Control Salvinia

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

Click here to read more about identifying this plant.

Manual/Mechanical Control:

If you are considering how to remove Salvinia, physically raking or seining this plant can be a somewhat effective method of control. However, physical control can be difficult. Salvinia can re grow from any fragments remaining in the water.

Herbicide Control:

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

• Spritflo (for ponds with no outflow) – liquid that is poured and spreads throughout the entire body of water, offers extended control.
• 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.
• 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 Salvinia,

• Treat when the plants are established and actively growing.
• Spritflo can be used at the first signs of growth.
• 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.