1997～ 1999年 ,通过巴盟 5个旗 (县 )、2 0个乡、社的调查和 160 1份采集标样的室内病原菌分离、鉴定 ,结果表明 :巴盟地区小麦根病的主要病原菌为全蚀病菌 ,其分离频率最高为59 4 % ;次要病原菌有黄色镰刀菌 ,禾谷镰刀菌 ,麦根腐德氏霉 ,丝核菌 ,交链孢菌等 7种病原菌。全蚀病在 5个旗 (县 )均有不同程度的分布、发生数量约占根病的 80 %～ 90 %。 From 1997 to 1999, the investigation and identification of 160 pathogenic bacteria from 5 flag (counties), 20 townships and communities of Bamei and the collection of standard samples showed that the main pathogens of wheat root blight in Bameng area were Total eclipse bacteria, the highest frequency of separation of 59 4%; secondary pathogens Fusarium yellow, Fusarium graminearum, Destructive Mycelia, Rhizoctonia, Alternaria Alternaria and other seven kinds of pathogens. Total eclipse in five flags (counties) have varying degrees of distribution, the number of occurrence of about 80% to 90% of the root cause.