This standard specifies the method for detection and identification of Ceratocystis fagacearum(Bretz) Hunt,including the detection of Quercus L.and other logs,wood products,wood packages and nursery stocks as hosts of Ceratocystis fagacearum(Bretz) Hunt. This standard is applicable to detection and identification of Quercus L.and other hosts of Ceratocystis fagacearum(Bretz) Hunt.