Identification guides and species information

View identification guides for many invasive species from: Identification guides –

Access referenced species profile accounts with interactive distribution maps by using the ‘Search for a non-native species’ search box widget on this website or go directly to the  Species Profile Browser · Species Profile (

Additional identification and information resources on Invasive Alien Species of Union concern available from the European Commission:

Control and management

Caution! – these guidance documents may not refer to nor take into account Irish authorizations or regulations or any up-dates of them. These documents will guide you in management approach but be mindful to have site specific plans and to ensure compliance with Irish law. Check with your local authority if on-site disposal authorizations are needed. If you are removing an invasive species from a site, you will need to first apply to the National Parks and Wildlife Service for a licence to do so (Regulation 49 of S.I. 477).

RAPID (Reducing and Preventing IAS Dispersal) LIFE project  – Good Practice Management guidance documents:

American Mink

American Skunk Cabbage
Carpet Sea Squirt
Curly Waterweed
Floating Pennywort
Giant Hogweed
Himalayan Balsam
New Zealand Pigmyweed
Japanese knotweed
Pacific Oyster










The Property Care Association offer invasive species guidance, which includes the following documents on Japanese knotweed;

PCA. Code of Practice. Management of Japanese knotweed. April, 2018
PCA. Guidance Note. Root barrier and Japanese knotweed Remediation. January, 2019











Transport Infrastructure Ireland have published these documents on management of invasive aliens plants on National Roads:

TII – Management of Invasive Alien Plant Species on National Roads – Technical Guidance. Dec 2020
TII – Management of Invasive Alien Plant Species on National Roads – Standards. Dec 2020


Smith, et al. (2022). A manual for the management of vertebrate invasive alien species of Union concern, incorporating animal welfare. 1st Edition. Technical report prepared for the European Commission

The National Biodiversity Data Centre does not undertake practical control on the ground nor are we an advisory body on control. However, these details and resource links may help guide your actions.


Site Notice, Invasive Plant species – Do Not Cut. Free to download, share, print, add logo. Courtesy of Galway Co. Co.


Invasive Species Ireland – Invasive Species Action Plans (ISAPs)

The below Invasive Species Action Plans were developed under the Invasive Species Ireland initiative.  The overall aim of the plans is to put in place mechanisms to prevent introduction or new introductions of the species to Ireland, and, to set out actions required for successful implementation and guidance on methods for eradication/control of the target invasive species in Ireland.


Chinese Mitten Crab
Fringed Water Lily
Giant Rhubarb


Hottentot Fig
New Zealand Pigymyweed
Non-native Crayfish
Parrots Feather


Ruddy Duck
Rhododendron and Cherry laurel
Small Predatory Mammals
Water Fern
Water Fern
Water Primrose


Wild Boar



Playlist of invasive species videos is available from the National Biodiversity Data Centre’s YouTube Chanel: Invasive Alien Species – YouTube

Check Clean Dry biosecurity campaign resources


In Ireland

Inland Fisheries Ireland:

National Parks and Wildlife Service:

Waterways Ireland:

Leave No Trace: 

In the United Kingdom

Invasive Species Northern Ireland:

GB Non-native Species Secretariat:

European IAS Networks and information databases

NOBANIS – European Network on Invasive Alien Species

EASIN -European Alien Species Information Network

DAISIE – Delivering Alien Invasive Species Inventories for Europe

AquaNIS – European marine alien species database

International IAS Networks

GISID – Global Invasive Species Database

GISIN – Global Invasive Species Information Network

ISSG – Invasive Species Specialist Group

CABI – Invasive Species Compendium

Online journals (open access)

Aquatic Invasions –

BioInvasions records –

Management of Biological Invasions –