Giant knotweed
Fallopia sachalinensis
Status:
Established
Habitat:
Terrestrial
Threats:
Quick growing and difficult to control. Habitat generalist.
Giant rhubarb
Gunnera tinctoria
Status:
Established
Habitat:
Terrestrial
Threats:
Competition with native species.
Golden wreath wattle
Acacia saligna (Acacia cyanophylla)
Status:
Potential
Habitat:
Terrestrial
Threats:
Outcompetes 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
Himalayan knotweed
Persicaria wallichii
Status:
Established
Habitat:
Terrestrial
Threats:
Quick growing and difficult to control. Habitat generalist.
Hottentot fig
Carpobrotus edulis
Status:
Established
Habitat:
Terrestrial
Threats:
Changes to dune environments.
Invasive Species Ireland

Invasive Species Ireland