Closed consultation

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

We are analysing your feedback

Visit this page again soon to download the outcome to this public feedback.

Feedback received

Interim response

Detail of feedback received

A summary of consultation responses and the government response to the consultation was due to be published by mid-November 2019. In the light of the recent decision to hold a general election and the associated pre-election period we are unable to publish these until after the new UK government has been formed.

Defra and the Welsh Government are therefore issuing this statement setting out their joint position ahead of the Enforcement Order coming into force on 1 December.


Seeking views on proposed management measures for invasive alien species (also known as invasive non-native species) which are widely spread in England and Wales.

This consultation was held on another website.

This consultation ran from

Consultation description

We want to know what you think about our plans for managing invasive alien species (IAS) which are widely spread in England and Wales. These plans set out how we will effectively manage these species as required in The Invasive Alien Species (Enforcement and Permitting) Order 2019.

The 14 species identified as being widely spread in England and Wales and requiring management are:

  • Plants

    • 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)
  • Animals

    • 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”
Published 18 July 2019
Last updated 1 November 2019 + show all updates
  1. Added an interim response to this consultation.
  2. First published.