CelsiusWGHerbicide
CelsiusWGHerbicide Celsius WG Herbicide

Celsius WG Herbicide

BAYER

Celsius WG Herbicide

Celsius WG Herbicide is a post-emergent herbicide that comes in the form of wettable granules. Delivers excellent performance on warm-season grasses and removes up to 120 species of annual and broadleaf perennial weeds and grasses.

As low as $12.94
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Celsius WG Herbicide 10 Oz product page
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Celsius WG Herbicide, manufactured by Bayer, is a professional quality herbicide designed for the post-emergent control on warm-season grasses like St. Augustine and has some residual activity to prevent certain weeds from germinating.

This easy to use herbicide comes in the form of water-dispersible granules that must be thoroughly and uniformly mixed in water and applied as a spray. Each pack covers up to 2,000 sq. ft. at the highest rate of application while also delivering lower phytotoxicity in areas with high temperatures.

Celsius WG Herbicide provides broad-spectrum control of grassy weeds like crabgrass with up to 3 active ingredients helping to cease weed growth within hours of application.

Tools Needed

To use Celsius WG Herbicide, you will need to mix the product in a backpack sprayer or hand-can.

How to Use

Adding Celsius WG in a measured cup

  • Step 1: Determine how much Celsius WG Herbicide to use by measuring the square footage of the treatment area. To do this, measure the length and width of the treatment area in feet then multiply them together (length X width = square footage). For acreage, take the square footage and divide it by one acre (square footage / 43,560 sq. ft. = acres). For spot treatments, mix 0.057 to 0.113 oz. (1.6-3.2 g) of Celsius WG Herbicide per gallon of water per 1,000 sq. ft. Do not apply more than a total of 7.4 oz (210 g) of product per acre (0.17 oz or 4.8 g of product per 1,000 sq. ft.) per year (365 days).
  • Step 2: Fill your sprayer tank with half the amount of water, then add the appropriate amount of Celsius WG Herbicide, then fill the tank the rest of the way with remaining half of water. Shake up the sprayer tank until the solution is well-mixed.
  • Step 3: Spray the target weed with the Celsius WG Herbicide mixture, making sure to get even coverage via fan spray setting. Check back after 2 to 4 weeks and if weeds are still present then perform a second application. Do not mow immediately after treating with this product or before spray has dried. After treatment, do not transfer clippings to non-target areas. For best results, do not irrigate until spray has dried.

Where to Use

Use Celsius WG Herbicide on warm-season turf on residential and commercial lawns or commercial properties such as sod farms, sports fields, parks, campsites, recreational areas, roadsides, school grounds, cemeteries, and golf courses (minus golf course greens and collars).

Do not use this product on bahiagrass or cool-season turf types, including tall fescue, fine fescue, Kentucky bluegrass, perennial ryegrass, or creeping bentgrass.

When to Use

Spray Celsius WG Herbicide when turf is established or 4 weeks have passed for newly established turfgrasses. Weed control is more rapid when soil temperatures are above 65 degrees, when soil moisture is adequate for weed growth, and when weeds are not under environmental stress (e.g. drought).

Safety Information

Celsius WG Herbicide is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product.

Do not allow people or pets to enter the treated areas until sprays have dried.

Special Considerations

It is advised not to use a surfactant during spot treatment on St. Augustine grasses because of the risk of damage it can cause to the turf.

AvailabilityOnline
Restricted UseNo
Shipping Restrictions0.226 Ounce: AK, CA, CT, HI, NY, VT, WA
10 Ounce: AK, CA, CT, HI, NY, VT, WA
BrandBAYER
Keith's Pro Tips"Apply Celsius WG Herbicide only to the areas that are necessary; it's not necessary that you spray the entire lawn. This will also save your product and reduces waste."
Product DrawbacksSpot treatments of Celsius WG Herbicide ,to St. Augustine grass at turf temperatures of 90 degrees or higher may cause temporary growth regulation. This product can also affect some ornamentals and is not recommended for use near the roots or newly plants
Target PestsAmerican Burnweed, Annual Lespedeza, Asiatic Hawksbeard, Barnyardgrass, Birdseye Pearlwort, Black Medic, Black Nighshade, Blackseed Plantain, Bracted Plantain, Broadleaf Plantain, Broadleaf signalgrass, Browntop Millet, Buckhorn Plantain, California Burclover, Canada Thistle, Canada Toadflax, Carolina Dicondra, Carolina Falsedandelion, Carpetgrass, Catsear Dandelion, Chamberbitter, Common Chickweed, Common Lambsquarter, Common Millet, Common Plantain, Common Purslane, common Ragweed, Common Sunflower, common Vetch, Common Waterhemp, Corn speedwell, Creeping Beggarweed, Creeping Charlie, Creeping Speedwell, Curly Dock, Cutleaf Evening Primrose, Dallisgrass, Dandelion, Dogfennel, Doveweed, Eastern Black Nightshade, Entireleaf Morningglory, Fall Panicum, Field Madder, Field Pepperweed, Field Sandbur, Field Violet, Fireweed, Florida Betony, Florida Pusley, Giant Foxtail, Giant Ragweed, Gophertail Lovegrass, Green Foxtail, Green Kylinga, Ground Ivy, Hairy Bittercress, Hairy Nightshade, Heartwing Sorrel, Heath Aster, Hemp Sesbania, Henbit, Hop Medic, Horse Purslane, Horseweed, Indian Chickweed Carpetweed, ivyleaf Morningglory, Johnsongrass, Knawel, Lady's Mantle, Lawn Burweed, Mouse-ear Chickweed, Narrowleaf Plantain, Oxeye daisy, Paleseed Plantain, Palmer Amaranth, Parsley Piert, Pennsylvania Smartweed, Pennywort Dollarweed, Pitted Morningglory, Pokeberry, Poorjoe, Prickly Sida, Proso Millet, Prostrate Knotweed, Purple cudweed, Quackgrass, Rabbitfoot Clover, Red Fescue, Red Sorrel, Redroot pigweed, Rescuegrass, Russian thistle, Shattercane, Shepard's purse, Sicklepod, Slender Aster, Spiny sowthistle, Sprawling Horseweed, Stinkgrass, Swinecress, Switchgrass, Tall Fescue, Tansy Mustard, Texas Panicum, Thin Paspalum, Trampweed Facelis, Velvetleaf, Venus Looking glass, Virginia Buttonweed, Virginia Dwarf Dandelion, Western Ragweed, White Clover, White Mustard, White Sweet Clover, Whiteleaf Sage, Wild Buckwheat, Wild Carrot, Wild Garlic, Wild Lettuce, Wild Oat, Wild Onion, Wild Pansey, Yellow Foxtail, Yellow Rocket, and Yellow Woodsorrel.
Application EquipmentBackpack Sprayer, Pump Sprayer
Application MethodsBroadcast Spray, Spot Treatment
Active IngredientThiencarbazone-methyl 8.7%, Iodosulfuron-methyl-sodium 1.9%, and Dicamba 57.4%.
Product TypeHerbicide
FormulationWater Dispersible Granule (WDG)
Application RateFor spot treatments, mix 0.057 to 0.113 oz. (1.6-3.2 g) of Celsius WG Herbicide per gallon of water per 1,000 sq. ft.
Shelf LifeCelsius WG Herbicide can last up to 3 years when stored properly, in a cool dry space.
Yield10 oz. of Celsius WG Herbicide will cover up to 5 acres.
Use SitesOutdoors
Time to KillThe soil activity of Celsius WG Herbicide provides a barrier of control for up to 60 days after the application is made.
Comparable ProductsMonument 75 WG
Incompatible Grass Types St Augustine, Zoysiagrass
EPA Registration #432-1507
4.7/5
Based on 20 reviews
  • 80%(16)
  • 10%(2)
  • 5%(1)
  • 5%(1)
  • 0%(0)
Pro weed killer
Great product and works well
100%
9/8/22
Billy Bass
Verified Buyer
Great ST. AUGUSTINE GRASS weed killer
Use it to kill Chamberbitter in St. Augustine grass in 90+ temperatures will out harm to lawn
100%
3/15/22
Troy Conwell
Verified Buyer
I found it to be the best for my st. Augustine grass
It was the only thing I found that killed my creeping beggar weed. Follow the directions. It doesn’t take much. It also takes a few weeks but be patient. It will work.
100%
11/27/21
Carol Erwin
Verified Buyer
Great product!!!
Have used this product many times. Great product.
And will order again.
100%
9/7/21
brenda neill
Verified Buyer
This website was very helpful providing the details needed before making a purchase. The product (Celsius) worked great getting rid of the Virginia Button Weed and didn't hurt the St. Augustine grass.
100%
8/26/21
Paul Palmer
Verified Buyer
The product eradicated the chamberbitter weed in my bermuda yard and next spring I will my lawn care tech put down a pre-emergent . Thanks
100%
7/23/21
Shawne Bailey
Verified Buyer
Kills Dallisgrass Dead!
You have to trust the process with this, Celsius is a slow killer but it will annihilate Dallisgrass to its roots! My Bermuda lawn was infested with Dallisgrass to the point you couldn't see any Bermuda at all. Many YouTubers suggested MSMA but this site suggested Celsius for residential use.

I used it with Methylated Seed Oil and made sure i sprayed the weeds until wet. I saw no results until Day 3, which was when the Dallisgrass blade tips started turning red. Each day afterwards, a larger percentage of the blades turned red - and then turned a darker burgundy-red - and then started yellowing at the roots as well. There were small patches of Dallisgrass that seemed unaffected until Day 7. But by day 8, every bit of the Dallisgrass took a drastic change for the worse. What was once red was now turning brown, what was once yellow was now turning black - and what was once unaffected in appearance, was now dying fast. A second application after 10-14 days is suggested but, right now it's Day 9 and it doesn't look like the Dallisgrass will make it. I'm gonna put down some DITHIOPYR pre-emergent after it's all completely dead and start pushing my Bermuda Grass to take back over. Again, you have to be patient and let it run its course - cuz Celsius is the Usain Bolt of the 4 x 400 meter relay!
40%
7/8/21
Dan Edney
Verified Buyer
Killing Grass Along with Weeds
I am trying to get on top of chamber bitter weeds in my yard. When I received the Celcius WG I read the label instructions, mixed accordingly and spot applied to any chamber bitter I saw. After 4-5 days the weeds are fading, but the St. Augustine grass also is dying where I sprayed, so this turned out to be an expensive fail for me.
100%
6/26/21
Brian Southard
Verified Buyer
This is a great alternative to msma since we are no longer able to use that for summer weed's. I've had very good results with the Celsius for control of summer weed's in the south
100%
6/23/21
Gary Ottinger
Verified Buyer
Great product for hard to control weeds
Great product, especially for controlling the pesky Virginia Buttonweed in my Bermudagrass lawn!! I’ve tried other products but Celsius has been the most effective in my experience.
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More Information
Restricted Use No
Shipping Restrictions AK, CA, CT, HI, NY, VT, WA
Availability Online
Signal Word CAUTION
Keith's Pro Tip "Apply Celsius WG Herbicide only to the areas that are necessary; it's not necessary that you spray the entire lawn. This will also save your product and reduces waste."
Target Pests Multi American_Burnweed, Annual Lespedeza, Asiatic Hawksbeard, Barnyardgrass, Birdseye Pearlswort, Black Medic, Black Nightshade, Blackseed_Plantain, Bracted Plantain, Broadleaf Plantain, Broadleaf Signalgrass, Browntop_Millet, Buckhorn Plantain, California Burclover, Canada Thistle, Canada_Toadflax, Carolina False Dandelion, Carolina_Dichondra, Carpetgrass, Carpetweed, Catsear Dandelion, Chamberbitter, Common Chickweed, Common Lambsquarters, Common Millet, Common Plantain, Common Purslane, Common Ragweed, Common Sunflower, Common Vetch, Common Waterhemp, Corn Speedwell, Creeping Beggarweed, Creeping Charlie, Creeping Speedwell, Curly Dock, Cutleaf Evening Primrose, Dallisgrass, Dandelion, Dollarweed, Doveweed, Eastern Black Nightshade, Entireleaf Morningglory, Fall Panicum, Field Madder, Field Pepperweed, Field Sandbur, Field Violet, Fireweed, Florida Betony, Florida Pusley, Giant Foxtail, Giant Ragweed, Gophertail Lovergrass, Green Foxtail, Green Kylinga, Hairy Bittercress, Hairy Nightshade, Heartwing Sorrel, Heath_Aster, Hemp Sesbania, Henbit, Hop Medic, Horse Purslane, Horseweed/Marestail, Indian Chickweed, Ivyleaf Morningglory, Johnsongrass, Knawel, Ladys Mantle, Lawn Burweed, Mouseear Chickweed, Narrowleaf Plantain, Oxeye Daisy, Paleseed Plantain, Palmer Amaranth, Parsley Piert, Pennsylvania Smartweed, Pennywort, Pitted Morningglory, Pokeberry, Poorjoe, Prickly Sida, Proso Millet, Prostrate_Knotweed, Purple Cudweed, Quackgrass, Rabbitfoot Clover, Red Fescue, Red Sorrel, Redroot Pigweed, Rescuegrass, Russian Pigweed, Shattercane, Shepherdspurse, Sicklepod, Slender Aster, Spiny Sowthistle, Sprawling Horseweed, Stinkgrass, Swinecress, Switchgrass, Tall Fescue, Tansy Mustard, Texas Panicum, Thin Paspalum, Trampweed Facelis, Velvetleaf, Venus Looking Glass, Virginia Buttonweed, Virginia Dwarf Dandelion, Western Ragweed, White Clover, White Mustard, White Sweet Clover, Whiteleaf_Sage, Wild Buckwheat, Wild Carrot, Wild Garlic, Wild Lettuce, Wild Oats, Wild Onion, Wild Pansey, Yellow Foxtail, Yellow Rocket, Yellow_Woodsorrel, Dogfennel, Ground Ivy
Time to Kill The soil activity of Celsius WG Herbicide provides a barrier of control for up to 60 days after the application is made.
Chemical Type Herbicide
Formulation Water Dispersible Granule (WDG)
Application Methods Broadcast Spray, Spot Treatment
Product Drawbacks Spot treatments of Celsius WG Herbicide ,to St. Augustine grass at turf temperatures of 90 degrees or higher may cause temporary growth regulation. This product can also affect some ornamentals and is not recommended for use near the roots or newly plants
Active Ingredient Thiencarbazone-methyl 8.7%, Iodosulfuron-methyl-sodium 1.9%, and Dicamba 57.4%.
Application Equipment Backpack Sprayer, Pump Sprayer
Mix Rate For spot treatments, mix 0.057 to 0.113 oz. (1.6-3.2 g) of Celsius WG Herbicide per gallon of water per 1,000 sq. ft.
Low Use Rate 0.057 oz./1,000 sq. ft.
High Use Rate 0.16 oz./1,000 sq. ft.
Use Sites Outdoors
Yield 10 oz. of Celsius WG Herbicide will cover up to 5 acres.
EPA Registration No. 432-1507
Shelf Life Celsius WG Herbicide can last up to 3 years when stored properly, in a cool dry space.
Comparable Products Monument 75 WG
Children or pets? No
Property Characteristics None
Questions and Answers
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  1. Q:Can you get this shipped to California? What are alternative products for weeds in Bermuda grass, if not? Thank you.
    4/20/24
  2. Q:Does this kill dallis grass on centipede grass
    4/17/24
    A:You can control dallisgrass in centipedegrass with Celsius WG Herbicide. Dallisgrass is best controlled with two spot applications. Be sure to only make this second application when 2-4 weeks have passed after first spraying.

    Amanda

    4/17/24
  3. Q:How much celsius will it take to mix 80 gallon sprayer ?
    11/7/23
    A:6.8 ounces as 0.084 ounce per gallon x 80 gallons

    Mark Douglass

    11/7/23
    Certified Buyer
  4. Q:Once applied and sandburs turn brown are the sanburs dead and can I mow them down without fear of them regrowing?
    10/29/23
    A:You should delay mowing 72hrs after application and do not bag the lawn as most chemicals will continue to work for 30 days. Apply Dimension pre emergent in late Winter to prevent any new burs from germinating

    Jonathan Corrigan

    10/29/23
    Certified Buyer
  5. Q:Is this product safe to put on grass where small dogs are?
    10/9/23
    A:Siggest you check.with the mfg

    Richard Watson

    10/10/23
    Certified Buyer
  6. Q:Living near Dallas, I have Bermuda in front / back which gets the sun, and St. Augustine on the sides with limited sun. Is this effective in both types? Or need different dosages?
    7/10/23
    A:Fahrenheit Herbicide and Celsius WG Herbicide will not kill Bermudagrass or St. Augustinegrass, but is labeled to treat weeds that emerge on lawns with these grass types. To get rid of bermudagrass, check out our DIY guide. https://www.solutionsstores.com/bermudagrass-control

    Amanda Chavez

    7/10/23
    Certified Buyer
  7. Q:Can this be used on Zoysia grass in Texas during June in 90 degree weather?
    6/8/23
    A:Celsius WG Herbicide can be used on zoysiagrass during June as long as it's healthy and established and not stressed from the heat or other conditions.

    Amanda Chavez

    6/9/23
    Certified Buyer
  8. Q:Can I use celcius wg to kill diachondra around a small drake elm tree (about 7 ft tall)?
    6/7/23
    A:Celsius WG Herbicide is labeled to kill Dichondra in warm-seasoned turfgrass. This product is toxic to other non-target plants like trees so its not recommended to spray around it.

    Amanda Chavez

    6/7/23
    Certified Buyer
  9. Q:I live in the DFW Texas area, when should I apply Celsius to control Dassisgrass?
    5/24/23
  10. Q:Will Celsius kill marsh parsley?
    4/14/23
    A:Celsius WG Herbicide will only control parsley piert, but not marsh parsley. We recommend using MSM Turf Herbicide (Manor), which is labeled to control wild celery, another name for marsh parsley. https://www.solutionsstores.com/msm-turf-herbicide-manor

    Amanda Chavez

    4/17/23
    Certified Buyer
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