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Reward Herbicide

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Reward Herbicide by Syngenta is designed as a non-volatile herbicidal chemical for use as a general herbicide to control listed weeds in non-crop and aquatic areas. Reward L&A controls weeds by interfering with photosynthesis within green plant tissue; effects being visible within just a few days after treatment.

Reward Landscape & Aquatic Herbicide is pet and child friendly if applied properly.

Target Pests

Reward Landscape & Aquatic Herbicide can control or suppress water lettuce duckweed salvinia pennywort frog's bit cattails bladderwort hydrilla watermilfoils pondweeds coontail elodea naiad algae little barley annual bluegrass rescuegrass fescue henbit buttercup carolina geranium and many other listed weeds.

For Use In

Reward Landscape & Aquatic Herbicide is for use in aquatic areas commercial greenhouses and nurseries dormant established turf landscape industrial recreational commercial residential and public areas.


For treatment of weeds within aquatic areas using Reward Herbicide mix at a rate of 1 gallon per surface acre at a depth of 4 feet.

For broadcast application using Reward Landscape & Aquatic Herbicide to industrial non-crop sites use at a rate of 1-2 pints per acre adding a non-ionic surfactant with it per 100 gallons of water.

Water restrictions do apply with Reward Landscape & Aquatic Herbicide except for fishing and swimming.

Coverage Area

Coverage area of Reward Landscape & Aquatic Herbicide will vary depending on application. At a maximum of 1 gallon per acre.

Time to Kill

Reward Landscape & Aquatic Herbicide begins killing weeds withing minutes after application but can take up to several weeks to get complete control depending on the target weed.

Mix Rate

1-2 pints per acre

Active Ingredient

Aquatic Diquat dibromide 37.3%

Reward Herbicide

Reward Herbicide Delivers Fast aquatic weed control that’s easy on surroundings 

Protect and beautify your body of water with Reward® Landscape and Aquatic Herbicide from Syngenta Professional Products. You can successfully use this product to achieve optimal results, without causing harm to the environment. Invasive plant species, introduced to waters throughout the United States, take their toll on beneficial indigenous aquatic species. These invasive species make many waterways difficult, if not impossible, to enjoy. Syngenta and Reward have been trusted names in the aquatic management industry for many years.


Reward Landscape and Aquatic herbicide acts very quickly on green, photosynthesizing plant tissue. Reward combines with the photosynthetic process within treated plants to produce highly reactive free radicals. These free radicals in turn form superoxides that destroy cell membranes and cell walls, leading to overall desiccation of treat plants. Visual results may occur in a few hours under optimal conditions, or may take a couple of days under cloudy, overcast conditions.


While systemic herbicides are slowed by cold weather, Reward remains fast. Reward is effective against winter annuals such as Poa annua, chickweed and others. Even during cold winter moths, visible burndown is apparent in a matter of days, not weeks.


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Product Q & A

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Browse 10 questions Browse 10 questions and 11 answers
What is the mix rate per gallon for Reward?
Mike on Oct 18, 2016
BEST ANSWER: Spot spray:1-2 qts. Reward Landscape and Aquatic Herbicide plus the labeled rate of a 75% or greater nonionic surfactant per 100 gals. of water, or 0.75 oz. (22 mls.) Reward Landscape and Aquatic Herbicide plus the labeled rate of a 75% or greater nonionic surfactant per 1 gal. of water. Broadcast: 1-2 pts. Reward Landscape and Aquatic Herbicide in a minimum of 15 gals. of water per acre. Add the labeled rate of a 75% or greater nonionic surfactant per 100 gals. of spray mixture. Use an adequate spray volume to insure good coverage.
Fish safe for bluegills,perch, catfish?
Bronco on Jun 26, 2016
BEST ANSWER: The problem for fish is not the Reward but the dying plant cover which then oxidizes, removing oxygen from the water. Just spray a portion of the pond at a time.
Can I use the product in water fall pond which has been over run by Japanese rice?
Richard D on Apr 19, 2018
BEST ANSWER: I personally use this as an "off the shelf" product. Not as an herbicide. However while using it in a pond with fish in it. The fish did well @ 15cc per ton or 240 gallons. After about 6 weeks the two rafts of grass that had been in the pond for a couple of years began to die off. So yes, I think it would work for your application. This low dosage was because of the fish.
Does this product get rid of wire grass permanently..?
A shopper on Jul 24, 2018
BEST ANSWER: Permanently no if we do not hit all of the weeds then there is still a chance we will have to reapply as a spot application to hit anything we might have missed.
Can someone produce a simple rate in oz/gal for aquatic plant spraying? Everything is based on acres. I just need to spot spray some aquatic plants, not acres of plants. Plants are near surface but reach down to 2-3'
intherainman on Jul 19, 2018
BEST ANSWER: Spot spray rate is 1 to 2 qts per acre in 100 gallons of water. Smaller rate is 1.5 ounces per 2 gallons of water to cover about 1,000 square feet of area.
Is this product similar to Clipper?
Jill S on Jul 17, 2018
BEST ANSWER: Reward is Diquat dibromide 37.3% and Clipper is Flumioxazin 51.0%
Does it contain copper?
David M on Jun 15, 2018
BEST ANSWER: No, the Diquat does not contain copper but it is recommended to use a copper based product with the Diquat for the elimination of algae and submerged weeds.
Can this product be used for canadian waterweed (submersed) - and how do you apply to a pond?
jaco B on Dec 11, 2017
BEST ANSWER: Yes, it is labeled for control of submerged weeds including Watermilfoils. Follow label instructions but the general recommended rate is .5-2.0 gallons per surface acre. For best results retreat in 14 -21 days.
How long would I have to wait before reapplying the product?
Thomas on Nov 3, 2016
BEST ANSWER: Reward reapplication recommendations:

Spray to completely wet target weeds but not to runoff. Densely packed weeds or mats may require
additional applications due to incomplete spray coverage. Re-treat as needed. For best results, retreat
weed escapes within 2 weeks of the initial treatment.
will reward landscape and aquatic herbicide kill koa and goldfish
John on Jul 2, 2016
BEST ANSWER: Reward Landscape and Aquatic Herbicide is labeled for use in Aquatic situations, Follow applications included in the label.


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