河南农业科学 ›› 2020, Vol. 49 ›› Issue (10): 85-91.DOI: 10.15933/j.cnki.1004-3268.2020.10.012

• 植物保护 • 上一篇    下一篇

25%山苍子油水乳剂的研发及其对马铃薯晚疫病菌的防治效果

刘甜甜1,2,张星1,熊兴耀3,刘韬4,李晓刚1,周倩1   

  1. 1.湖南农业大学 植物保护学院/植物病虫害生物学与防控湖南省重点实验室/植物疾病控制与利用湖南省高校重点实验室,湖南 长沙 410128; 2.邵阳市农业科学研究院,湖南 邵阳 422000;3.中国农业科学院 蔬菜花卉研究所,北京 100081; 4.沅江市农业农村局,湖南 沅江 413100)
  • 收稿日期:2020-04-18 出版日期:2020-10-15 发布日期:2020-10-15
  • 通讯作者: 周倩(1977-),女,湖南衡阳人,教授,博士,主要从事植物病理学研究。E-mail:zhouqian2617@hunau.edu.cn 李晓刚同为通信作者
  • 作者简介:刘甜甜(1991-),女,湖南娄底人,在读博士研究生,研究方向:植物病理学。E-mail:872254877@qq.com张星为同等贡献作者
  • 基金资助:
    国家重点研发计划项目(2018YFD0200800)

Development of 25% Litsea cubeba Essential Oil EW and Its Control Effect on Phytophthora infestans

LIU Tiantian1,2,ZHANG Xing1,XIONG Xingyao3,LIU Tao4,LI Xiaogang1,ZHOU Qian1   

  1. (1.Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests/Hunan University Key Laboratory for Control and Utilization of Plant Diseases/College of Plant Protection,Hunan Agricultural University,Changsha 410128,China; 2.Shaoyang Academy of Agricultural Sciences,Shaoyang 422000,China;3.Institute of Vegetable and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China;4.Bureau of Agriculture and Rural of Yuanjiang,Yuanjiang 413100,China)
  • Received:2020-04-18 Published:2020-10-15 Online:2020-10-15

摘要: 为开发利用山苍子油,实现马铃薯晚疫病的绿色防控,利用纯植物提取物山苍子油配制成25%山苍子油水乳剂,分别在室内平板纯培养和田间接种条件下,对马铃薯晚疫病菌(Phytophthora infestans)进行了室内抑菌试验及田间防效测定。结果表明,25%山苍子油水乳剂的1 500、1 800倍稀释液对马铃薯晚疫病菌菌丝生长的抑制率分别达到98.2%、94.6%,该药剂的田间防效达75.00%。可见,25%山苍子油水乳剂能够通过抑制菌丝生长的方式,阻止晚疫病菌对马铃薯植株的为害,实现对马铃薯晚疫病的绿色防控,为马铃薯晚疫病的防治提供了新的思路。

关键词: 山苍子油, 马铃薯晚疫病菌, 水乳剂, 植物源农药, 防治效果

Abstract: In order to utilize Litsea cubeba essential oil to achieve green control of potato late blight,25%emulsion in water(EW) prepared by pure plant extract Litsea cubeba essential oil was used to test the inhibitory effect on Phytophthora infestans in laboratory and field,respectively.The results showed that the 1 500 and 1 800 times dilutions of 25% Litsea cubeba essential oil EW had 98.2% and 94.6% inhibition rate on the mycelial growth of P.infestans,and the field control effect of this agentia reached 75.00%.Therefore,the 25% Litsea cubeba essential oil EW can prevent the damage of P.infestans by inhibiting the growth of mycelia,and achieve green control of potato late blight,which provides a new way to control potato late blight.

Key words: Litsea cubeba essential oil, Phytophthora infestans, Emulsion in water(EW), Botanical pesticides, Control effect

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