text: Chemical control Chemical control on S. molesta is difficult as it does have some resistance to herbicides. The chemical fluridon has been successfully used, but it requires prolonged contact and is not effective if it is suddenly diluted by rainwater or any other influx of water. Other chemicals, such as hexazinone and diquat and double-chelated copper are used together to kill S. molesta.
  Prevention
  Bans on the spreading, selling, relocation, and transportation of S. molesta may help in the prevention of further spreading.
  In Caddo Lake, efforts to eradicate S. molesta have included the farming and introduction of salvinia weevils which eat the plant. They are used as a method of biological pest control which from anecdotal evidence show a positive yet slow success rate.
  Mapping
  Satellite images are used to identify S. molesta in reservoirs in Texas.
  Chemistry
  The phenolic compounds 6'-O-(3,4-dihydroxy benzoyl)-beta-D-glucopyranosyl ester, 4-O-beta-d-glucopyranoside-3-hydroxy methyl benzoate, methyl benzoate, hypogallic acid, caffeic acid, paeoniflorin and pikuroside can be isolated from Salvinia molesta.
  GRIN-Global Web v 1.9.7.1: Taxonomy profile of Salvinia molesta
  USDA Plants Profile for Salvinia molesta (kariba-weed)
  Salvinia molesta information from the Hawaiian Ecosystems at Risk project (HEAR)
  US Geological Survey: Giant Salvinia
  Texas campaign to prevent spread: Hello Giant Salvinia, Goodbye Texas Lakes
  United States National Agricultural Library, National Invasive Species Information Center" Species profile for Giant Salvinia (Salvinia molesta) – general information and control resources.''