Cotton Verticillium wilt is a kind of soilborne vascular wilt disease caused byVerticillium dahliae, which seriously affects cotton yield and fiber varieties. CottonVerticillium wilt in China is caused by Verticillium dahliae Kleb, has outbroken repeatedlyand given rise to huge economic loss. V. dahliae microsclerotia are major primary infectionsource of cotton Verticillium wilt, and could survive in soil for many years without hosts.Lacking of effective germplasm resources resistant to disease, soil fumiga...