Closed – consultation: Invasive alien species: management measures for widely spread species in England and Wales

Closed 11:45pm on 12 September 2019

Defra and the Welsh Government are seeking views on plans for managing invasive alien species (also known as invasive non-native species) which are widely spread in England and Wales. These plans set out how the species will be effectively managed as required by The Invasive Alien Species (Enforcement and Permitting) Order 2019. The EU Invasive Alien Species Regulation came into force in 2015.  It applies restrictions on 49 invasive non-native species of most concern in Europe. 14 of these species have been identified as being widely spread in England and Wales and the Regulation requires effective management measures to be put in place, so that the impact of such invasive species on biodiversity, the related ecosystem services and, where applicable, on human health or the economy are minimised.  Management measures can consist of lethal or non-lethal, physical, chemical or biological actions aimed at eradication, population control and containment of a population of species.

The 14 species identified as being widely spread in England and Wales and requiring management are listed below. Most are freshwater but the list includes Chinese mitten crab which occurs in salt and freshwater environments.


  • Nuttall’s waterweed (Elodea nuttallii)
  • Chilean rhubarb (Gunnera tinctoria)
  • Giant hogweed (Heracleum mantegazzianum)
  • Floating pennywort (Hydrocotyle ranunculoides)
  • Himalayan balsam (Impatiens glandulifera)
  • Curly waterweed (Lagarosiphon major)
  • American skunk cabbage (Lysichiton americanus)
  • Parrot’s feather (Myriophyllum aquaticum)


  • Egyptian goose (Alopochen aegyptiacus)
  • Chinese mitten crab (Eriocheir sinensis)
  • Muntjac deer (Muntiacus reevesi)
  • Signal crayfish (Pacifastacus leniusculus)
  • Grey squirrel (Sciurus carolinensis)
  • all subspecies of (Trachemys scripta) otherwise known as ‘slider terrapins’

For more information follow this link.


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