茎线虫病是红薯生产上的主要病害,对产量和品质影响很大,一般减产20%～30%,严重时可造成绝收。过去用呋喃丹、甲基异柳磷、神农丹等剧毒高残留农药进行防治,污染农田,薯块中农药残留量较高,人畜食之有害。近年来我们采取农业、物理防治为主,辅以低毒低残留的绿色农药进行防治, Stem nematode disease is the main disease of sweet potato production, a great impact on yield and quality, the general reduction of 20% to 30%, can cause serious failure. In the past with carbofuran, methyl isofenphos, Shennong Dan and other highly toxic and highly toxic residual pesticides for prevention and treatment of contaminated farmland, potato residues higher pesticide residues, harmful to human and animal feed. In recent years, we take the agricultural and physical prevention and control, supplemented by low toxicity and low residual green pesticides for prevention and treatment,