Invasive plant species: “black” list of species established by the Swiss Commission for the Conservation of Wild Plants
The EPPO Working Party on Phytosanitary Regulations and Council have agreed that EPPO should develop activities in the field of invasive alien species. It is recognized that quarantine pests are one category of invasive alien species, but that EPPO activities should be extended to other invasive alien species which may present risks to cultivated or wild plants. Therefore, from now on the EPPO Secretariat will try to gather information on invasive species, including in particular invasive plants.
In Switzerland, the Swiss Commission for the Conservation of Wild Plants has gathered a “black list” of invasive neophytes which are particularly aggressive and harmful for the environment (including for certain species risk for human health, indicated below with an asterisk). It is clearly stated that present populations of these invasive species should be reduced as much as possible and that any further spread should be avoided.
Scientific name Origin
Highly invasive species
Heracleum mantegazzianum* Caucasus
Impatiens glandulifera Himalaya
Reynoutria japonica (Fallopia japonica Far East
or Polygonum cuspidatum)
Rubus armeniacus Caucasus
Solidago canadensis* North America
Solidago gigantea (S. serotina)* North America
Other invasive species
Ambrosia artemisiifolia* North America
Artemisia verlotiorum Far East
Buddleja davidii China
Cornus sericea (C. stolonifera) North America
Elodea canadensis North America
Erigeron annuus North America
Helianthus tuberosus North America
Impatiens parviflora Asia
Polygonum polystachyum Himalaya
Rhus typhina (R. hirta)* North America
Robinia pseudacacia North America
Senecio inaequidens South Africa
Invasive species present in the South of the Alps
Ailanthus altissima China
Lonicera japonica Far East
Phytolacca americana North America
Anonymous (2002) Plantes sauvages: production et utilisation des semences et des plants. Recommandations 2001. CPS (editeur) Commission Suisse pour la conservation des plantes sauvages.
Revue Suisse d’agriculture, 34(1), cahier spécial, 12 pp.
Web site of the CPS (Swiss Commission for the Conservation of Wild Plants)