Priority Invasives

The Priority Invasive Species List

          This current list of selected,  well established invasive species (dubbed the "Sour 16") are considered the worst invasive species in the SuAsCo watershed by the SuAsCo CISMA. These species are heavy invaders and resistant to most efforts to eradicate them. However, these species are certainly not the only invasive species.  There is an ongoing competition for the worst ones.

          The demands on personnel and finance tend to prevent their complete removal. Attempts to remove these species tend to be focused on preventing their spread and rely on biological and chemical controls to cover large areas. It is a constant battle to keep them under control and we recommend any landowners in the watershed remove them when discovered by the best means they have available.

The individual Priority invasive species are listed below and on the side menu. The common names are links to specific information on each species.

Autumn Olive (Elaeagnus umbellata)  
Black Swallowwort (Cynanchum louiseae syn: Cynanchum nigrum)  
Burning Bush (Euonymus alatus)  
Bush Honeysuckle (Lonicera spp.)  
Common Reed (Phragmites australis)  
Eurasian Watermilfoil (Myriophyllum spicatum)  
Garlic Mustard  (Alliaria petiolata)  
Glossy Buckthorn (Frangula alnus)  
Japanese Barberry  (Berberis thunbergii)  
Japanese Knotweed  (Fallopia japonica)  
Multiflora Rose (Rosa multiflora)  
Oriental Bittersweet (Celastrus orbiculatus)  
Purple Loosestrife (Lythrum salicaria)  
Spotted Knapweed (Centaurea stoebe)  
Tree-of-Heaven (Ailanthus altissima)  
Water Chestnut (Trapa natans)