小麦穗期病害有小麦白粉病、锈病、赤霉病、叶枯病、颖枯病等,一般年份只是白粉病、叶枯病发生重,其它病害仅个别地块零星发生,对小麦产量构不成威胁.1997、1998年连续两年气候异常造成小麦穗期病害重度流行,特别是赤霉病、叶枯病、颖枯病发生尤为严重.为探讨小麦穗期病害流行原因和综防对策,近两年来,我们进行了调查分析及试验研究. Wheat spike disease wheat powdery mildew, rust, scab, leaf blight, septum, etc., the general year is only powdery mildew, leaf blight occurred weight, other diseases only sporadic occurrence of individual plots, wheat yield structure fails Threatening 1997-2998 two consecutive years of abnormal weather caused severe pandemic in wheat spikes, especially the scab, leaf blight, and the occurrence of scleractinosis is particularly serious.In order to explore the causes of spike disease and comprehensive prevention strategies, Two years ago, we conducted a survey analysis and experimental study.