Hampton Union: Invasive species threatens town river Hampton UnionLord told selectmen that the invasive species, commonly known as phragmites, threatens to upset the ecosystem of the river and salt marsh if left unchecked.
Intentional import of plants for ornamental or non ornamental uses (e. g. bioremediation or bioenergy) introduced Hydrocotyle ranunculoides into Europe. They are being used in phytoremediation due to their ability to accumulate heavy metals and phosphorous (EPPO Pest Risk Analysis). Phragmites australis and Typha species are usually used for phytoremediation of contaminants in soil. Phragmites's fast and easy growing however turned into invasiveness. Nevertheless, bioremediation trials have been made in Europe. In Belgium the species was planted along watercourses in the Ghent area, from where it spread towards the border of the Netherlands. The species has also been tested for phytoremediation in Germany, but under controlled conditions. Once invasive aquatic plant is widespread, its control is both expensive and difficult. Therefore organized campaigns and programs should be started soon after observation of new aquatic invaders. Some measures are already being practiced. For example in Michigan, the removal of Phragmites plants is done by means of cutting and burning or in isolated stands by burning, while still standing, under the supervision of fire brigades should be done by the end of October (MI).