13种药剂对剑麻斑马纹病病原菌的室内毒力测定  

The Indoor Toxicity Determination of 13 Fungicides Against Phytophthora nicotianae Isolates from Sisal

作　　者：刘巧莲[1] 郑金龙[1] 张世清[1] 高建明[1] 陈河龙[1] 江程记[1,2] 易克贤[1,3] 

机构地区：[1]中国热带农业科学院热带生物技术研究所农业部热带作物生物技术重点开放实验室,海南海口571101 [2]海南大学农学院,海南海口571101 [3]中国热带农业科学院环境与植物保护研究所,海南儋州571737

出　　处：《热带作物学报》2010年第11期2010-2014,共5页Chinese Journal of Tropical Crops

基　　金：国家科技支撑计划项目(No.2007BAD48B06);国家麻类现代农业产业技术体系建设专项(NYCYTX-19);中央级公益性科研院所基本科研业务专项资金(ITBBZD0827);948项目(2010-Z6);海南省自然科学基金项目(80510)资助

摘　　要：为筛选出适合大田防治剑麻斑马纹病的高效低廉的药剂,采用菌丝生长速率法对13种药剂的抑菌效果进行室内筛选。综合分析结果表明:55%敌克松、70%甲基托布津和68%精甲霜.锰锌的EC50和EC95最小,抑菌效果最好;10%苯醚甲环唑和66%霜霉威的EC50和EC95最大。通过对药剂抑菌效果和使用成本的分析,建议生产上使用55%敌克松、70%甲基托布津、68%精甲霜.锰锌、72%霜脲.锰锌、50%烯酰吗啉、50%锰锌.氟吗啉和64%克菌特防治剑麻斑马纹病。To screen suitable fungicides with high efficiency and low cost to control zebra leaf spot disease of sisal caused by Phytophthora Nicotianae,the anti activity of 13 fungicides were tested in the laboratory by mycelium growth rate method.The results showed that the best ones of bacteriostatic effect with the lowest EC50 and EC95 were fenaminosulf 55%,thiophanate-methyl 70% and metalaxyi·mancozeb 68%.However difenoconazole 10% and propamocarb 66% were the highest with EC50 and EC95 value.By analysis of inhibiting effect and cost of these fungicides,It is suggested that fenaminosulf 55%,thiophanate-methyl 70% and metalaxyi·mancozeb 68%,cymoxanil mancozeb 72%,dimethomorph 50%,flumorph·mancozeb 50% and 64% oxadixyl could be used for controlling Zebra disease effectively.

关 键 词：剑麻斑马纹病 烟草疫霉菌 杀菌剂 毒力测定 

分 类 号：S435.63[农业科学—农业昆虫与害虫防治]