Abstract:
In order to clarify the pathogenic bacteria species of
Bletilla Striata leaf blight, the pathogen of
B. Striata leaf blight was isolated, purified and identified by rDNA-ITS sequence analysis, the purified pathogen was grafted to
B. Striata plants to evaluate its pathogenicity. The results showed that a total of 6 fungi strains were isolated from the diseased samples of
B. striata, including three strains of
Fusarium, namely:
F. keratoplasticum,
F. oxysporum and
F. equiseti; a strain of
Aspergillus japonicus; a strain of
Botrytis cinerea; a strain of
Mucor fragilis. According to the pathogenicity test, it was found that the above 6 strains of fungi were all pathogenic to
B. Striata.
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