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- Title
党参根腐病病原菌鉴定及其室内毒力测定.
- Authors
除雪倪; 春辉; 李惠霞; 李換字; 李文; 架垣; 胡芳弟
- Abstract
In order to identify the pathogenic fungi causing the root rot of Codonopsis pilosula in Weiyuan County of Gansu Province and screen the best fungicides to control the disease, the pathogen causing the root rot of Codonopsis pilosula was isolated and purified by tissue isolation and single spore isolation. The pathogen was identified by pathogenicity determination, colony morphological characteristics, and clustering analysis of coding transcription extension factor region ( TEF-la) . The toxicity was determined by growth rate method. The results of pathogen identification showed that Fusarium solani and Fusarium acuminatum were the pathogens causing root rot of Codonopsis pilosula in Weiyuan County of Gansu Province. The res ults of virulence test showed that all the six fungicides had inhibitory effect on them. Among them, 25% myclobutanil EC and 50% carbendazim WP had strong control effect ( EC50 < 0. 05 g· L - 1), which could be used as the main fungicides to control the root rot of Codonopsis pilosula.
- Publication
Acta Agriculturae Zhejiangensis, 2021, Vol 33, Issue 1, p96
- ISSN
1004-1524
- Publication type
Article
- DOI
10.3969/j.issn.1004-1524.2021.01.12