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玉米幼苗枯萎病的症状在种子的根和顶处呈褐色，扩展到整个根系，减少根毛，没有次级根，深棕色的根系，浸在茎的底部，腐烂，棕色裂缝的叶子护套。叶子变成黄色，叶子的边缘干燥，焦灼，心叶卷曲且易于折叠，并逐渐从底部到顶部逐渐干燥。 If there is no secondary root, the seedlings will die. If there is a small number of secondary roots, weak seedlings will form. The tips of the leaves turn yellow and develop towards the middle of the leaves. In severe cases, the heart leaves are green withered and wilted.

The occurrence of this disease is closely related to climate, variety, soil, management and crop rotation. Long-term \”low temperature and high humidity\” are a sign of good effect. Some corn varieties have weak growth during the seedling stage and are susceptible to diseases.这些地形具有低洼地形，贫穷的土壤，粘土，盐水土地和玉米除草剂的地块，如果播种得太深，它们很容易患疾病。 The accumulation of disease sources in the previous crops aggravated the condition.土壤水积聚会导致芽泛滥，影响幼苗的正常生长和发育，而根部的植物会导致幼苗枯萎病。在小麦和玉米的旋转中，小麦根疾病是严重的，导致病原体的积累并加剧了幼苗疫病的发生。 The main pathogen that causes seedlings is Fusarium beaded.