湖北农业科学 ›› 2021, Vol. 60 ›› Issue (12): 73-75.doi: 10.14088/j.cnki.issn0439-8114.2021.12.014

• 植物保护 • 上一篇    下一篇

七种杀菌剂对荆州市小麦赤霉病的室内毒力及田间防效

常悦a, 朱祥a, 孟振国a, 董倩a, 王锦鹏a, 李俊凯a,b   

  1. 长江大学,a.农学院; b.农药研究所,湖北 荆州 434025
  • 收稿日期:2021-01-27 出版日期:2021-06-25 发布日期:2021-07-19
  • 通讯作者: 李俊凯(1969-),男,教授,博士,主要从事新农药的研究与开发,(电子信箱)junkaili@sina.com。
  • 作者简介:常 悦(1995-),男,山西朔州人,在读硕士研究生,研究方向为新农药的研究与开发,(电话)15629867590(电子信箱)2712076820@qq.com。
  • 基金资助:
    国家自然科学基金项目(31672069)

Labaratory toxicity and field control efficiency of 7 fungicides to wheat scab in Jingzhou city

CHANG Yuea, ZHU Xianga, MENG Zhen-guoa, DONG Qiana, WANG Jin-penga, LI Jun-kaia,b   

  1. a.College of Agriculture; b.Institute of Pesticides,Yangtze University,Jingzhou 434025,Hubei,China
  • Received:2021-01-27 Online:2021-06-25 Published:2021-07-19

摘要: 为了筛选出对荆州市小麦赤霉病较好防效的杀菌剂,采用田间喷雾法与菌丝生长速率法,测定了7种药剂对小麦赤霉病及其病原菌的田间防效与室内毒力。结果表明,室内毒力测定咪鲜胺、戊唑醇、氰烯菌酯、吡唑醚菌酯4种原药抑菌效果较好,抑制中浓度(EC50)分别为0.028、0.114、0.427、1.554 mg/L。供试的7种药剂对小麦赤霉病都有较好的田间防效,咪鲜胺水乳剂防效最高,为88.60%,其次为咪鲜胺乳油和吡唑醚菌酯悬浮剂,防效分别为83.53%和82.13%。供试药剂中25%咪鲜胺水乳剂的防效显著高于其他药剂,可以在田间优选使用。

关键词: 杀菌剂, 小麦赤霉病, 室内毒力, 田间防效

Abstract: In order to screen out the fungicide with better control effect on wheat scab in Jingzhou city, the field control and indoor antibacterial activities of 7 pesticides against wheat scab were determined with the field spray method and the mycelial growth rate method. The results showed that the four original drugs of prochloraz, tebuconazole, phenamacril and pyraclostrobin in the laboratory toxicity test have good antibacterial effects for the wheat scab, and the inhibitory concentrations (EC50) were 0.028, 0.114, 0.427, 1.554 mg/L, respectively. And the field results showed that the seven pesticides had good control effects against wheat scab. Prochloraz EW had the highest control effect of 88.60%, followed by prochloraz EC 83.53% and pyraclostrobin SC 82.13%, respectively. The control effects of the 25% prochloraz EW in the test agent was significantly higher than other pesticides, and it can be preferably used in the field.

Key words: fungicide, wheat scab, labaratory toxicity, field control effects

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