甘薯茎线虫病俗称糠心病、空心病,是国内植物检疫对象之一。除危害甘薯外,还危害豆类、马铃薯、花生等作物,但对玉米、小麦及棉花等则不危害。近几年,随着甘薯种植面积的扩大,从外省市调运种薯、薯苗大量增多。由于盲目引种、无证调运以及连年重茬等原因,导致甘薯茎线虫病在我省局部地区大面积发生, Sweet potato stem nematode disease known as heart disease, heart disease, is one of the object of phytosanitary. In addition to endangering sweet potatoes, but also endanger beans, potatoes, peanuts and other crops, but not harmful to corn, wheat and cotton. In recent years, with the expansion of sweet potato planting area, transfer of seed potato from other provinces and cities, a substantial increase in potato seedlings. Due to blind introduction, undocumented transport and successive cropping and other reasons, resulting in sweet potato stem nematode disease in a large area in our province,