警惕小麦上危险性病害的发生何文兰宋玉立（河南省农科院植保所郑州４５０００２）小麦上有多种病害，常见的如白粉病、锈病、纹枯病、叶枯病、赤霉病等已被普遍重视。近年来我省一些地区发生小麦全蚀病、腥黑穗病、胞囊线虫病等，并有上升趋势，局部地区已造成严重为害。... Wary of the occurrence of dangerous diseases in wheat He Wenlan Song Yuli (Plant Protection Institute of Henan Academy of Agricultural Sciences, Zhengzhou 450002) There are many diseases on wheat. Common diseases such as powdery mildew, rust, sheath blight, leaf blight and scab have been Generally valued. In recent years, total eclipse of wheat, tangled smut and cyst nematode disease have occurred in some areas of our province, and there is an upward trend. Some areas have caused serious damage. ...