Flumigard Herbicide

Overview

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.

Dosage Rates

Treatment Area	Surface Application	Subsurface Application	Gallons of Water
1 Acre (43,560 Sq Ft)	6-12 Ounces	64 Ounces (4 lbs)	8 Gallons
1/2 Acre (21,780 Sq Ft)	3-6 Ounces	32 Ounces (2 lbs)	4 Gallons
1/4 Acre (10,890 Sq Ft)	1.5-3 Ounces	16 Ounces(1 lb)	2 Gallons
1/8 Acre (5,445 Sq Ft)	.75-1.5 Ounces	12 Ounces	1 Gallon

Please note: Above are recommendations. Always read the Product Label

When to Apply

Flumigard has no temperature restriction, but it should only be applied when weeds are actively growing. In areas with dense weed vegetation only treat 1/2 the water body at one time and wait 10-14 days before treating the remaining area. This helps lower the fish loss during hot weather. Do not re-treat the same section of water within 28 days of application.

Flumigard is most effective when applied to young, actively growing weeds in water with a pH of less than 8.5.
Treatments made after September may be less effective depending upon water temperatures and weed growth. Occasionally, a second application will be necessary if heavy regrowth occurs or weeds reinfest from untreated areas

How to Apply

Surface Application - Mix .75-1.5 Ounce of Flumigard with 1 gallon of water for every 1/8 acre (5,456 feet).
Subsurface Application - Mix 2.2-4.4 Ounces of Flumigard with 1 gallon of water for every 1/8 acre (5,456 feet) per 1' average depth. i.e. 1/8 acre with 3' average depth would require 12 Ounces (4 Ounces x 3)
Mix the amount of Flumigard and Treatment Booster Plus (if using) with water in a tank sprayer according to label instructions. Spray onto floating weeds and algae, or place the tip beneath the water's surface. Over time, the weeds will begin to brown and die. Once completely dead, use a rake, like the Pond & Beach Rake, to remove dead weeds to prevent an accumulation of dead plant material and muck.
We recommend adding water to your tank sprayer first, then add the Flumigard. Once the water and Flumigard have been mixed gently shake the sprayer to allow for complete mixing. Mix only the amount of spray solution that can be applied the day of mixing. Apply Flumigard within 12 hours of mixing.