1984年9月初,我们对1450亩谷地进行调查,谷子的白发病、黑穗病、锈病都有上升。黑穗病原一直控制在2％左右,去年由于种子处理工作有所放松,轮作倒茬有一定困难,发病率有所上升。锈病在赤峰地区是一种偶见的零星发生病害,1984年却普遍发生,发病率占整个调查面积的80％以上,地块病株率 In early September 1984, we conducted a survey of 1450 mu of valleys. White mildew, smut and rust of millet increased. The smut has been controlled at around 2%. Last year, due to the relaxation of the seed treatment work, there was some difficulty in crop rotation and the incidence rate increased. Rust disease in Chifeng area is an occasional sporadic disease occurred in 1984 but the prevalence rate of over 80% of the entire survey area, the disease rate of plots