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根据香草兰白绢病的症状,病原菌的形态、培养性状和寄主范围,将该菌鉴定为齐整小菌核菌(Sclerotiumrolfsii sacc)。菌核净药效试验结果表明,在室内,有效浓度等于或大于100μg/mL可抑制病菌生长;苗期病害防治,有效浓度为500μg/mL,防治效果达89.7%。
The strain was identified as Sclerotium rolfsii sacc on the basis of the symptoms of vanilla blue sclerotium, morphology of pathogenic bacteria, culture traits and host range. The results showed that in the laboratory, the effective concentration of 100μg / mL could inhibit the growth of bacteria. The effective concentration of 500μg / mL for seedling disease prevention and control was 89.7%.