- Invasive Species Research
- Controlling Invasive Species
- Identifying Invasive Species
Invasive Species Research
Knotweed genetics is currently being researched by our staff and members. To learn more about this research scan the QR code below or visit uppersugar.org/Invasive_Species_Program
Controlling Invasive Species
There are many different strategies for controlling invasive species. The method/s used depends on the species, the time of year, the stage of growth, and the location. We have gathered a number of different resources here for you to help you decide what your specific situation requires. Please feel free to email us directly if you have any questions.
USRWA_InvasivesSpecies_Brochure_FINAL_091021
Identifying Invasive Species
The list of invasive species in our area is constantly changing as some species have not yet arrived but are near our borders and being watched for, or unexpected ones inevitably arrive. The list here is not comprehensive, but will hopefully give you a start identifying common invasive species and preventing their spread as you travel and enjoy the outdoors in our counties. For a comprehensive list of invasive species in Wisconsin please visit the Wisconsin DNR’s invasive species website.
If you think you have found an invasive species please report it either to Matt Wallrath at matt@uppersugar.org or to the Wisconsin DNR at Invasive.Species@wi.gov. Photos of the spotted invasive species, size of the population spotted, and the location or ideally the GPS coordinate of the sighting, are extremely helpful.
Invertebrates
Asiatic Clam ![]() |
Emerald Ash Borer | Gypsy Moth |
Japanese Beetle |
Jumping Worm | New Zealand Mud Snail ![]() |
Rusty Crayfish | Spotted Lantern Fly |
Plants
Buckthorn | Canada Thistle |
Cut-leaved Teasle |
Dames Rocket |
Garlic Mustard | Honeysuckle, Non-Native | Johnson Grass |
Knotweed |
Phragmites, Non-Native![]() |
Purple Loosestrife ![]() |
Reed Canary Grass | Wild Parsnip |