近年来,塑料大棚和日光温室黄瓜、番茄、茄子、芹菜等根结线虫病为害日益严重,一般可造成蔬菜减产10%,重病田减产30%～50%,严重影响了蔬菜生产。发病症状根结线虫病主要为害蔬菜根部,从幼苗到成株均可受害。受害蔬菜植株的侧根和须根上长有大小不等的瘤状根结。根结初期多为白 In recent years, plastic greenhouses and solar greenhouse cucumber, tomato, eggplant, celery and other root-knot nematodes disease is increasingly serious, generally can cause 10% reduction of vegetables, severe disease reduction of 30% to 50%, seriously affecting the vegetable production. Morbidity root knot nematode disease is mainly root vegetables, from seedlings to adult can suffer. Vegetable plants suffered from lateral roots and fibrous roots grow on the size of the tumor-like root knot. Early rooting mostly white