Powdery mildew is caused by Erysiphe graminis D.C. f. sp. tritici (Em.Marchal) and is one of the main diseases of cultivated wheat (Triticum aestivum L.).

• 摘要小麦白粉病是小麦生产的主要病害之一，应用抗病品种是防治该病的十分经济、有效的措施。