Giant rhubarb
Gunnera tinctoria
Status:
Established
Habitat:
Terrestrial
Threats:
Competition with native species.
Grey squirrel
Sciurus carolinensis
Status:
Established
Habitat:
Terrestrial
Threats:
Threatens red squirrel and woodlands.
Gyrodactylus salaris
Gyrodactylus salaris
Status:
Potential
Habitat:
Freshwater
Threats:
Serious negative impacts on salmonid stocks.
Harlequin ladybird
Harmonia axyridis
Status:
Established
Habitat:
Terrestrial
Threats:
Alert: Specimen found in Ireland.
Himalayan balsam
Impatiens glandulifera
Status:
Established
Habitat:
Terrestrial
Threats:
Competition with native plants & collapsing of river banks
Hottentot fig
Carpobrotus edulis
Status:
Established
Habitat:
Terrestrial
Threats:
Changes to dune environments.
Japanese arrowroot
Pueraria montana var. lobata
Status:
Potential
Habitat:
Terrestrial
Threats:
Competition with native species.
Japanese knotweed
Fallopia japonica
Status:
Established
Habitat:
Terrestrial
Threats:
Reduction of species diversity.
Kudzu vine
Pueraria lobata
Status:
Potential
Habitat:
Terrestrial
Threats:
Crowds out native shrubs and trees
Invasive Species Ireland

Invasive Species Ireland