Subtropical Plant Science ›› 2016, Vol. 45 ›› Issue (02): 188-190.DOI: 10.3969/j.issn.1009-7791.2016.02.019

Previous Articles     Next Articles

Toxicity Test of Several Fungicides on Phytophthora melonis

YI Jiang-lan,HONG Ju-yun,MA Lin   

  1. (1.Beijing Sanlitun No.1 Middle School, Beijing 100027, China; 2.Orient燬cience?&燭echnology燙ollege, Hunan Agricultural燯niversity, Changsha 410128, Hunan China; 3.College of Plant Protection, Hunan Agricultural University, Changsha 410128, Hunan China)
  • Received:2016-03-18 Revised:2016-08-14 Online:2016-06-10 Published:2016-06-10
  • Contact: MA Lin

几种杀菌剂对黄瓜疫霉菌的毒力测定

易江兰,洪菊云,马琳   

  1. (1.北京市三里屯一中,北京 100027;2.湖南农业大学东方科技学院,湖南 长沙 410128;3.湖南农业大学植物保护学院,湖南 长沙 410128)
  • 通讯作者: 马琳
  • 作者简介:易江兰,高中生,从事植物保护研究。
  • 基金资助:

    湖南农业大学大学生创新性实验计划项目(XCX14070)

Abstract: In this study, the inhibition of 6 fungicides to Phytophthora melonis was evaluated through measuring mycelium growth rate. Pyraclostrobin metiram and Osthole could inhibit mycelium growth with EC50 3.4143 mg·L-1 and 10.4641 mg·L-1, respectively. There was certain degree of synergism after Pyraclostrobin metiram mixed Osthole and the most obvious synergism with EC50 5.8178 mg·L-1 when the ratio of Pyraclostrobin metiram mixed Osthole was 1∶2.

Key words: Phytophthora melonis, fungicides, toxicity test

摘要: 采用菌丝生长速率法检测60%嘧菌酯悬浮剂、80%代森锰锌可湿性粉剂、75%百菌清可湿性粉剂、60%唑醚·代森联水分散粒剂、2%蛇床子素微乳剂、64%杀毒矾可湿性粉剂等6种杀菌剂对黄瓜疫霉菌的室内毒力。结果表明,唑醚·代森联和蛇床子素对黄瓜疫霉菌的毒力最高,EC50值分别为3.4143 mg·L-1和10.4641 mg·L-1。将两种原药混配后,表现出增效作用,在两者混配比为1∶2时增效最明显,EC50值为5.8178 mg·L-1。

关键词: 黄瓜疫霉菌, 杀菌剂, 毒力测定

CLC Number: