Control Crested Floating Heart

Many people ask how to get rid of crested floating heart. The following options can be considered for how to control crested floating heart.

Manual/Mechanical Control:

Manual or mechanical control of crested floating heart is not practical.

Herbicide Control:

There are multiple options for how to kill crested floating heart that offer great or some control.

1. Dibrox (for ponds or lakes) – liquid that is diluted with water and sprayed over the plants, fast acting.
2. Hydrothol (for lakes) – granules that are broadcast over the plants.
3. Cattail and Water Lily Control (Imox + surfactant) (for ponds or lakes) – liquids that are mixed and diluted with water and sprayed over the plants.
4. 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.
5. Aquathol K/Super K (for lakes) – liquid that is diluted with water and sprayed or granules that are broadcast over the plants.

Treatment Tips:

When treating crested floating heart,

• Treat when the plants are established and actively growing.
• With Imox or other systemic herbicides, treatment is most effective when the plants are mature or close to full grown. This allows for more plant surface to spray enough mixture on.
  • Treat in late summer to early fall to get better kill of the root systems. At this time, plants are pulling energy into their roots to store for the winter.