[关键词]
[摘要]
为掌握甘肃省玉米病虫害的发生种类和流行动态，于2015年8月与9月在全省9个市(州)30个县(区)对玉米病虫害发生危害情况进行了系统调查。结果表明，玉米大斑病、普通锈病和玉米螟在甘肃省各生态区普遍发生，且危害严重，为甘肃地区的主要玉米病虫害；玉米灰斑病在甘肃首次发现，分布在陇南山区，有蔓延和扩展到周边地区的趋势；茎基腐病、穗腐病和瘤黑粉病在甘肃各地区均有发生。
[Key word]
[Abstract]
In order tomaster the occurrence species and epidemic dynamics of corn diseases and pests in Gansu province. A systematic investigation is carried out on the occurrence and damage of corn diseases and pests in 30 counties (districts) of 9 cities in the whole province in August and September， 2015. The result shows that northern corn leaf blight， common corn rust and corn borer are widely distributed and seriously occurred， which are the main diseases andpests in Gansu area. Gray leaf spot is discovered for the first time in Longnan， Gansu province， and there will be a trend of spreading to the surrounding area. Stalk rot， ear rot and common smutoccurred in various regions of Gansu province.
[中图分类号]
S435.131
[基金项目]
国家科技支撑计划项目“主要旱粮作物重大病虫害防控技术研究与集成示范(2012BAD19B04-11)”；农业部公益性行业(农业)科研专项“作物根腐病综合治理技术(201503112)”；甘肃省农业科学院中青年基金项目“玉米穗腐病病原种类及抗病品种筛选(2014GAAS25)”
