Toxicity Test of Several Fungicides on Phytophthora melonis

  • YI Jiang-lan ,
  • HONG Ju-yun ,
  • MA Lin
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  • (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 date: 2016-03-18

  Revised date: 2016-08-14

  Online published: 2016-06-10

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.

Cite this article

YI Jiang-lan , HONG Ju-yun , MA Lin . Toxicity Test of Several Fungicides on Phytophthora melonis[J]. Subtropical Plant Science, 2016 , 45(02) : 188 -190 . DOI: 10.3969/j.issn.1009-7791.2016.02.019

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