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Position: Home > Articles > Pathogen identification of the anthracnose of Ligusticum chuanxiong Hort. and inhibitory effect of four fungicides on the pathogen. Plant Diseases and Pests 2010,1 (1)

Pathogen identification of the anthracnose of Ligusticum chuanxiong Hort. and inhibitory effect of four fungicides on the pathogen.

作  者:
Zhao ZhenLing;Liu DanTing;Yang WeiZe;Jinyu Zhang;Jin Haiyang;Yang MeiQua
单  位:
Anhui Agricultural University,Institute of Plant Protection,Hefei 230036,China;Anhui Agricultural University,Institute of Plant Protection,Hefei 230036,Chin
关键词:
fungicides;anthracnose;ligusticum chuanxiong hort.;colletotrichum gloeosporioides;test;pathogenic fung
摘  要:
[Objective] The research aimed to isolate and identify the pathogen of anthracnose of Ligusticum chuanxiong Hort,and make the antifungal test on four kinds of fungicides for selecting the optimum fungicides.[Method] The pathogenic fungi was separated according to Koch's rule and the shape characteristics were identified. The antifungal test of fungicides was made by using plate mycelium growth inhibition method.[Result] The pathogenic fungi was separated from leaves of Ligusticum chuanxiong Hort. and morphological characters were consistent with that of Colletotrichum gloeosporioides. In addition to chloroisobromine cyanuric acid,the other three fungicides could inhibit the mycelium growth. The growth inhibition rates of 1 000 times Metalaxyl+mancozeb,zineb,Thiophanate-methyl for the mycelium were 26.8%,22.1%,59.8% respectively after 7 days.[Conclusion] The anthracnose was caused by Colletotrichum gloeosporioides. Ligusticum chuanxiong Hort. was a new record host plant of Colletotrichum gloeosporioides and the best inhibiting fungicide was Thiophanate methyl.

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