2Barrett S.Sexual reproduction in Eichhornia crassipes (water hyacinth)[J].Journal of Applied Eccology,1980,17:101-112.
3Center D,Alfred F,Joseph K.Biological control of aquatic and wetland weeds in the Southeastern United States[R].Proc Ⅶ Int Symp Biol Contr Weeds,1989:239-262.
5Julien M.Biological control of water hyacinth[R].Canberra:Australian Centre for International Agricultural Research Monograph.1999:2-3.
6Sinkala T,Mwala M.Control of aquatic weeds through polutant reduction an d weed utilization:a weed management approach in the lower Kafue River of Zambia[J].Physics and Chemistry of the Earth,2002,27:983-991.
7Harley K.The role of biological control in the management of water hyacinth,Eichhornia crassipes[J].Biocontrol News and Information,1990,11(1):11 -22.
