Center for Invasive Species Eradication About Caddo Lake Salvinia Eradication Links Giant Salvinia information: USDA National Agricultural Library Interagency Giant Salvinia Control Team AQUAPLANT: A Pond Management Diagnostics Tool Invasives Watch Texas Invasives TPWD Exotic and Invasive Species TPWD Nuisance Aquatic Vegetation Aquatic Center for Invasive Plants Lake Bistineau Louisiana