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我省地域辽阔,有各种类型的生态环境,这就有利于麦类病害的发生流行。麦类病害的种类很多,但主要有:小麦条、叶锈病,麦类白粉病和赤霉病,小麦纹枯病、根腐病、叶枯病、颖枯病、散黑穗病、腥黑穗病、黄矮病、丛矮病、土传花叶病、大麦条纹病、云纹病、黄叶病、散黑穗病等20余种病害。近年来,小麦条锈病在我省经常发生流行。比如,1983年信阳地区发病面积达200.5万亩,损失小麦2500万公斤;1991年达300.0万亩,损失小麦
The vast territory of our province, there are various types of ecological environment, which is conducive to the occurrence of wheat diseases. There are many kinds of wheat diseases, but the main ones are: wheat bar, leaf rust, wheat powdery mildew and scab, wheat sheath blight, root rot, leaf blight, sclerotinia, smut, Ear disease, yellow dwarf disease, dwarf disease, soil-borne mosaic disease, barley stripe disease, moire, yellow leaf disease, scattered smut and other diseases more than 20 kinds. In recent years, wheat stripe rust is frequent in our province. For example, in 1983, the incidence in the Xinyang area reached 200.5 million mu, 25 million kilograms of wheat was lost. In 1991, 300 million mu of wheat was lost and wheat was lost