小麦穗期是多种病虫的盛发期。主要病害有小麦白粉病、叶锈病、条锈病、赤霉病。其中自粉病为常发性病害,年均发病1000万亩左右,其它病害在气候等条件适宜时也可暴发流行。虫害主要有麦蚜、一代棉铃虫、吸浆虫、一代粘虫 Wheat ear is the full bloom of a variety of pests. The main diseases are wheat powdery mildew, leaf rust, stripe rust, scab. Among them, powdery mildew is a common disease with an average annual incidence of about 10 million mu. Other diseases may be outbreaks when conditions such as climate are appropriate. Main insect pests wheat aphid, a generation of cotton bollworm, midge, a generation of armyworms