Our #1 Choice for Watermeal & Duckweed Control – 1 lb. Container or 5 lb. Value Pack
Flumigard aquatic herbicide eliminates invasive floating weeds and submerged weeds, such as duckweed and watermeal. It also treats a wide variety of algae and submerged weeds.
Great results in just 7-14 days
No pond sediment accumulation
No swimming or fishing restrictions
Flumigard is a new Aquatic Herbicide that is completely safe for use in lakes and ponds. It has the same active ingredient as Clipper herbicide. Flumigard Aquatic Herbicide selectively controls a number of invasive and nuisance aquatic plants, including submersed plants such as hydrilla, Eurasian watermilfoil, curlyleaf pondweed and cabomba as well as floating plants such as duckweed, giant salvinia, water lettuce and watermeal.
 
The active ingredient in Flumigard is 51% Flumioxazin, which works swiftly and then dissipates quickly from the water column and does not accumulate in sediment.Flumigard is a water soluble granular product that is easy to apply, mix, and handle and offers reduced PPE requirements.