小麦穗期对产量影响最大的病虫害有白粉病、锈病、蚜虫和第一代粘虫。我站从1989年开始对这些病虫的兼治方法进行了研究,找出了兼治这些病虫害的最佳时期和简便的防治方法。小麦在开花灌浆期遭受病虫危害会造成很大减产。这个时期 The most affected plant diseases and insect pests of wheat heading were powdery mildew, rust, aphids and the first generation of armyworms. From 1989, I started to study the methods of controlling both pests and diseases, and found out the best time and simple methods of prevention and control of these diseases and pests. Wheat is susceptible to pests and diseases during the flowering and filling stage and can result in a significant yield loss. this period