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Celsius WG Herbicide

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Safe for use year round on the most important warm-season turf types

Celsius™ controls weeds at high temperatures, allowing the turf to reach its optimal density during the most favorable time of year for growing warm-season grasses. There is no better weed control than dense and healthy turf.

Unlike some other post-emergent herbicides, LCOs can feel confident applying Celsius because it is safe to use year round at high temperatures on St. Augustine and centipede turf without risk, damage, or fear of significant phototoxicity. Celsius is a post-emergent herbicide. With some pre-emergent control, Celsius also allows turf to release into areas where weeds once lived. Newest generation post-emergent herbicide. Celsius features two new actives - iodosulfuronmethyl- sodium and thiencarbazone-methyl - and gives turf managers a new tool for managing resistance to some existing post-emergent herbicides.

Target Pests

Celsius controls more than 150 weeds including Annual and Perennial Broad leaf Weeds and Grasses many difficult-to-control broad leaf and grassy weeds (see chart on reverse side for details).

For Use In

Warm-Season Turf Types Only (St. Augustinegrass Bermudagrass Centipedegrass Zoysiagrass) listed in this label in Commercial and Residential Sites NOT FOR USE on bahiagrass or cool-season turf types including tall fescue fine fescue Kentucky bluegrass perennial ryegrass or creeping bentgrass


Celsius is safe to use at high temperatures and gives LCOs the freedom to make post-emergent applications when it's convenient for them.

Coverage Area

Celsius has three use rates depending upon the weeds that are to be controlled. The annual use rate for weeds can vary from 2.5 - 4.9oz./acre in a single application to a maximum use rate of 7.4 oz/acre annually. Celsius uses 25-75 percent less active ingredient than current post-emergent herbicides. Exceptional control of broadleaf and grassy weeds, application convenience, flexibility and residual

Time to Kill

The soil activity of Celsius provides a barrier of control for up to 60 days after the application is made.

Mix Rate

For spot treatments only For spot treatment applications, add the specified Celsius rate of 0.057- 0.113 oz. (1.6-3.2 grams) to one gallon of water. Spray weeds to wet. One gallon of spray solution will treat up to 1,000 ft.2 Add 0.25% v/v of non-ionic surfactant (NIS) or methylated seed oil (MSO) in the spray solution. Not all spoons are alike. In order to ensure proper use rate, the spoon should be tested and weighed first. Use kitchen or cooking type measuring spoons. Use level teaspoon or tablespoon when measure out the celsius wg herbicide Low rate is 0.057 oz. or 1.6 grams per gallon water Middle rate is 0.085 oz. or 2.4 grams per gallon water High rate is 0.113 oz. or 3.2 grams per gallon water

Active Ingredient

Thiencarbazone-methyl 8.7% Iodosulfuron-methyl-sodium 1.9% Dicamba 57.4%

Celsius WG Herbicide

Quick Overview of Celsius WG

We are proud to carry Celsius WG in stock here at Solutions Pest & Lawn because it delivers exceptional results. Celsius WG provides one of the broadest spectrums of control on the lawn care market among post-emergent herbicides. Celsius WG can control more than 150 weeds, including many difficult-to-control broadleaf and grassy weeds. This product also boasts best-in-class safety on St. Augustine grass and centipede turf types.

Fantastic control on some of the most stubborn invasive weeds and grasses
Convenient application window without high temperature limitations
Low risk of significant phytotoxicity at high temperatures
Can deliver successful control using 25–75% less active ingredient than current post-emergent herbicides
Easy-to-use wettable granule formulation

Product Q & A

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Browse 12 questions Browse 12 questions and 16 answers
Can I use on st. Augustine in the fall?
A shopper on Sep 16, 2017
BEST ANSWER: Celsius WG would be less effective if you apply it during the fall, as most weeds are going dorman.

Better to apply a pre-emergent in the fall and spring, then apply Celsius WG herbicide when the lawn is actively growing in the spring.

Will Celsius kill broadleaf weeds and grass in Bermuda?
A shopper on Oct 21, 2017
BEST ANSWER: Yes, Celsius WG is a Herbicide for the Control of Annual and Perennial Broadleaf Weeds and Grasses in Warm-Season
Turf Types (St. Augustinegrass, Bermudagrass, Centipedegrass, Zoysiagrass,)
Will it kill stickers?
A shopper on Dec 29, 2017
BEST ANSWER: https://www.solutionsstores.com/prodiamine-65-wdg-barricade-herbicide

I would recommend using a pre-emergent to control them before they start. After as a post emergent control of Stickers and other weeds you can use Celsius WG Herbicide for Control of Annual and Perennial Broadleaf Weeds and Grasses in Warm-Season
Turf Types (St. Augustinegrass, Bermudagrass, Centipedegrass, Zoysiagrass,) listed in this label in
Commercial and Residential Sites*
Can Celsius be used on st.augustine lawns?
David C on Aug 19, 2017
BEST ANSWER: Yes you can use Celsius WG on St Augustine grass. It can even be used during the hot summer months. It is a good product just expensive.
How many oz of celsius would mix with 50 gals of water??
A shopper on Dec 6, 2017
BEST ANSWER: 2.5 to 5.9 ounces per acre application of Celsius WG herbicide. It depends on the level you decide to put out, low rate or high rate.
Do I have to use surfactant in 75 degree temp?
A shopper on Nov 27, 2017
BEST ANSWER: It is always advisable to use a surfactant with all herbicide applications, just will help it work better.
Is this herbicide safe on lawns used by small dogs (11 lbs)?
Nancy W on Nov 25, 2017
BEST ANSWER: Yes, Celsius WG will be fine to use on lawns where you have pets. You will want to keep them out of the area while applying and let it have time to completely dry.
Should I apply before or after mowing?
Brenda B on Oct 1, 2017
BEST ANSWER: You will want to apply the Celsius after moving,
Your video demonstration said to dilute X grams of Celsius product per gallon. What would that be in Tablespoons or teaspoons for Virginia Button Weed in St. Augustine?
A shopper on Sep 26, 2017
BEST ANSWER: Use the Celsius to control Virginia Button weed 0.68 Teaspoons per gallon of water, to cover 1,000 square feet of area.
the date on my bottle of Celsius is 11/2016. Has it expired?
A shopper on Sep 22, 2017
BEST ANSWER: Those would be manufacture dates or lot numbers, but it has not expired. We receive new shipments almost weekly.
Will this product take care of annual blue grass .(poaunna)
Turfmedic on Mar 30, 2017
BEST ANSWER: The product that will work best for this weed will be the Revolver. It will provide the perfect coverage for this weed.
Should you water after applying Celsius herbicide
Dottie on Mar 6, 2017
BEST ANSWER: No you want it to completely dry and have a 4 hour rain fast time.

Customer Reviews

4.0 / 5.0
1 Review
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1 Stars
Very good product
It's a very good product for use on Centipede grass to get rid of weeds.
August 18, 2017
11 months ago

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