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Isolation, Behavioral Identification, and Pathogenicity Assessment of Entomopathogenic Fungi from a Forest Wood Borer
Published on: September 29, 2023
[Bletilla striata pseudobulb rot pathogen identification and its biological characteristic]
Le-Le Sun1, Yong-Hong Yang, Jun-Kai Liu
1Department of Plant Protection,Yunnan Agricultural University, Kunming 650201, China. le2972@163.com
Objective:
To identify the pathogen of Bletilla striata pseudobulb rot and provide foundation for formulation effective control measures.
Methods:
Surveyed the pathogenesis regularity and disease symptom of Bletilla striata pseudobulb rot,and conducted the pathogen separation, identification,vaccination and research on its biological characteristics.
Results:
The conditions for mycelium growth were as follows: the temperature ranged from 5 to 35 degrees C, and the optimum temperature ranged from 25 to 30 degrees C. The pH ranged from 3 to 10,and the optimum pH ranged from 6 to 7. The germination rate of conidia was high when the relative humidity was 100%. The lethal temperature was 55 degrees C for 10 min. Illumination had little influence on the germ growth and development.
Conclusion:
The results showed that the pathogen was Fusarium oxysporum.
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