Invasive Species

Most (Un)Wanted Invasive Plant of the Month:

Asiatic/Oriental Bittersweet (Celastrus orbiculatus) - December 2022

• ​Asiatic/Oriental Bittersweet (Celastrus orbiculatus) Fact Sheet

Black Swallowwort/Dog-strangling Vine (Cynanchum louiseae) - November 2022

• Black Swallowwort (Cynanchum louiseae) Fact Sheet
  

Japanese Knotweed (Fallopia japonica) - September 2022

• Japanese Knotweed (Fallopia japonica) Fact Sheet from the Town of Swampscott Conservation Commission

Common Buckthorn (Rhamnus cathartica) and Glossy Buckthorn (Frangula alnus) - August 2022

• ​Common Buckthorn (Rhamnus cathartica) Fact Sheet from the Ecologic Landscape Alliance

• Glossy Buckthorn (Frangula alnus) Fact Sheet from the Ecologic Landscape Alliance

Japanese Honeysuckle (Lonicera japonica) - July 2022

• Japanese Honeysuckle (Lonicera japonica) Fact Sheet from UConn

Multiflora Rose (Rosa multiflora) - June 2022

• Multiflora Rose (Rosa multiflora) Fact Sheet
  

Autumn Olive (Elaeagnus umbellata) - May 2022

• Autumn Olive (Elaeagnus umbellata) Fact Sheet from UConn​
  

Garlic Mustard (Alliaria petiolata) - April 2022

• Garlic Mustard (Alliaria petiolata) Fact Sheet
  

• Garlic Mustard Control from the University of Maine

Japanese Barberry(Berberis thunbergii) - March 2022

• Japanese Barberry (Berberis thunbergii) Fact Sheet
• UConn Barberry Control Methods for Foresters

Winged Burning Bush (Euonymus alatus) - October 2022

• Winged Burning Bush (Euonymus alatus) Fact Sheet from the Ecologic Landscape Alliance