5种杀菌剂对茄子黄萎病菌的拮抗作用  

The Antagonistic Effects of Five Kinds of Fungicides on Verticillium dahliae

作　　者：唐琳[1] 赵辉[2] 秦磊 

机构地区：[1]洛阳师范学院生命科学系,河南洛阳471000 [2]河南省农业科学院植保所,河南郑州450000 [3]农业部华北南部农作物有害生物综合治理重点实验室河南省农作物病虫害防治重点实验室,河南郑州450000

出　　处：《贵州农业科学》2012年第12期118-120,共3页Guizhou Agricultural Sciences

基　　金：河南省基础研究计划项目"解淀粉芽孢杆菌B10-26生防机制及发酵条件研究"(122300410051);洛阳师范学院青年科研基金项目"河南省豫西地区农田土壤镰孢菌种群多样性分析"(2011-QNJJ-004)

摘　　要：为生产上合理使用化学药剂防治茄子黄萎病,采用牛津杯法,测定了多菌灵、三唑酮、甲基托布津、恶霉灵和氟硅唑等5种农药对茄子黄萎病菌的抑菌效果。结果表明:恶霉灵的抑菌效果最好,EC50和EC90分别为1.570 0g/mL和3.520 2g/mL;防治茄子黄萎病的最低抑菌浓度为1.25mg/mL,最低杀菌浓度为1.43mg/mL。建议,生产上使用浓度为1.43g/L(700倍液)的恶霉灵防治茄子黄萎病。The authors used the oxford cup method to survey the antibacterial activity of several fungicides on V. dahliae, which were Carbendazim, Triadimefon, Thiophanate-methyl, Hymexazol and Flusilazole, so as to rationally control V. dahliae using chemical agents. The results showed that Hymexazol had the best inhibitory effect, and its EC50 and EC90 were 1. 570 0 g/mL and 3. 520 2 g/mL respectively. The practical minimal inhibitory concentration （MIC） of drug dilution concentration on V. dahliae was 1. 25 mg/mL. Besides, the actual minimal bactericidal concentration （MBC） of drug dilution concentration was 1. 43 mg/mL. When preventing the verticillium wilt with hymexazol, the recommended concentration of the drug dilute was 1.43 g / L （700 times）. Key words： Verticillium dahliae; ECso; ECgo ; MIC; MBC

关 键 词：茄子黄萎病 EC50 EC90 最低抑菌浓度 最低杀菌浓度 

分 类 号：S436.411[农业科学—农业昆虫与害虫防治]