Japanese Knotweed
Invasive SpeciesFound in 17 lakes
17
Total Lakes
0
Minnesota
17
Wisconsin
Lakes with Japanese Knotweed
| Lake | County | State | Grade | Depth |
|---|---|---|---|---|
| Long Lake | Bayfield | WI | A | 28 ft |
| Deer Lake | Polk | WI | A | 46 ft |
| Lake Nebagamon | Douglas | WI | A | 56 ft |
| Tabor Lake | Burnett | WI | A | 28 ft |
| Swan Lake | Columbia | WI | A | 82 ft |
| Springville Pond | Portage | WI | A | — |
| Yellow Lake | Burnett | WI | A | 31 ft |
| Big Roche A Cri Lake | Adams | WI | A | 20 ft |
| Balsam Lake | Polk | WI | A | 37 ft |
| Mcdill Pond | Portage | WI | B | 19 ft |
| Wapogasset Lake | Polk | WI | B | 32 ft |
| Balsam Lake Little Balsam Site | Polk | WI | B | 37 ft |
| Alpine Lake | Waushara | WI | B | 18 ft |
| Amherst Millpond | Portage | WI | C | 7 ft |
| Cedar Lake | Polk | WI | C | 32 ft |
| Tainter Lake | Dunn | WI | C | 37 ft |
| Mason Lake | Adams | WI | D | 9 ft |
Frequently Asked Questions
How many lakes have japanese knotweed?
Japanese Knotweed has been documented in 17 lakes — 0 in Minnesota and 17 in Wisconsin.
Does japanese knotweed affect water quality?
Invasive species can significantly affect lake ecosystems. They may alter nutrient cycling, displace native species, and change water clarity. Lakes with japanese knotweed should be monitored for changes in water quality over time.