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Weed and Grass Killer 64 oz. Concentrate Plus

  • Provides fast-acting visible results in just 12 hours
  • Ready-to-use 20-gallon spray covers up to 6300 sq ft.
  • Tank sprayer offers easy application for larger areas
  • See More Details

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Product Overview

The economical, effective way to handle larger areas, Roundup Concentrates are simple to prepare and use, and they deliver all the weed-control power you expect from the Roundup brand. Roundup Weed and Grass Killer Concentrate Plus is perfect for use around flowers, shrubs and trees, on patios, walkways, driveways, gravel areas and mulch beds and along fences, edging and foundations (not for use around existing edibles). It is also effective on large areas such as lawn replacements or garden plot preparation. For best results, add 6 fl. oz. of concentrate to 1 Gal. of water in a Roundup Brand Premium Sprayer. The formula is rainproof in 30 minutes, and with FastAct Technology, you will see visible results in 12 hours.
  • Kills the toughest weeds and grasses to the root, guaranteed, consumer guarantee: if for any reason you are not satisfied after using this product, simply send us original proof of purchase and we will replace the product or refund the purchase price
  • For use in a tank sprayer
  • For use around flowers, shrubs and trees on patios, walkways, driveways, gravel areas and mulch beds; along fences, edging and foundations; as well as large areas such as lawn replacements or garden plot preparation not for use around existing edibles
  • Rainproof in 30 minutes
  • Visible results in 12 hours with fastact technology



Info & Guides

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BrandRoundupRoundupRoundupRoundup
NameMax Control 365 Continuous Spray WandWeed and Grass Killer 64 oz. Concentrate Plus32 oz. Max Control 365 Concentrate0.5 Gal. Weed and Grass Killer Super Concentrate
Price
Ratings
(2840)
(2436)
(1673)
(461)
Area of UseDriveway,PatioLawnDriveway,PatioDriveway,Garden,Patio
Concentrated or Ready to UseReady to useReady to useConcentratedReady to use
Application TypeSpraySpraySpraySpray
Weed TypeAnnual Bluegrass,Annual Ryegrass,Bahia Grass,Beggarweed,Bermuda Grass,Bitter Cress,Broadleaf Signal Grass,Buffalograss,Carpetgrass,Chicory,Common Chickweed,Dandelion,False Dandelion,Green Kyllinga,Henbit,Horseweed,Indian Chickweed,Japanese Clover,Knapweed,Lambsquarters,Love Vine,Moneywort,Monkey Grass,Mouse-Ear Chickweed,Orchardgrass,Pennywort,Spurge,Tall Fescue,Wheatgrass,Wild Garlic,Zoysia GrassAnnual Bluegrass,Annual Ryegrass,Bahia Grass,Barnyardgrass,Beggarweed,Bermuda Grass,Black Medic,Broadleaf Plantain,Buckhorn Plantain,Bur Clover,Canada Thistle,Cattails,Cocklebur,Crabgrass,Creeping Charlie,Dallisgrass,Dandelion,Dog Fennel,False Dandelion,Field Bindweed,Florida Pusley,Foxtails,Goosegrass,Henbit,Horseweed,Kikuyu Grass,Knapweed,Knotweed,Kudzu,Lambsquarters,Mallow,Marestail,Milkweed,Mouse-Ear Chickweed,Narrowleaf Plantain,Nimblewill,Nutsedge,Orchardgrass,Oxalis,Pennywort,Poison Hemlock,Poison Ivy,Poison Oak,Prostrate Spurge,Quackgrass,Ragweed,Red Clover,Sandspur,Shepards Purse,Sow Thistle,Spotted Spurge,Tall Fescue,Tansy,Torpedograss,Trumpet Creeper,Virginia Creeper,White Dutch Clover,Wild Morning Glory,Wild Rose,Yellow Nutgrass,Zoysia GrassAir Potato Vine (Dioscorea Bulbifera),Alfalfa,Annual Bluegrass,Annual Ryegrass,Bahia Grass,Beggarweed,Bermuda Grass,Common Chickweed,Dandelion,Dwarf Dandelion,Goutweed,Henbit,Indian Chickweed,Japanese Clover,Lambsquarters,Lespedeza,Monkey Grass,Mouse-Ear Chickweed,Narrowleaf Plantain,Orchardgrass,Pennywort,Potato Vine (Dioscorea Bulbifera),Quackgrass,Ragweed,Red Henbit,Sedge,Spurge,Tall Fescue,Wheatgrass,Wild Garlic,Zoysia GrassAir Potato Vine (Dioscorea Bulbifera),Ajuga Bugle Weed Carpet Bugle,Alfalfa,Annual Bluegrass,Annual Ryegrass,Asiatic Jasmine,Bahia Grass,Beggarweed,Bermuda Buttercup,Bermuda Grass,Bindweed,Bitter Cress,Bittersweet Nightshade,Black Clover,Blue Violet,Broadleaf Signal Grass,Broom Sedge,Buffalograss,Bulbous Buttercup,Bur Clover,Burweed,Card Thistle,Carpetgrass,Celandine,Centipede Grass,Chamberbitter,Cheatgrass,Chicory,Cinquefoil,Coast Dandelion,Cocklebur,Common Burdock,Common Chickweed,Creeping Bellflower,Crown Vetch,Dandelion,Day Flower,Dead Nettle,Dog Fennel,Dwarf Dandelion,English Ivy,English Lawn Daisy,False Dandelion,Field Bindweed,Florida Betony,Florida Pusley,Garlic Mustard,Giant Hogweed,Goatshead,Goutweed,Green Kyllinga,Greenbriar,Hawkweed,Heal-All,Henbit,Horseweed,Indian Chickweed,Ironweed,Japanese Clover,Japanese Knotweed,Kikuyu Grass,Knapweed,Knotweed,Kudzu,Kyllinga,Lambsquarters,Lespedeza,Love Vine,Mallow,Marestail,Matchweed,Moneywort,Monkey Grass,Moss,Moss, Liverworts, and Algae,Mouse-Ear Chickweed,Mugwort,Mullein,Multiflora Rose,Mustard,Narrowleaf Plantain,Nettle Hedge,Orchardgrass,Pachysandra,Pennywort,Periwinkle,Phragmites,Poa Trivialis,Poison Hemlock,Poison Ivy,Poison Oak,Poison Sumac,Pokeweed,Potato Vine (Dioscorea Bulbifera),Prostrate Spurge,Puncture Vine,Quackgrass,Queen Annes Lace,Ragweed,Red Henbit,Red Sorrel,Sand Brier,Sandbur,Sandspur,Sedge,Sedum,Seedheads in Lawn,Smartweed,Snow On The Mountain,Sourgrass,Sow Thistle,Speedwell,Spurge,Spurweed,St. Johns Wort,Tall Buttercup,Tall Fescue,Tansy,Three Leaved Ivy,Torpedograss,Tree Seedling,Trumpet Creeper,Tumbleweed,Virginia Buttonweed,Virginia Creeper,Wheatgrass,Wild Carrot,Wild Garlic,Wild Morning Glory,Wild Onion,Wild Violet,Winter Creeper,Wisteria,Wood Sorrel,Zoysia Grass
Extended ControlExtended ControlNon-Extended ControlExtended ControlNon-Extended Control
OrganicNon-OrganicNon-OrganicNon-OrganicNon-Organic
Emergent TypePre and Post EmergentPost-EmergentPost-EmergentPost-Emergent
View ProductView ProductView ProductView Product

Specifications

Dimensions

Container Size (oz.)
64
Coverage Area (sq. ft)
6300
Product Depth (in.)
3.5
Product Height (in.)
11.75
Product Width (in.)
6.5

Details

Application Method
Tank Sprayer
Application Type
Spray
Area of Use
Lawn
Compatible Grass Type
All Purpose
Concentrated or Ready to Use
Ready to use
Contact or systemic
Contact and Systemic
Container type
Bottle
Emergent Type
Post-Emergent
Equivalent ready to use amount
20 gal at the 3 oz / gal rate
Extended Control
Non-Extended Control
Features
Kills Common Weeds
Form
Liquid
Indoor/Outdoor
Outdoor
Organic
Non-Organic
Pack Size
8
Primary Active Ingredient
Glyphosate
Returnable
90-Day
Safe for Edibles
No
Spray Application Type
Concentrate
Weed Type
Annual Bluegrass,Annual Ryegrass,Bahia Grass,Barnyardgrass,Beggarweed,Bermuda Grass,Black Medic,Broadleaf Plantain,Buckhorn Plantain,Bur Clover,Canada Thistle,Cattails,Cocklebur,Crabgrass,Creeping Charlie,Dallisgrass,Dandelion,Dog Fennel,False Dandelion,Field Bindweed,Florida Pusley,Foxtails,Goosegrass,Henbit,Horseweed,Kikuyu Grass,Knapweed,Knotweed,Kudzu,Lambsquarters,Mallow,Marestail,Milkweed,Mouse-Ear Chickweed,Narrowleaf Plantain,Nimblewill,Nutsedge,Orchardgrass,Oxalis,Pennywort,Poison Hemlock,Poison Ivy,Poison Oak,Prostrate Spurge,Quackgrass,Ragweed,Red Clover,Sandspur,Shepards Purse,Sow Thistle,Spotted Spurge,Tall Fescue,Tansy,Torpedograss,Trumpet Creeper,Virginia Creeper,White Dutch Clover,Wild Morning Glory,Wild Rose,Yellow Nutgrass,Zoysia Grass

Questions & Answers

65Questions49Answers

Will this product kill the suckers from a crepe myrtle?

Asked by TJ302 April 20, 2021
5
Answers

yes after a few applications this will work you might be better off just to use a vegetation killer .

Will this work on stone covered yard?

Asked by babs April 14, 2021
5
Answers

YES

How long can this Roundup Concentrate be stored and still be affective after opening ?

Asked by Sus53 April 9, 2021
4
Answers

Mine has lasted a couple years but they won't tell you that they want to sell you more of their product. I usually stock up when it goes on sale .I use alot because I maintain a few houses.

How long will this product keep grass and weeds dead?

Asked by David February 20, 2021
3
Answers

David, thank you for your interest in 16 oz. Concentrate Plus Weed and Grass Killer by Roundup. This product works only on actively growing green plants there is no residual it only kills what is green and growing at time of application. If weeds are not completely killed within 4 weeks repeat application. If doing a lawn renovation reapplication can be made after 7 days after the 1st if there are still green patches of grass in the renovation area.

Need a weed killer that kills weeds up to 6 months

Asked by Sissy February 17, 2021
6
Answers

Hi Sissy, Sounds like you may want to checkout their alternative product, RoundUp Max Control 365 product. Alternatively, you might want to checkout Ortho GroundClear, which kills and prevents weeds/vegetation for up to a full year.

Is this the same product for use on Roundup Ready seeds?

Asked by Rusty February 6, 2021
2
Answers

This product is registered for killing weeds in an existing vegetable garden. If you get this product on any annual fruit or vegetable plants do not eat the produce. Destroy plant and either replant in 7 days or wait until next year. May be used to control weeds around the base of fruit and nut trees and grapevines Spray when the air is still and do not get any spray on green plant parts Will not move through soil so will not affect the roots. When used around Fruit or nut trees cranberries or grapevines wait 17 days before harvesting

Will this weed killer kill sticker burrs?

Asked by Lp February 4, 2021
5
Answers

Yes it will, but you have to remember that sticker Burrs are particularly tenacious plants. Roundup only has an effect on the Green Leaves of growing plants. That's why farmers can apply at right along with seeds in their field. The problem with sticker Burrs is that although it will kill the growing surface plants, there will be many other seed pods dormant on the ground ready for next season. They won't be immediately affected by the Roundup because of their hard outer shells. You have to be ready for them to emerge next year with their green leaves exposed so the liquid Roundup can penetrate. It will take at least a couple years of repeated use to get those SOB's.

What is the mix of concentrate to water?

Asked by Jerry January 13, 2021
10
Answers

6oz per gallon.

Which round up to kill 2 stumps and roots

Asked by Clark October 3, 2020
4
Answers

It will kill them.

How much Roundup Concentrate plus do you add to a gallon of water?

Asked by Frances September 19, 2020
5
Answers

I always follow the direction given on the package and it works.

Weed and Grass Killer 64 oz. Concentrate Plus - page 2

Customer Reviews

  • 4.2
    out of 2,436 reviews
  • 81% recommend this product
Filter by:
Showing 1-10 of 2,436 reviews
Works fast but doesn't finish the job.
I've been using a generic, Farm Works, for years. Problem was it took days to show signs of dying but, after about a week the weeds died & shriveled up completely. The Roundup shows signs of killing within a day but, even after a week there was still fresh green roots. I had to reapply today because they were still alive & new weeds were coming up. For the high cost of this product, it's not worth the money. Maybe if you've got tiny, spotty weeds it's ok but, if you have a lot of heavy growth it'll take several applications. I'm going back to them generic brand. No
by PeterB
Response from Roundup TeamFeb 17, 2021
We hate to hear that you did not enjoy your experience with Roundup Weed and Grass Killer Concentrate Plus. Visible results occur within 24-48 hours after application, with a complete kill in 4 weeks. A lower dilution rate (3oz per gallon) will not be as effective as the higher dilution rate (6 oz.), especially on perennial weeds. Apply when daytime temperatures are consistently between 60 - 85 degrees F. We want you to be confident in our products. For this reason, we offer a product guarantee to our consumers. At your earliest convenience, please call 877-220-3089 for assistance. When calling, please refer to this review. roundup
Excellent product!
I've used this product for several years and it always works as advertised. I use a plastic 2 gallon sprayer with an attached wand. I always put water in the sprayer before adding the concentrate. The red measuring cup is handy and clips onto the bottle. I spray the grass on my driveway which is both gravel and concrete, Making sure it is sunny and at least 70 degrees, with NO wind. After about an hour, I can see the leaves of the weeds and grass wilting. They are completely dead in a couple of days. No grass or weeds show up for several months.
by Brian51
Killed everything in the area as advertised. After clearing bed, topping off with material weed ...
Killed everything in the area as advertised. After clearing bed, topping off with material weed barrier and mulch, weeds are popping up after just 2 weeks!
by dfjlgh
Response from Roundup TeamSep 29, 2020
We apologize that Roundup Weed and Grass Killer Concentrate Plus did not meet your expectations. This product has no residual and will not prevent new weds from germinating. We at Roundup never want you to be unsatisfied and for this reason we offer a product guarantee. At your earliest convenience, please contact us and refer to your review to see what can be done. We can be reached at 877-220-3089. roundup
Instructions in Spanish only
I purchased a bottle of Roundup in central Texas. The labels are in English, but all of the instructions are written in Spanish. No English translations.
by just me
Works really good specialy when you mix Speed Zone weed eater you will kill ivy around your yard ...
Works really good specialy when you mix Speed Zone weed eater you will kill ivy around your yard or home.
by ronp
The area behind my fence was filled with a lot of Japaneses Stilt Grass as well as other weeds. O...
The area behind my fence was filled with a lot of Japaneses Stilt Grass as well as other weeds. One spray and all dead.
by JoeinMD
Sprayed 2 days ago, grass dead in places the mower will not cut. Good product.
Sprayed 2 days ago, grass dead in places the mower will not cut. Good product.
by Enots
1 person found this helpful
Roundup Plus (red - 18% glyphosate) does not work as quickly as it has in the past. It takes at ...
Roundup Plus (red - 18% glyphosate) does not work as quickly as it has in the past. It takes at least 24 hours or more to see results. I use it to kill weed grasses mostly. Other glyphosate products generally take a week or more to show results. If you are not interested in quick results, better to use less expensive products with 41% or more glyphosate.
by grassKutter
Overall a good product, it does what they say it will. Careful when mixing and handling this prod...
Overall a good product, it does what they say it will. Careful when mixing and handling this product. Use a tank applicator and spray only where you want to kill weeds. Do not walk through wet areas you may have just sprayed. As I said a good product and would recommend.....
by BaDaBing
1 person found this helpful
Takes care of anything green super quick. Great for spot treatment too.
Takes care of anything green super quick. Great for spot treatment too.
by andreac
Showing 1-10 of 2,436 reviews