五种杀菌剂对蓖麻葡萄座腔菌的室内毒力测定  

Indoor Toxicity Measurement of Five Different Fungicides to Botryosphaeria dothidea against Ricinus communis

作　　者：姜晓龙[1,2] 金磊磊[2] 喻镇东[2] 陈辉辉[2] 邵荣[1] 许伟[1] 陈集双[2] 

机构地区：[1]盐城工学院化学与生物工程学院,江苏盐城224000 [2]南京工业大学生物与制药工程学院,南京210000

出　　处：《湖北农业科学》2015年第16期3942-3944,共3页Hubei Agricultural Sciences

摘　　要：通过对蓖麻(Ricinus communis)发病部位进行真菌分离、纯化、鉴定、致病性测定,确定侵染蓖麻的病原菌为葡萄座腔菌(Botryosphaeria dothidea),并采用菌丝生长速率法测定50%多菌灵WP、70%甲基托布津WP、75%百菌清WP、99%恶霉灵WP、80%代森锰锌WP 5种杀菌剂对菌丝生长的毒力。结果表明,毒力最强的杀菌剂是50%多菌灵,对病菌B.dothidea的EC50为0.173 5μg/m L,抑菌效果明显优于其他4种杀菌剂。By measuring the separation, purification and identification of the fungi from Ricinus communis,artifical inoculation showed that the pathogen for the disease was Botryosphaeria dothidea. The toxicity of 5 fungicides including 50% carbendazin WP, 70% thiophanate methyl WP,75% chlorothalonil WP,99% Hymexazol WP and 80% Mancozeb WP to fungal gummosis pathogens B. dothidea was tested by mycelia growth rate method. The results showed that the fungicides of 50% carbendazin WP was highly toxic to B. dothidea. EC50 was 0.173 5 μg/m L and the sterilization effect was better than the other four kinds of fungicides.

关 键 词：蓖麻(Ricinus communis) 葡萄座腔菌(Botryosphaeria dothidea) 杀菌剂 毒力测定 

分 类 号：S482.2[农业科学—农药学]