Control Quillworts

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

Click here to read more about identifying this plant.

Manual/Mechanical Control:

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

Herbicide Control:

We have a few possible options for how to kill quillworts that may offer control.

1. Dibrox (for ponds or lakes) – liquid that is diluted with water and sprayed over the plants, fast acting.
2. Spritflo (for ponds with no outflow) – liquid that is poured and spreads throughout the entire body of water, offers extended control.
3. Semera or Flumigard + surfactant (for ponds or lakes) – granules that are dissolved and mixed or liquids that are mixed and diluted with water and sprayed over the plants (early morning is best), fast acting.

Treatment Tips:

When treating quillworts,

• Spritflo can be used at the first signs of growth.
• With other herbicides, treat when the plants are established and actively growing.
• Quillworts are not listed on any of the above herbicide labels, but they are broad spectrum herbicides and will control a wide variety of weeds.