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KARNACK, Texas--Texas A&M AgriLife scientists are seeing significant areas of giant salvinia destroyed by salvinia-eating weevils at Caddo Lake on the Texas-Louisiana border as part of project to control this exotic weed invading east Texas lakes.
After releasing approximately 100,000 weevils at two research sites in the last two years, Dr. Allen Knutson, Texas A&M AgriLife Extension Service entomologist at Dallas, and Lee Eisenberg, AgriLife Extension assistant at Karnack for the Texas Water Resources Institute, recently found large mats of salvinia destroyed by the weevils at the sites, Knutson said. A thick mat of healthy plants persisted in adjacent areas Â where weevils were not released, he said. (Read More)