Control Reed Mannagrass

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

Manual/Mechanical Control:

If you are considering how to remove reed mannagrass, physically cutting this plant is not recommended because it can re-grow from any seeds or rhizomes remaining in the area.

Herbicide Control:

There is an option for how to kill reed mannagrass that offers some control.

1. Cattail and Water Lily Control (Imox + surfactant) (for ponds or lakes) – liquids that are mixed and diluted with water and sprayed over the plants.

Treatment Tips:

When treating reed mannagrass,

• 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.