随着保护地蔬菜生产面积的不断增加,再加上连作重茬等人为因素的影响,根结线虫病已成为保护地蔬菜生产的一大障碍。1危害症状根结线虫主要侵染蔬菜的根系,根部形成瘤状物,以侧根和根须较多,初为白色,表面光滑,后期变褐色,粗糙。剖开根结,可见乳白色线虫。植株受害后,地上部生长缓慢,影响 With the continuous increase of vegetable production area in protected areas and the influence of continuous cropping and other human factors, root-knot nematode disease has become a major obstacle to the production of vegetable in protected areas. 1 Harmful symptoms Root-knot nematode mainly infects the root system of vegetables, the root of the formation of tumor, to the lateral roots and more root, white at the beginning, the surface smooth, late brown, rough. Cut open root knot, visible milky nematodes. After the plant was damaged, the shoots grew slowly and affected