Control Duckweed
Many people ask how to get rid of duckweed. The following options can be considered for how to control duckweed.
Manual/Mechanical Control:
If you are considering how to remove duckweed, physically seining this plant can be a somewhat effective method of control. However, physical control can be difficult. Duckweed can re-grow from any buds remaining in the water.
Herbicide Control:
There are multiple options for how to kill duckweed that offer great control.
- Dibrox (for ponds or lakes) – liquid that is diluted with water and sprayed over the plants, fast acting.
- 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.
When treating duckweed,
- It is important to apply product evenly over all active plant growth; this plant can replicate rapidly from untreated or surviving plants.
- Make sure you have identified the correct plant. Duckweed and watermeal are often confused. Proper identification can help save time, effort, and money.
- Spritflo can be used at the first signs of growth.
Recommended Products
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Dibrox®
$29.00 – $142.00 -
Spritflo®
$119.00 – $1,799.00 -
Semera®
$74.00 – $449.00 -
Flumigard®
$74.00 – $449.00