Product Features

  • Post-emergent herbicide for warm season turfs
  • Controls over 120 broadleaf & grassy weeds
  • Available in single packs that cover 2,000 sq ft at the high rate
Price/Ea.
$146.95

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Average Rating

4.5 out of 5 stars Rating: 4.4

82 Reviews | 242 Q&A

Product Overview

CELSIUS WG Herbicide is a post-emergent herbicide designed to tackle a broad spectrum of tough weeds in warm-season turfgrasses.  Containing three active ingredients, this foliar-applied weed killer controls more than 120 annual and perennial broadleaf weeds and grasses.  Celsius herbicide delivers effective weed control in St. Augusitinegrass, Bermudagrass, Centipedegrass, Zoysiagrass and Buffalograss.

Coming in an easy-to-use wettable granular formulation, Celsius WG Herbicide needs to be mixed with water before applying. It can be used on residential lawns, commercial lawns, golf courses, sports fields, parks, campsites, recreational areas, roadsides, school grounds, cemeteries, sod farms.  Celsius can be used to control weeds such as dollarweed, doveweed, crabgrass, Virginia buttonweed, dandelion, bull paspalum and many more.

After applying Celsius weed killer, weed growth ceases within a matter of hours.  The weeds will progress from yellowing or turning red or purple to necrosis, resulting in the plant death within 1 to 4 weeks after application.  The speed of symptom development varies with temperature and will be faster at warmer temperatures. For best results to control mature weeds, you should apply Celsius WG when the daily average temperature is above 60° F.   Applications of Celsius Herbicide should be made to actively growing weeds.  Weed control may be reduced if applications are made in the presence of heavy dew, fog, and mist/rain or when weeds are under stress due to drought.

Dallisgrass:  Please note that Celsius herbicide is labeled for suppression of dallisgrass only and can only be used for dallisgrass when tank mixed with another herbicide such as MSMA or Revolver (which are not for residential use).

Available Sizes:

  • 10oz Bottle – treats up to 2 acres.
  • Single Dose 0.226 oz pack - treats up to 2k sq ft. at the high rate and 4k sq ft at the low rate

NOTE:  Not Labeled for Use on Cool-Season Turf Grasses

Features and Specs

Active Ingredient Dicamba 57.4%, Iodosulfuron-methyl-sodium 1.9%, Thiencarbazone-methyl 8.7%
Target pests Annual and Perennial Broadleaf Weeds and Grasses
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
Pet safe Yes, when used according to the labeled instructions.
NOT FOR SALE TO AK, CA, NY
CT, VT, WA (Restricted To Licensed Applicators Only)
Due to state tax laws, Washington residents must purchase their specific state option when adding the 10 oz size to your cart.
Coverage Area 10 oz bottle: treats up to 2 acres. Single Dose 0.226 oz packs: treats up to 4k sq ft
Shipping Weight 0.78 lbs
Manufacturer Envu (Formerly Bayer) (Mfg. Number: 79714858)
EPA Registration 432-1507

Details

TURF TOLERANCE
Celsius WG Herbicide has been tested and can be used on the following types of turfgrass and their cultivars:

  • St. Augustinegrass (Floratam, Palmetto, Bitter Blue, Common, Amerishade, Raleigh, Sapphire, Delmar, Captiva)
  • Bermudagrass (Tifway 419, Common, Tifsport, Discovery, Celebration, Sahara)
  • Centipedegrass (Tifblair)
  • Zoysiagrass (Meyer, Empire, Crown, Palisades, Cavalier, Zorro, DeAnza, Zenith)
  • Buffalograss (Legacy, Cody)
  • Crested hairgrass (Barkoel)
  • Russian wildrye (Bozoisky)
  • Sporobilis
  • Blue Grama (Elma)

Other turfgrasses and their cultivars may be tolerant to this product. However, tolerance testing should be done prior to use. Some temporary discoloration of certain warm-season grasses may occur when this product is mixed with other herbicides.

WEEDS CONTROLLED

  • Barnyardgrass

  • Blackseed plantain
  • Bracted plantain
  • Broadleaf plantain, common plantain
  • Buckhorn plantain, narrowleaf plantain
  • California burclover
  • Carolina falsedandelion
  • Carpetweed, Indian chickweed
  • Dandelion
  • Common chickweed
  • Common millet,
  • Common ragweed 
  • Common sunflower 
  • Common vetch
  • Creeping beggarweed 
  • Curly dock 
  • Cutleaf evening primrose
  •  Dandelion 
  • Eastern black nightshade 
  • Field madder 
  • Field violet, wild pansy 
  • Giant foxtail 
  • Giant ragweed
  •  Green foxtail 
  • Ground ivy, Creeping Charlie 
  • Hairy bittercress 
  • Hairy nightshade 
  • Henbit Lamium
  • Horse purslane 
  • Johnsongrass
  • Lawn burweed, spurweed 
  • Oxeye daisy 
  • Palmer amaranth
  • Pennsylvania smartweed 
  • Pitted morningglory
  • Quackgrass
  • Rabbitfoot clover 
  • Red sorrel Rumex
  • Redroot pigweed 
  • Shattercane
  • Spiny sowthistle 
  • Stinkgrass 
  • Switchgrass 
  • Tansy mustard
  • Velvetleaf 
  • Venus looking-glass 
  • White clover 
  • White mustard 
  • Wild buckwheat 
  • Wild carrot
  • Wild oat 
  • Wild onion
  • American burnweed Fireweed
  • Asiatic hawksbeard 
  • Black nightshade 
  • Broadleaf signalgrass 
  • Browntop millet 
  • Canada thistle 
  • Canada toadflax 
  • Carolina dichondra, Dichondra
  •  Carolina geranium, wild geranium
  •  Carpetgrass
  • Chamberbitter 
  • Common lambsquarter
  • Common purslane
  • Common waterhemp 
  • Corn speedwell 
  • Creeping speedwell 
  • Dalligrass:  Please note that Celsius is labeled for suppression of dallisgrass only and can only be used for dallisgrass when tank mixed with another herbicide such as MSMA or Revolver (which are not for residential use).  
  • Dogfennel
  • Dollarweed, Pennywort
  •  Entireleaf morningglory 
  • Facelis, trampweed 
  • Fall panicum
  • Field pepperweed 
  • Field sandbur 
  • Fleabane 
  • Florida betony
  • Gophertail lovegrass
  • Green kyllinga 
  • Heartwing sorrel 
  • Heath aster
  • Horseweed, marestail 
  • Ivyleaf morningglory
  • Knawel
  • Lady’s Mantle 
  • Mouse-ear chickweed 
  • Paleseed plantain 
  • Parsley piert
  • Pokeberry 
  • Poorjoe
  • Prickly sida
  • Prostrate knotweed 
  • Red fescue
  • Rescuegrass
  • Russian thistle
  • Shepherd's purse
  • Sicklepod 
  • Slender aster 
  • Sprawling horseweed 
  • Swinecress 
  • Tall fescue 
  • Texas panicum 
  • Thin paspalum, bull paspalum
  •  Virginia dwarf dandelion 
  • White sweet clover 
  • Wild garlic, field garlic 
  • Wild lettuce, tall lettuce 
  • Wild mustard 
  • Yellow foxtail 
  • Yellow rocket
  • Yellow woodsorrel, Oxalis
  • Annual lespedeza 
  • Birdseye pearlwort 
  • Black medic , hop medic 
  • Dallisgrass
  • Doveweed 
  • Florida pusley 
  • Hemp sesbania 
  • Large crabgrass
  • Prostrate spurge 
  • Purple cudweed 
  • Ryegrass (clumpy) 
  • Virginia buttonweed
  • Western ragweed 
  • Whiteleaf sage
Review Search   
Sort Reviews
  • 4 of 5 Stars

    worth the price

    By Rpc on 12/12/2011

    Verified Purchase

    Was hesitant to buy given the price but the Floratam lawn was being overrun with weeds, dollar weed in particular. The product has worked well - kills the weeds without harming the lawn. Only a small amount of the product is needed to create a gallon of spray so the cost will be amortized.

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    139 of 145 people found this review helpful

  • 5 of 5 Stars

    By by crabgrass....

    By Marcus on 07/23/2012

    I wasn't sure at first that this product will work. But as soon as I applied the Celsius to my lawn the crabgrass stop growing and over the course of 4 weeks the crabgrass was dying and almost completely gone,my Bermuda choke it out...

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    84 of 92 people found this review helpful

  • 2 of 5 Stars

    Turf damage warning - Bayer has issued product update

    By Scott on 06/20/2012

    Following the label directions for spot treatment caused moderate and even some small spots of severe damage with clumps of grass (St. Augustine) falling out at the crown. In the update Bayer now recommends against surfactant for spot treatment. Basically, spot treating is not worth the risk due to damage from higher application rates as you focus the spray. The good news is my grass seems to be slowly recovering and the dollarweed and beggarweed were killed within days. The label lists kyllinga but it is still alive where the grass has died back. One weed which Manor/blade kills but this does not is Asiatic Dayflower. I have had some luck getting this to knock back blanket crabgrass but it grows back.

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    70 of 80 people found this review helpful

  • 5 of 5 Stars

    Celsius WG Herbicide works great

    By Pete on 10/11/2012

    Verified Purchase

    It seems like this has worked really well on my lawn trying to get rid of Dollarweed. I've tried Atrazine and Image in the past with minamal results. It did not hurt my Saint Augustine grass at all. I would definitely recommend this product. The only thing I would say is that a 10oz bottle is probably a 10 year supply. So I sprayed my neighbors yard and my mother-in laws yard as well.

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    64 of 66 people found this review helpful

  • 5 of 5 Stars

    Creeping beggarweed in St. Augustine at bay house in Texas.

    By Betty on 06/27/2012

    Verified Purchase

    Creeping beggarweed was taking over my St. Augustine grass at my bay house in Rockport, Tx. Other herbicides I tried did not even phase this weed. I followed the mixing instructions in 1 gal. sprayer with the sufficant added. I used about 6 gallons initially on June 15th and within 5 days the beggarweed was dead or dying. I mixed another gallon this week and spot sprayed the weed where I missed the first time. Thank goodness Celsius kills this obnoxious interloper. Of course, I would like it even more if it was less expensive but under the circumstances I was thrilled to find something so effective on this pest.

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    57 of 58 people found this review helpful

See all 82 customer reviews

Questions & Answers

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Q
Can Celsius WG Herbicide be used on seashore paspalum?
A

Celsius WG Herbicide is labeled to kill paspalum grass and should not be applied to it if that is a desired grass type.
 

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Q
CAN CELSIUS BE USED IN OR ON PERENNIAL CROPS IN THE NURSERY?
A

No, Celsius Herbicide is intended for use on residential lawns, commercial lawns, golf courses, sports fields, parks, campsites, recreational areas, roadsides, school grounds, cemeteries, sod farms. 

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0 of 1 people found this answer helpful

Q
Can I spray Celsius WG now and will it have any effect on the green seeds from buttonweed?

Pulled Buttonweed, but some seeds dropped and see others. What is your recommendation?

A

Celsius WG Herbicide is a post-emergent so therefore it would not effect the seeds, it would only effect germinated seeds. If you are looking for a pre-emergent. You can consider Pendelum 2G Herbicide and verify with your local extension office for optimal timing for prevention on buttonweed in your area. 

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1 of 1 people found this answer helpful

Q
Is Celsius safe for Saint Augustine turf going dormant?

I would like to try a second application to get rid of chamberbitter that survived the first application in September. But now in November, my Saint Augustine turf might be going dormant. I don’t want to damage it with cold weather coming.

A
 

Celsius WG Herbicide is labeled as safe to use on Saint Augustine during any dormant/growing season for actively growing weeds.

The product label does advise that weed control is more rapid when soil temperatures are above 65 degrees and slower when soil temperatures are below 65 degrees. 

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1 of 1 people found this answer helpful

Q
How much Celsius WG Herbicide for 25 gal. of water?

Large clumps of Johnson grass scatted across field.

A

For the control of Johnsongrass, Celsius WG Herbicide recommends applying at the rate of .057 oz per 1k square feet. In order to determine how much water to use, you will need to calibrate your sprayer. Here is a video to assist with that

Per the product label: For broadcast applications, use a minimum of 10 gallons of water per acre. For weed control in dense weed populations, control of weeds under adverse growing conditions, or control of mature weeds, the optimum spray volume is 60 gallons per acre.

Celsius is only labeled to be used on Warm-Season Turf Types Only in Commercial and Residential Sites, it is not labeled to be used in any type of hay field or pasture where animals graze.

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1 of 2 people found this answer helpful

Q
Should I apply this product over my entire yard for Virginia Buttonweed. It seems to be popping up everywhere?
A

Depending on your turf type, Celsius WG Herbicide can be applied as a spot or broadcast treatment. Please see the label for full application instructions and to ensure your turf is tolerant.
 

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Q
Can I spray Celsius WG Herbicide around oak trees?
A

Some ornamentals may be sensitive to Celsius WG Herbicide and since it wasn't tested for use on ornamentals it is best to try and avoid spraying them with Celsius.  We would recommend only spot treating weeds directly inside the dripline of trees/shrubs and avoiding any contact with exposed roots or the trees themselves.

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1 of 1 people found this answer helpful

Q
Is Celsius WG a new product, how long has it been for sale?
A

Celsius WG Herbicide has been on the market since around 2009 and has been widely used across residential and commercial settings for years effectively. 

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Q
Can I use Celsius and Sedgehammer at the same time on my St. Augustine lawn or on consecutive days?
A

Sedgehammer can be mixed with glyphosate products but is not labeled to be mixed with anything else.  We would recommend applying Celsius WG Herbicide as a separate application about a day apart.

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5 of 6 people found this answer helpful

Q
Is Alligare 90 acceptable to use with Celsius WG?
A

Celsius WG Herbicide requires a non-ionic surfactant such as the Alligare 90 so they can be used together. 

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Q
Can I use a combination of blue marker dye and a wetting agent with Celsius WG?

I am preparing to spray next spring when it starts emerging for Virginia Buttonweed in Bermuda Grass. Since my lawn is small, I will be buying two packets since I gather the button weed is very likely to take two applications.

A

Yes, a wetting agent/non ionic surfactant is needed when using Celsius WG. Spray indicators can be added at your discretion. It is used to help avoid overlap and not miss patches of grass. 

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2 of 2 people found this answer helpful

Q
I have Virginia buttonweed invading Asian jasmine ground cover. Will the jasmine tolerate Celsius WG?
A
Celsius WG Herbicide should not be applied to groundcovers including Asian Jasmine. We recommend spot treating with a non-selective herbicide such as Roundup QuickPRO very carefully or manual removal of broadleaf weeds in the groundcover.

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1 of 1 people found this answer helpful

Q
Will Celsius WG Herbicide control junglerice?

Will Celsius control junglerice? I do not see it on the label

A
Celsius WG Herbicide is not labeled for Junglerice.

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0 of 1 people found this answer helpful

Q
Will Celsius WG kill bermuda in a fescue blend sod lawn?

I have an invasion of bermuda in my fescue blend of lawn. I have been spraying Turflon Ester. But that just slows it down, Will this product be more effective? I live in the hot Central Valley of California.

A

No, Celsius WG Herbicide is safe on warm season lawns such as Bermuda. It will not harm it any way. Depending on what type of fescue you have, Gordons Ornamec 170 Grass Herbicide is labeled to control bermuda.  

Please be advised that Bermuda grass is extremely difficult to control and you will likely need to make several applications no matter which product is used and multiple seasons at times.  Best time to apply products to control it is in fall as it is starting to go back into dormancy or the spring when it is coming back out of dormancy. 

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1 of 1 people found this answer helpful

Q
Celsius WG Storage

Accidentally left my Celsius WG bottle under the sun/heat for 2 weeks. Did it go bad and should I buy a new one, or does it still work?

A

Since Celsius WG Herbicide is a granule, the heat should not affect it. If any moisture got in the packaging though, you would need to replace it 

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See all 242 customer questions

Celsius WG Herbicide 4.5 out of 5 stars Rating: 4.4 (82 Reviews / 242 Q&A)

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