Description:
Watermilfoil is a submerged aquatic plant that grows in fresh and
salt water up to 14 feet deep. It has a feather-like appearance.
It's leaves collapse around the stem when removed from the water.
Mature leaves are whorls around the stems. Each leaf has 12 or more
leaflets per side. The upper leaves and stems may be reddish-brown
or pink. Spikes rise above the water surface to produce seeds, then
submerge after pollination.
- Mechanical:
Once Watermilfoil starts growing it is almost impossible to control.
New infestations can be controlled by physically pulling the entire
plant (with roots) and removing it from the water body.
- Biological:
Unknown
- Herbicide:
Do not use herbicides in wetland or aquatic areas without first
contacting your local Weed Control Agency. Refer to the State
Noxious Weed Control Board site
For More Information:
Detailed information about Eurasian
Watermilfoil is available at the Washington State Noxious Weed
Control Board Web Site. |
