湖北农业科学 ›› 2020, Vol. 59 ›› Issue (24): 101-105.doi: 10.14088/j.cnki.issn0439-8114.2020.24.022

• 植物保护 • 上一篇    下一篇

核桃枝干上一株黄色镰刀菌的鉴定及室内防治药剂筛选

王鹏程1, 方爱平2, 屈定斌3, 彭新4, 姜李5, 金太星6, 孙长城7, 杨正容8, 贾切9   

  1. 1.湖北三峡职业技术学院,湖北 宜昌 443000;
    2.远安县河口乡林业站,湖北 远安 444209;
    3.秭归县林业局,湖北 秭归 443600;
    4.秭归县郭家坝镇林业站,湖北 秭归 443621;
    5.兴山县黄粮镇林业站,湖北 兴山 443701;
    6.兴山县黄粮镇农技服务中心,湖北 兴山 443701;
    7.兴山县峡口镇农技服务中心,湖北 兴山 443701;
    8.五峰土家族自治县农业农村局,湖北 五峰 443413;
    9.长江大学园艺园林学院,湖北 荆州 434025
  • 收稿日期:2020-08-10 出版日期:2020-12-25 发布日期:2021-01-21
  • 通讯作者: 贾切(1980-),男,博士,讲师,主要从事园林园艺植物保护的教学与研究工作,(电话)15571693769(电子信箱)jiaqie020@163.com。
  • 作者简介:王鹏程(1968-),男,湖北谷城人,副教授,硕士,主要从事园林园艺的教学与研究工作,(电话)15271519816(电子信箱)wpc061227@126.com
  • 基金资助:
    宜昌市科学技术研究与开发项目(A18-212); 湖北三峡职业技术学院重点科研项目(2017KZ02)

The identification and screening of fungicides against Fusarium culmorum from stem of walnut

WANG Peng-cheng1, FANG Ai-ping2, QU Ding-bin3, PENG Xin4, JIANG Li5, JIN Tai-xing6, SUN Chang-cheng7, YANG Zheng-rong8, JIA Qie9   

  1. 1. Hubei Three Gorges Polytechnic, Yichang 443000, Hubei, China;
    2. Hekou Forestry Station of Yuan'an County, Yuan'an 444209, Hubei, China;
    3. Zigui County Forestry Bureau, Zigui 443600, Hubei, China;
    4. Guojiaba Town Forestry Station of Zigui County, Zigui 443621, Hubei, China;
    5. Huangliang Town Forestry Station of Xingshan County, Xingshan 443701,Hubei,China;
    6. Huangliang Town Agricultural Technology Service Center of Xingshan County, Xingshan 443701, Hubei, China;
    7. Xiakou Town Agricultural Technology Service Center of Xingshan County, Xingshan 443701, Hubei, China;
    8. Wufeng Tujia Autonomous County Agricultural and Rural Bureau, Wufeng 443413, Hubei, China;
    9. College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, Hubei, China
  • Received:2020-08-10 Online:2020-12-25 Published:2021-01-21

摘要: 近年来发生的核桃幼茎变黑腐烂病害严重影响该地区的产业健康发展。为确定病原,提高施药防治效果,对核桃幼茎病原生物进行分离、鉴定及室内杀菌剂筛选。结果表明,宜昌核桃枝干黑腐病主要由黄色镰刀菌(Fusarium culmorum)引起,且对不同真菌杀菌剂均有一定的敏感性。室内毒力测定结果显示,40%氟硅唑乳油对黄色镰刀链菌的毒力相对最强,EC50为0.383 7 μg/mL;其次为43%戊唑醇悬乳剂,EC50为9.192 1 μg/mL;毒力最弱的是70%甲基硫菌灵可湿性粉剂,EC50为2 010.961 μg/mL。在生产实践中可考虑用40%氟硅唑乳油和43%戊唑醇悬浮剂作为该种病害的主要防治药剂。

关键词: 核桃幼茎, 黄色镰刀菌(Fusarium culmorum), 分离鉴定, 杀菌剂筛选

Abstract: In recent years, the black rot on young walnut stems has seriously affected the sound development of the industry in this area. In order to clarify the pathogen and improve the effect of managing this disease, identification and screening of the fungicide against the pathogen from walnut young stem were carried out in laboratory. The results showed that the black rot on walnut was mainly caused by Fusarium culmorum and the pathogen was sensitive to different fungicides. Among them, the toxicity of 40% flusilazole emulsifiable concentrate was the strongest one with an EC50 of 0.383 7 μg/mL, followed by 43% tebuconazole suspension with an EC50 of 9.192 1 μg/mL, and 70% thiophanate methyl wettable powder with an EC50 of 2 010.961 μg/mL. In the practice of pathogen control, 40% flusilazole emulsifiable concentrate and 43% tebuconazole suspension should be considered as the main control agents Fusarium culmorum from walnut stem.

Key words: young stem of walnut, Fusarium culmorum, pathogen identification, fungicide screen

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