Invasive Species Control

Chinese Mystery Snail

Invasive Species in SNC Jurisdiction

There are over 20 invasive species including terrestrial and aquatic plants, fish, aquatic invertebrates, and forests pests that were reported in the SNC jurisdiction.

Terrestrial Invasive Plants:

  • Common Buckthorn, Dog-strangling Vine, Garlic Mustard, Giant Hogweed, Glossy Buckthorn, Goutweed, Japanese Knotweed, Phragmites, Purple Loostrife, and Wild Parsnip

Aquatic Invasive Plants:

  • Eurasian Water Milfoil, European Frog-bit, Flowering Rush, and Yellow Iris

Fish, Invertebrates and Insects:

  • Chinese Mystery Snail, Round Goby, Rusty Crayfish, Zebra Mussels, Emerald Ash Borer, and Invasive Earthworms

Invasive species are a concern as they disrupt the natural ecology of ecosystems and biodiversity by outcompeting native species for food and habitat, which can have an impact on forestry, fishing and agricultural industries. Problems can occur when a species is moved to an area outside of its natural range and into an ecosystem that it could not get to on its own.

SNC has been working every year to monitor and control populations of invasive species and has hosted various community outreach events including the removal of Japanese Knotweed, Glossy Buckthorn, and Chinese Mystery Snail where residents can get involved in invasive species control. 

In partnership with the Ontario Federation of Anglers and Hunters (OFAH), a student based out of the SNC office spends the summer completing educational and outreach initiatives and monitoring of invasive species.  The student promotes outreach materials to recreational boaters, cottagers, tourism operators, anglers and gardeners regarding different invasive species in the SNC jurisdiction. 

Preventing Spread of Invasive Species

One of the ways to prevent the introduction of invasive species in new places is to become aware of what kinds of invasive species are present in Ontario.  Many invasive species look very similar to native species.  For example, Giant Hogweed looks very similar to Cow Parsnip and Queen Ann’s Lace. 

Learn how you can prevent the introduction and spread of unwanted invasive species throughout the jurisdiction:

  1.  Use native species for gardening and landscaping purposes.  This is a common way that invasive terrestrial species spread to different areas. Consult the Grow Me Instead Campaign presented by the Ontario Invasive Plant Council for Southern Ontario here.
  2.  Do not dispose of garden waste, aquarium fish, baitfish, or earthworms in a water body.  They can easily spread. Boaters are encouraged to clean, drain and dry their boat before going to a new waterbody.
  3.  When biking, hiking, or driving an ATV, be sure to clean equipment thoroughly.  Mud can carry the seeds of invasive plants and promote their spread. 

It is important to never move flora or fauna outside of their native habitat, and remove the invasive species already existing in your area. Landowners should check regularly to ensure that invasive plants have not established themselves on their property. To report an invasive species sighting within the South Nation Watershed, please contact us. Please include a description of the location and a photo, if possible.

Useful Links for Additional Information

Invading Species Awareness Program

Environment Canada: Invasive Alien Species in Canada

Invasive Species Fact Sheets 

Mystery Snails Invade the South Nation