近年来 ,冀中南各地冬小麦病虫灾害呈现暴发趋势。病害有丛矮病、腥黑穗病、纹枯病、全蚀病、白粉病、锈病、土传花叶病等 ,虫害有小麦蚜虫、吸浆虫等。已严重威胁着冀中南部地区小麦产量。对此 ,如不及时采取措施 ,势必会给农业生产带来更大损失。据调查 :小麦病虫害暴发的原? In recent years, the outbreak of winter wheat pest and disease has shown a trend in various areas around central and southern Hebei. Diseases are bushy dwarf disease, tardiness, sheath blight, eclipse disease, powdery mildew, rust, soil Mosaic disease, pests are wheat aphids, Midge and so on. Has seriously threatened the output of wheat in southern central Hebei. In this regard, if we do not take timely measures, it will inevitably bring greater losses to agricultural production. According to the survey: wheat pests outbreak of the original?