进行大田试验,具有推广应用的价值。Pathogen of grape anthracnose was isolated from vineyards at Maba in Kaiyang county,Guiyang.The pathogenic fungus was identified as Colletotrichum gloeosporioides,Deuteromycotina. Toxicity of 6 fungicides to grape anthracnose was assessed in the laboratory by growth rate method to screen efficient,low-toxic and low-residue fungicides. The results showed that fungicides had different inhibition effect on mycelium growth of grape anthracnose. EC50 of 32% of carbendazim WP,25% of tebuconazole WP and 80% of mancozeb WG were 0. 0254 μg / m L,0. 2310 μg / m L and 231. 6218 μg / m L,respectively. The results suggested that 32% of carbendazim WP and 25% of tebuconazole WP have effective fungistasis effect,and might be applied in grape production after further field test.

关 键 词：葡萄炭疽病 病原菌鉴定 杀菌剂 毒力测定 

分 类 号：S663.1[农业科学—果树学] S482.2[农业科学—园艺学]