在不同湿度环境下对香蕉苗离体叶及活体叶进行人工接种测试，结果表明高湿度是香蕉苗纹枯病发病的关键影响因素。相对湿度大于９５％时利于病害的发生发展；低于９５％时发病变轻；低于９０％时，病害的发生发展受到明显抑制。 Artificial inoculation test of detached leaves and living leaves of banana shoots under different humidity conditions showed that high humidity was the key factor affecting the incidence of banana leaf blight. Relative humidity greater than 95% is conducive to the occurrence of disease development; less than 95% of the lessened; less than 90%, the occurrence of disease was significantly inhibited.