American water willow growing in a line in a lake.

Control American Water Willow

Many people ask how to get rid of American water willow. The following options can be considered for how to control American water willow.


Manual/Mechanical Control:

If you are considering how to remove American water willow. physically cutting this plant or grazing can be a somewhat effective method of control. However, physical control can be difficult. American water willow can re-grow from any seeds or roots remaining in the water.


Herbicide Control:

There is an option for how to kill American water willow that offers great control.

  1. Liquid 2, 4-D (for ponds or lakes) – liquid that is diluted with water and sprayed over the plants. Most effective on treatment areas larger than a half-acre, this allows longer contact exposure time.


Treatment Tips:

When treating American water willow,

  • Treat when the plants are established and actively growing.
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