近日,有小麦种植户反映:小麦的叶片麦尖发黄,叶鞘上先产生淡黄色小斑点,根部出现纹理交错的斑纹状黄色斑纹(通称“花秆”),严重的出现深褐色腐烂,这是小麦纹枯病的典型症状。据了解,种植户未对麦种进行任何药剂处理(即俗话所说的“白籽下地”)的发病较为严重。 Recently, some wheat growers reported that wheat leaves turn yellow on wheat leaves, pale yellow spots first appear on leaf sheaths, and zebra-like yellow markings (commonly known as “flower stalks”) are staggered at the root of the leaves. Serious dark brown decay occurs This is a typical symptom of wheat sheath blight. It is understood that the growers did not carry out any agent on the processing of wheat (that is, the saying goes “white seeds under ”) the incidence of more serious.