The results of greenhous inoculation indicate that 18 grass species dis-tributed over 6 genera except genus Triticum have been shown to be hosts of Blumeria graminis f.

• 温室接种试验证明,小麦白粉病能成功地侵染小麦属以外的6属18种禾草,其中6属17种为国内首次报道的该菌寄主。