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春季是小麦各种病虫害发生蔓延的时期,是继小麦播种期防治之后的又一防治关键期,抓好春季防治工作,对小麦增产有重大意义。我省春季小麦常普遍发生的病虫害有白粉病、锈病和麦蚜、地下虫等,局部发生的病虫害有秆黑粉病、散黑穗病、纹枯病、叶枯病、病毒病、赤霉病、根腐病和粘虫、吸浆虫、麦蜘蛛、麦叶蜂、麦秆蝇等。春季小麦病虫害防治,主要是搞好农业防治和化学防治两方面。农业防治的技术重点是:加强田间栽培管理,创造有利于小麦生长发育,不利于病虫害滋生繁衍的生态条件,合理施肥浇水,特别不要过多施用氮素化肥和大水漫灌麦田。化学防治的技术最点是:适时防治和因病虫情制宜选用农药。
Spring is a period of wheat pest and disease spread, is another key period after the prevention and control of wheat sowing period, do a good job in spring prevention and control work, wheat production is of great significance. Pests and diseases such as powdery mildew, rust and wheat aphids, underground insects and other pests commonly occur in the spring wheat in our province include stalk powdery mildew, scattered smut, sheath blight, leaf blight, viral disease, Diseases, root rot and armyworms, midge, wheat spiders, wheat leaf bee, flies and other straw. Spring wheat pest and disease control, mainly to improve agricultural control and chemical control of both. The technical focus of agricultural prevention and control is to strengthen the field cultivation and management, to create conducive to wheat growth and development, is not conducive to the breeding of pests and diseases of ecological conditions, rational fertilization and watering, in particular, not excessive nitrogen fertilizer and flood irrigation wheat fields. Chemical prevention and control of the most technical point is: timely prevention and control of pests and diseases should choose pesticides.