小麦线虫病在世界各国麦产区都有发生。在我国发生也较广。解放以来,由于大力开展防治与检疫工作,大大控制了小麦线虫病的为害,但个别防治不好的地区,减产仍很严重。小麦线虫病主要为害小麦,也能为害黑麦;但对大麦及燕麦的侵染力很低。 Wheat nematode disease occurs in all the wheat producing areas in the world. Occurred in our country is also wider. Since the liberation, due to vigorously carry out prevention and quarantine work, greatly control the damage caused by wheat nematode, but individual control is not good areas, production is still very serious. Wheat nematode is primarily wheat-harming but also rye-harming, but infecting barley and oats is low.