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１９９２～１９９３年利用系统分离和接种的实验方法研究了小麦雪霉叶枯病菌在病残体和土壤中的越夏情况。病田土壤表面和２０ｃｍ耕层内的小麦残秆在弃置５～７个月后都可分离出病菌，用残秆接种能引起小麦幼苗发病，用ＵＧＡ选择性培养基平板涂布法，由麦收后５个月的病田０～２０ｃｍ耕层土壤中直接分离出病原茵，其密度为每克土壤１２００～３２０６个菌落形成单位。用病田土壤接种亦能引起小麦幼苗发病。以上试验结果表明，小麦雪霉叶枯病菌接种体可在小麦病残秆和病田土壤中越夏并保持其致病性。
From 1992 to 1993, systematic investigation of the isolation and inoculation was carried out to study the over-summer condition of wheat leaf blight fungi in diseased and soil. Pathogenic bacteria can be isolated after 5 to 7 months of abandonment on the soil surface of the field and 20 cm of residual wheat straw in the tillage layer. Inoculation of residual straw can cause the disease of wheat seedlings. UGA selective medium plate coating method, The pathogens were directly isolated from 0-20 cm topsoil in the first 5 months of the disease and their density was 1200-3206 colony forming units per gram of soil. Vaccination with disease soil can also cause disease in wheat seedlings. The above test results show that inoculation of wheat snowy mildew leaf blight in wheat disease and disease soil more summer and maintain its pathogenicity.