发生在草坪上的真菌病害主要影响草坪的质量和外观。为害种子、叶、鞘、茎、根等各个部位，造成烂种、苗腐、叶枯和其他部位的腐烂坏死甚至整株死亡。我国北方冷季型草坪以禾本科草坪混植为主，主要有早熟禾类、黑麦草类、羊茅草类、结缕草类和剪颖股类。据笔者个人统计，在我 The fungal diseases that occur on the lawn mainly affect the quality and appearance of the lawn. Damage seeds, leaves, sheaths, stems, roots and other parts, resulting in rotten seedlings rot, leaf blight and other parts of the decay necrosis or even whole plant death. The cold-season turf in northern China is dominated by gramineous turfgrasses, mainly including Poa pratensis, ryegrass, fescue, zoysiagrass and shearing stocks. According to my personal statistics, at me