欢迎访问中国生物防治学报,今天是

中国生物防治学报 ›› 2017, Vol. 33 ›› Issue (5): 681-685.DOI: 10.16409/j.cnki.2095-039x.2017.05.015

• 研究论文 • 上一篇    下一篇

9种生物制剂对甘薯长喙壳菌的抑制作用及防治效果

张德胜, 王永江, 王爽, 白瑞英, 张振臣   

  1. 河南省农业科学院植物保护研究所/农业部华北南部作物有害生物综合治理重点实验室/河南省生物农药工程研究中心, 郑州 450002
  • 收稿日期:2017-04-11 出版日期:2017-10-08 发布日期:2017-10-11
  • 通讯作者: 张振臣
  • 作者简介:张德胜,副研究员,E-mail:zhangdesheng404@163.com;张振臣,研究员,E-mail:zhangzhenchen@126.com。
  • 基金资助:
    国家甘薯产业技术体系建设项目(CARS-11-02A);河南省科技攻关(172102110217);河南省重点实验室项目(132300413220)

Inhibitory Activities and Control Efficacy of Nine Biopesticides to Ceratocystis fimbriata Ellis et Halsted

ZHANG Desheng, WANG Yongjiang, WANG Shuang, BAI Ruiying, ZHANG Zhenchen   

  1. IPM Key Laboratory in Southern Part of North China, Ministry of Agriculture/Biological Pesticides Engineering Research Center of Henan Province/Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
  • Received:2017-04-11 Online:2017-10-08 Published:2017-10-11

摘要: 为筛选防治甘薯黑斑病的生物农药,测定了9种生物制剂对甘薯长喙壳菌孢子萌发和菌丝生长的抑制作用,并进行了防治效果验证。结果表明,四霉素对分生孢子萌发以及菌丝生长均表现出最强的抑制作用,EC50分别为0.10和0.15 mg/L;丁子香酚次之,EC50分别为0.24和0.93 mg/L。四霉素对薯苗黑斑病具有较好的防治效果,当接种甘薯长喙壳菌分生孢子浓度为5×104孢子/mL时,四霉素有效用量6与9 mg/L处理的防治效果分别为66.67%和78.57%;当接种浓度为5×105孢子/mL时,四霉素有效用量6与9 mg/L处理的防治效果分别为77.44%和90.23%。本研究为生物农药应用于甘薯黑斑病的防治提供了依据。

关键词: 甘薯长喙壳, 生物农药, 孢子萌发, 菌丝生长, 防治效果

Abstract: To screen biopesticides for controlling black rot of sweet potato, the inhibitory activities of 9 biopesticides against mycelial growth and conidial germination of Ceratocystis fimbriata Ellis et Halsted were measured and the control efficacies were tested. The results showed that tetramycin had the highest inhibitory activities to conidial germination and mycelial growth, with the EC50 values of 0.10 and 0.15 mg/L, respectively. Eugenol showed the second highest inhibitory activities, with the EC50 values of 0.24 and 0.93 mg/L, respectively. When inoculated C. fimbriata with 5×104 spores/mL, control efficacy of tetramycin at 6 and 9 mg/L were 66.67% and 78.57%, respectively; At 5×105 spores/mL, the efficacy were 77.44% and 90.23%, respectively. This study provided an experimental basis for rational use of biopesticides for controlling black rot of sweet potato.

Key words: Ceratocystis fimbriata Ellis et Halsted, biopesticides, conidial germination, mycelial growth, control efficacy

中图分类号: