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期 刊 ：植物保护学报 1998年

关键词：小麦；黄矮病；病毒株系；麦蚜种群；春小麦；

Keywords:barley yellow dwarf virus, virus strains, aphid population,

摘 要 ：１９９２￣１９９５年的研究结果表明，河北省春麦区麦长管蚜是传播小麦黄矮病毒的优势种群，占张家口坝上、坝下及承德麦蚜发生总量的９４．７５％￣１００％。有翅蚜迁入麦田的时期和数量是影响春麦黄矮病发生程度的重要因素。张家口坝上小麦黄矮病毒株系以麦二叉蚜、麦长管蚜株系（ＧＡＶ）占绝对优势，张家口坝下及承德地区的株系种类较为复杂，除以ＧＡＶ株系为主外，存在禾缢管蚜、麦长管蚜、麦二叉蚜株系（ＰＡＧＶ）及麦二叉

Abstract:A survey on the aphid vectors of BYDV was carried out in the spring wheat area of Hebei Province during 1992 - 1995. The results showed that Macrosiphum ave-nae Fab. was the main aphid vector population, of which the incidence was from 94. 75% to 100%. Th

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