Water Stargrass

Control Water Stargrass

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


Manual/Mechanical Control:

If you are considering how to remove water stargrass, physically raking this plant and digging up the roots can be a somewhat effective method of control. However, physical control can be difficult. Water stargrass can re-grow from any roots remaining in the water.


Herbicide Control:

There are multiple options for how to kill water stargrass that offer great control.

  1. Spritflo (for ponds with no outflow) – liquid that is poured and spreads throughout the entire body of water, offers extended control.
  2. Hydrothol (for lakes) – granules that are broadcast over the plants.
  3. Aquathol K/Super K (for lakes) – liquid that is diluted with water and sprayed or granules that are broadcast over the plants.
  4. Imox (for ponds or lakes) (for submerged portions) – liquid that is mixed and diluted with water and sprayed over the plants.


Treatment Tips:

  • Spritflo can be used at the first signs of growth.
  • With other herbicides, treat when the plants are established and actively growing.
  • If using Imox, check the label for rates or call Lake Restoration. You will use a much higher rate for within the water column than for other plants that are emerged.
Recommended Products