Invasive Species

Eurasian Water Milfoil


Eurasian water-milfoil is an invasive plant that is native to Asia, Europe and Northern Africa. Since it’s introduction to North America in the 19th century, it has now become one of the most widespread invasive aquatic plants on the continent. This plant is spread easily from boats and other recreational activities, as broken plant fragments readily root and infest new areas.

Eurasian water-milfoil is identified by its feather like leaves that arranged in whorls around the plant stem. In July and August, small red flowers are visible just above the water’s surface.

Effects on our Ecosystems

The impact of Eurasian water-milfoil on our waterways can be severe. It can cause loss of native plant species through competition; reduced oxygen levels in the water leading to fish death; thick mats of plants hindering recreation activities such as swimming and boating; and dense stands leading to water stagnation and increased mosquitoes.

What You Can Do:

Clean, Drain and Dry Program

The New Brunswick Invasive Species Council and the KWRC recommend to clean, drain and dry all recreational equipment used in our waterways. By following these 3 simple steps, you are actively preventing the spread of invasive species in our watershed.


Eurasian Water Milfoil Hot-Spots

EWM found
EWM found in abundance


We are working hard to improve our understanding of invasive species in our watershed and as we do so, we will be adding more information to this page.