玉米茎腐病在世界备玉米产区均普遍发生,危害损失较重。近几年河北玉米产区此病发生日趋严重,据在张家口、唐山、保定、石家庄等地调查,一般发病率8～30％,最高达60％,病株早衰,籽粒不饱满,造成严重减产。针对上述情况,河北省农科院植保所受省科委委托,于1986～1991年开展了对该病的病原菌调 Corn stalk rot in the world prepared corn production areas are generally occurring, endanger the loss heavier. In recent years, Hebei maize producing area is more and more serious. According to the survey in Zhangjiakou, Tangshan, Baoding, Shijiazhuang and other places, the average incidence is 8-30% and up to 60%. The diseased plants are premature and the grain is not full, . In response to the above situation, Hebei Academy of Agricultural Sciences Plant Protection commissioned by the Provincial Science and Technology Commission, carried out in 1986 ~ 1991 pathogen transfer of the disease