Bladderwort with young bladders close up

Control Bladderwort

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


Manual/Mechanical Control:

If you are considering how to remove bladderwort, physically raking or seining this plant can be an effective method of control.


Herbicide Control:

There are multiple options for how to kill bladderwort that offer some 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.


When treating bladderwort,

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