不同杀菌剂对新疆哈密瓜蔓枯病菌的毒力测定  

Determination of Toxicity in Mycospharella Melonis by New Fungicides in Xinjiang

作　　者：郝敬喆[1] 范咏梅[1] 竞中梅 张娟[2] 王惠卿[2] 张明智[2] 曾继勇[2] 吴玉华[2] 

机构地区：[1]新疆农科院植保所,乌鲁木齐830091 [2]吐鲁番地区农业技术推广中心,新疆吐鲁番838000

出　　处：《新疆农业科学》2009年第3期540-542,共3页Xinjiang Agricultural Sciences

基　　金：新疆维吾尔自治区科技成果转化专项资金项目“设施农业产业化(200654101)”

摘　　要：用生长速率法测定了4d后7种新型杀菌药剂的0．625—10g／L五个浓度梯度对哈密瓜蔓枯病病原菌（Mycospharella melonis）的抑制作用。生物药剂ZH的抑制作用最强，对新疆哈密瓜蔓枯病病菌中浓度10～1．25g/L的抑制率均为100％，测试中最低浓度0．625g／L抑制率达89．85％，其次为扑海因，两种药剂在浓度为10—2．5g/L的抑制率均在90％以上。各药剂高浓度时，哈密瓜蔓枯病病原菌对7种药剂均表现出较高的敏感性。采用spss数据处理，7种杀菌剂有效成分EC50的大小顺序依次为：甲基托布津〉秀苗〉多菌灵〉翠贝〉绿本色〉生物制剂〉扑海因。其中甲基托布津最高为2．507μg／mL，扑海因最低0．054μg/mL。This study was designed to measure the inhibition effect of 5 kinds of concentrations of 7 new fungicides with 0. 625 - 10 g/L on Mycospharella melonis by growth speed rate.The results indicated that the inhibition effect of biological fungicide ZH was the strongest, whose inhibition rate with middle concentration 10 - 1. 25 g/L on Mycospharella meionis was 100%. In the test, the inhibition rate with the lowest concentration 0. 625 g/ L reached 89.85% and followed by Puhaiyin. The inhibition rate of both fungicides reached over 90% when their concentration was 10 - 25 g/L. Mycospharella melonis pathogen were in high concentration. Based on the spss data, the proper order of the effective element ECs0 of the 7 kinds of fungicides were as follows： Thipanale Methyl 〉 Xiumiso 〉 Carben dazim 〉 Kresoxim methyl 〉 Fenarimol 〉 ZH 〉 Rovra, among which Thiphanate Methyl 2.507 μg/ mL was the highest one, the lowest was Rovral.

关 键 词：哈密瓜蔓枯病 杀菌剂 毒力测定 

分 类 号：S436.429[农业科学—农业昆虫与害虫防治]