Killzall Weed and Grass Killer - 41% Glyphosate

4.5 out of 5 stars 203 Reviews | 161 Q&A

Killzall Weed and Grass Killer - 41% Glyphosate
Price/Ea.
$22.98

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Average Rating

4.5 out of 5 stars Rating: 4.5

203 Reviews | 161 Q&A

Product Overview

Hi-Yield Super Concentrate Killzall Weed and Grass Killer is a post-emergent, non-selective herbicide with a multiple-use formulation. Using a double-surfactant formulation of 41% Glyphosate, Super Concentrate Killzall works quickly to eliminate systemically broadleaf or grassy weeds, clear turf for lawn renovation, prevent stump regrowth, and clean areas near fences, paths, patios, driveways, and buildings. Killzall should be applied to actively growing weeds, preferably before the seed heads form. Killzall Super Concentrate control annual and perennial weeds, brush, and grasses such as annual bluegrass, barnyardgress, clover, foxtail, goosegrass, knotweed, alder, Bermudagrass, blackberries, common ragweed, dandelion, kudzu, honeysuckle, milkweed, pampasgrass, zoysia and dozens more - even hard to kill types. While Killzall will control any plant you treat, it will not transfer through soil to neighboring plants. Killzall is rain fast in 24 hours and kills weeds and grasses down to the root.

Features and Specs

Active Ingredient Glyphosate-isopropylammonium 41%
Target pests Annuals:Annual Ryegrass, Annual Bluegrass, Barnyardgrass, Beggarweed, Black Medic, Blue Medic, Chickweed, Clover, Common Plantain, Common Ragweed, Crabgrass, False Dandelion, Foxtail, Garden Spurge, Goosegrass, Henbit, Pigweed, Purslane, Spurges, Yellow Nutgrass and many other Annual Grasses and Weeds

Perennials: Alder, Bahiagrass, Barnyardgrass, Bentgrass, Bermudagrass, Blackberries, Bluegrass, Bull Thistle, Cattail, Centipedegrass, Dandelion, Fescue Species, Hairy Crabgrass, Kentucky Bluegrass, Kikuyugrass, Kudzu, Milkweed, Chickweed, Nutsedge, Oak Species, Orchardgrass, Perennial Ryegrass, Plantain, Poison Oak, Poison Ivy, St. Augustinegrass, Sumac, Tall Fescue, Thistle, Wild Carrot, Yellow Nutgrass, Zoysia and others

Woody Brush & Trees: Alder, Oak, Sweetgum, Tan Oak

* See label for complete list
For use in Lawns, Fence Lines, Driveways, Sidewalks, Brick Walkways, Gravel Walkways, Trees or Shrub areas, around Buildings, Edging Landscapes, areas being prepared for vegetable or flower gardens, to prevent stump regrowth
Application 2.5 oz. per gallon of water (1 gallon treats approx. 300 sq. ft.)
* See label for complete application instructions
Pet safe Yes, when used as directed on label
* Allow solution to dry completely before allowing children or pets to enter the area
Formulation Professional Product
NOT FOR SALE TO AK
Coverage Area 1 pint covers up to 3,200 sq. ft.
Shipping Weight 1.35 lbs
Manufacturer VPG (Mfg. Number: 33691)
UPC 732221336919
EPA Registration 7401-451

Details

Hi-Yield Super Concentrate Killzall Weed and Grass Killer is a post-emergent, non-selective herbicide with a multiple-use formulation. Using a double-surfactant formulation of 41% Glyphosate, Super Concentrate Killzall works quickly to eliminate systemically broadleaf or grassy weeds, clear turf for lawn renovation, prevent stump regrowth, and clean areas near fences, paths, patios, driveways, and buildings. Killzall should be applied to actively growing weeds, preferably before the seed heads form. Killzall Super Concentrate control annual and perennial weeds, brush, and grasses such as annual bluegrass, barnyardgress, clover, foxtail, goosegrass, knotweed, alder, Bermudagrass, blackberries, common ragweed, dandelion, kudzu, honeysuckle, milkweed, pampasgrass, zoysia and dozens more - even hard to kill types. While Killzall will control any plant you treat, it will not transfer through soil to neighboring plants. Killzall is rain fast in 24 hours and kills weeds and grasses down to the root.

Application should be made using a pump sprayer, hand sprayer, or hose-end sprayer. For best results, apply on warm sunny days when temperature is above 60 degrees F and rainfall is not expected within 24 hours. Hi-Yield Super Concentrate Killzall can be used for spot treatments or large jobs like lawn renovation or vegetable garden preparation.

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  • 4 of 5 Stars

    Killzall

    By Gerald on 06/10/2011

    I have been using this product for a few years. It works slowly (4-6 days) to really see benefit but sprayed area lasts pretty well. The best thing is that you need only use 5 tablespoons to gal of water. Will kill everything.

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    252 of 262 people found this review helpful

  • 5 of 5 Stars

    KillzAll

    By Jeff on 04/27/2013

    We have been using this product for several years and are very satisfied with the results. Here is a helpful hint I learned from a farmer. Use any liquid dish soap. Put a couple of squirts in the sprayer after you have filled it and added the KillzAll, otherwise you will have a sudsy mess. This will help the weed killer stay on the weeds longer and especially helps on weeds with a waxy coating.

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    212 of 213 people found this review helpful

  • 5 of 5 Stars

    Killzall weed and grass

    By Frank on 05/06/2011

    A little slow in killing but most effective. Took about five days to kill all in the area that was sprayed. I did not see any affects of runoff from rain to surrounding plants or shrubs.

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    207 of 212 people found this review helpful

  • 5 of 5 Stars

    Killzall Weed and Grass Killer

    By John on 03/07/2012

    I've been using this product now for several years. If you want to kill something green, this is the product. Just follow the directions and be very careful that you only put it on what you are trying to kill. It has helped me in removing vines/ivy that had been growing for over 15 years; from my home as well as choking 4 of my Oak trees. Since it is not available at any local stores, I was fortunate in finding DoMyOwnPestControl.com. A great company with super prices and fast shipping. And no, I'm not an employee. I do feel that good companies and products should get the cudos they deserve. Both apply here.

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    199 of 202 people found this review helpful

  • 5 of 5 Stars

    ozz

    By Gerald on 07/14/2011

    cheap price but good control of weeds and grass total kill but takes a little time to take efect about 5 days.I think it works better then roundup at half the price.

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    149 of 158 people found this review helpful

See all 203 customer reviews

Questions & Answers

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Q
Safe for dog to eat the grass sprayed with Killzall Weed and Grass Killer?

How long after it is sprayed is it safe for a dog who eats grass is safe my husband didn't know about how it would affect our dogs

A

Once Killzall Weed and Grass Killer - 41% Glyphosate has dried it is safe for pets to resume normal activities, typically after 4-6 hours. The product will not reactivate once it has completely dried after an application 

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3 of 3 people found this answer helpful

Q
Can Killzall Weed and Grass Killer - 41% Glyphosate be used in pastures that have sandbur? If not, what can I use to get rid of sandbur without injuring my hay crop?
A

Killzall Weed and Grass Killer - 41% Glyphosate cannot be used in pastures to control sandbur. 
Pastora Herbicide is labeled to control and suppress Sandbur as well as other broadleaf weeds. Please review the Sandbur Section on page 6 of the product label for detailed information on treating Sandbur with Pastora. 

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Q
Can Killzall Weed and Grass Killer - 41% Glyphosate be used to kill weeds along a pasture fence line where horses graze?

Needing to kill of growth on fence line (pasture fence line) but do not want to sicken or kill my horse . I know from common sense it's probably not a good idea to use this because of the chance of digestion.

A

Killzall Weed and Grass Killer - 41% Glyphosate should not be used in pastures or where there are grazing animals. 

Garlon 4 Ultra Herbicide could be an alternative product for killing annual and perennial weeds along with woody plants along fence lines to pastures where there are grazing animals. There are no grazing restrictions.

View the product label for additional information. 

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Q
If Killzall Weed and Grass Killer - 41% Glyphosate got in my gloves and contacted a cut on my finger, is this dangerous?
A

As directed by the label, rinse skin immediately with plenty of water for 15-20 minutes. If you need further medical assistance, please call a poison control center or doctor for treatment advice. 

View the SDS Sheet for more chemical information. 

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Q
Will Killzall Weed and Grass Killer - 41% Glyphosate kill Poison Oak and California Wild Grape?
A

Killzall Weed and Grass Killer - 41% Glyphosate is labeled for poison oak but not directly labeled for the California Wild Grape.

The active ingredient Glyphosate is a non selective herbicide known to be effective for California Wild Grape but will also kill any surrounding vegetation.

For California Wild Grape, fall applications are best when the vines are preparing for winter dormancy and actively transporting nutrients back into their roots. Immediately after cutting the vines, paint the freshly cut surface with the herbicide undiluted. 

View the product label for more information. 

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Q
Unused killzall left in my backpack sprayer has a grey floating growth after a week or two.

Anything I can do to prevent other than empty sprayer between uses?

A
Any diluted solution should be used within 24 hours of mixing for the most effective control and to prevent growth in sprayer as well as prolonging the life of the sprayer. Triple rinse after each use.

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Q
Can Killzall Weed and Grass Killer - 41% Glyphosate be used around growing tomatoes and pepper plants?
A

You will need to wait at least 2 weeks to plant any type of seed after using Killzall Weed and Grass Killer - 41% Glyphosate

 

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Q
Does Killzall Weed and Grass Killer - 41% Glyphosate kill bamboo?
A

Bamboo is extremely stubborn, so it can take several steps to remove it completely. You can use Killzall Weed and Grass Killer - 41% Glyphosate  at the highest listed usage rate to help eliminate bamboo. You will be required to cut the bamboo down to a short stump and then apply the Killzall. It can take several applications to achieve the desired results. While there is nothing that will prevent it coming back you would need to treat it again if it does.
 

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Q
Can I re-seed after using this product?

I plan to kill my existing fescue and re-seed in about a month: How long do I need to wait to re-seed my lawn after applying this product?

A
You will need to wait at least 2 weeks to plant any type of seed or sod after using Killzall Weed and Grass Killer - 41% Glyphosate.

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Q
Can Killzall Weed and Grass Killer - 41% Glyphosate be used with a hose end sprayer to kill my entire lawn infested with weeds? If so, how much should I use to cover 3000 sq ft?
A

According to the manufacturer's label, for best results use 2.5 fl. oz. (5 Tbs.) of Killzall Weed and Grass Killer - 41% Glyphosate per 1 gallon of water to treat approximately 300 sq. ft. of area.  

For covering 3,000 sq. ft. of area, you would need 10 times 2.5 fl. oz., which would be 25 fl. oz. 

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Q
Does this product have a shelf life after a bottle has been opened?

Its been 24 hours since I sprayed it on weeds and they seem unaffected so far. The bottle is at least a year old and has been opened and used last summer. Its been stored in the back of my truck out of sunlight but likely has gotten freezing cold in the winter and quite hot in the summer.

A
The Killzall Weed and Grass Killer - 41% Glyphosate does not have an expiration date but has a shelf life of 3-5 years as long as it is stored properly in temperatures ranging from 40-80 degrees Fahrenheit.

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Q
How many acres will the Killzall Weed and Grass Killer - 41% Glyphosate 1 Gallon size cover for weeds?
A

The application rate for Killzall Weed and Grass Killer - 41% Glyphosate is 1.5 to 2.5 fl oz per gallon of water per 300 sq ft.

The 16 oz pint will cover 1,920 sq ft to 3,200 sq ft and the Gallon (128 fl oz) is going cover 15,360 sq ft (0.35 acre) to 25,600 sq ft (0.58 acre) 

Please view the product label for recommended rates and more information. 

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Q
How many ounces of Hi-Yield Killzall do you use in 1 gallon of water?
A

Killzall Weed and Grass Killer - 41% Glyphosate is applied at 2.5 oz per gallon of water (1 gallon treats approx. 300 sq. ft.)

Please view the full product label for more information. 

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Q
After using Killzall Weed and Grass Killer, can the dead plants be tilled into the soil for a vegetable garden?
A

We would not recommend tilling or incorporating any dead vegetation that has been treated with Killzall Weed and Grass Killer. Any dead vegetation should be manually removed 2 weeks following the application and prior to planting a vegetable garden. 

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Q
Will Killzall Weed and Grass Killer - 41% Glyphosate kill kudzu vines on trees and at the base of vines at ground level?

Do you have a more effective product for Kutzu vine??

A

Killzall Weed and Grass Killer - 41% Glyphosate is labeled for kudzu at the rate of 2.5 fl oz per gallon of water. A second follow up application may be required for harder to kill vines.

For kudzu vines that are growing up a pole, fence or mature tree trunk, cut vine to a height of 3 to 4 feet and spray thoroughly covering remaining vine. If vine is climbing a shrub or immature (green) tree trunk, to avoid damage to these plants, cut vine at base and treat as directed for stumps or spray regrowth. If spraying regrowth, shield shrub or green trunk from drift with a sheet of plastic or cardboard.

Please review the full product label for more information. s. 

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