5种杀菌剂防治稻曲病田间药效对比试验与评价  

Comparative Experiments and Evaluation of Field Efficacy of 5 Fungicides Against Rice False Smut

作　　者：黄蓉[1] 胡建坤[1] 李保同[2] 刘永锋[3] 潘夏艳 曹慧娟 黄瑞荣[1] HUANG Rong;HU Jiankun;LI Baotong;LIU Yongfeng;PAN Xiayan;CAO Huijuan;HUANG Ruirong(Institute of Plant Protection,Jiangxi Academy of Agricultural Sciences,Nanchang 330200,China;School of Land Resources and Environment,Jiangxi Agricultural University,Nanchang 330045,China;Institute of Plant Protection,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China)

机构地区：[1]江西省农业科学院植物保护研究所,江西南昌330200 [2]江西农业大学国土资源与环境学院,江西南昌330045 [3]江苏省农业科学院植物保护研究所,江苏南京210014

出　　处：《生物灾害科学》2022年第2期117-121,共5页Biological Disaster Science

基　　金：江西省主要学科学术和技术带头人培养计划项目(20204BCJ23015);江西省科技支撑计划项目(20111BBF60047);国家自然科学基金项目(31171802)。

摘　　要：【目的】筛选防控稻曲病的有效药剂,并对早期报道有效药剂的稳定性作出评判,为稻曲病防控合理选择药剂提供科学依据。【方法】分别选用曾报道对稻曲病防效良好的3种杀菌剂和曾报道对稻曲病防效不佳的1种杀菌剂及未在稻曲病上试验过的1种杀菌剂,进行田间防效对比试验,测定其对稻曲病的防治效果。【结果】于水稻黄熟期调查,防效以125g/L氟环唑悬浮剂和24%腈苯唑悬浮剂较好,达80%以上;50%醚菌酯水分散粒剂次之,其他药剂防效不理想。【结论】24%腈苯唑悬浮剂与125g/L氟环唑悬浮剂这两种杀菌剂对稻曲病防效稳定,当前仍适宜作为稻曲病防治的主推药剂在生产上使用,50%醚菌酯水分散粒剂可考虑作为备用药剂酌情使用。[Objective]This study was conducted to screen effective fungicides for the control of rice false smut,and evaluate the stability of effective fungicides reported earlier,providing scientific basis for rational selection of fungicides for control of false smut.[Method]Three fungicides reported to have good control effects on rice false smut,one fungicide reported to have poor control effects on false smut,and one fungicide not tested on false smut,were selected to carry out the comparative test of control effects on rice false smut in fields to determine their control effects on false smut.[Results]The investigation results at rice ripening period showed that 125g/L epoxiconazole suspension concentrate and 24%fenbuconazole suspension concentrate were the best control fungicides,with the control effect more than 80%,followed by 50%kresoxim-methyl water-dispersible granule,but other fungicides were not ideal.[Conclusion]Two fungicides,24%fenbuconazole suspension concentrate and 125g/L epoxiconazole suspension concentrate,had stable control effects on false smut,and are still suitable for use in rice production as the main agent for false smut control.50%kresoxim-methyl water-dispersible granule could be considered as a standby agent for appropriate use.

关 键 词：稻曲病 杀菌剂 药剂防治 

分 类 号：S482.2[农业科学—农药学]