Control Water Pennyworts

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

Manual/Mechanical Control:

If you are considering how to remove pennywort, physically cutting this plant and digging up the roots can be a somewhat effective method of control. However, physical control can be difficult. Pennyworts can re-grow from any seeds or roots remaining in the area.

Herbicide Control:

There are multiple options for how to kill pennyworts that offer great or good 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.
2. Dibrox (for ponds or lakes) – liquid that is diluted with water and sprayed over the plants, fast acting.

Treatment Tips:

When treating water pennywort,

• Treat when the plants are established and actively growing.