8种杀菌剂对玉米穗腐病的毒力测定及田间药效试验

打开文本图片集

中图分类号S482.2文献标识码A文章编号 0517-6611（2025）12-0108-05

doi：10.3969/j.issn.0517-6611.2025.12.025

开放科学（资源服务）标识码（OSID）：

TheVirulence Tests and Field Efficacy Trials of Eight Fungicides Against Maize Ear Rot

WANGLiang-fang，YANG Xiao-long，WUZh-taoetal（GansuAgriculturalEngineeringTechnologyResearchIntitute/Wuwei City MaizePestGrenPreventonandControlTechnologyovationCenter/GansuProvinceMaizePestsGreenPreventionandControlEnineing Research Center，Lanzhou，Gansu ）

AbstractObectiveToselectefectivefungicidestoontrolaizerotMetodelabratoryviruleneof8fungicidesagaitaie earrotwasmeasuedusigteyelialgothateethod，ndeldcacyaclostroberductedungdesitoi tory toxicity.[Result]The result of Virulence tests indicated that 10% metconazole 5C，25% pyraclostrobin SC，30% propithiostazole SC and （204号 25% phenamacril SC had strong inhibitory effects on maize ear rot，and their EC50 were 0.001 5，0.016 3，0.031 4 and 0.0451mg/L ，respectively.Fieldtrialsesultsshowedthathe4fungicidesadgoodcontrolfectonmazearotandtheontroleectwereothoretan 60% ， among which 30% prothiomethazole SC had the best control effect on maize ear rot，and the plant control effect was 69% .[Conclusion] The 4 fungicides can be used alternately in production.

Key wordsMaize ear rot;Fungicides; Virulence test;Field efficacy

玉米是世界三大作物之一，同时也是重要的粮食作物、饲料作物和工业原料。（剩余8182字）