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Model # HG-96623

Store SKU # 587957

40 oz. Weed Stop for Lawns Concentrate Lawn Weed Killer

$828
  • Kills poison ivy, clover, dandelion, and other listed weeds
  • For outdoor use, won't harm lawns when used as directed
  • Treats up to 20,000 sq. ft. with results as fast as 3 hours
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Product Details

person using weed stop concentrate in a pump sprayer

The Value of Concentrates

Ideal for use with a tank sprayer to treat large areas. Must be mixed with water as directed on package.

person using weed stop spray bottle on a dandelion in grass

The Simplicity of Ready-To-Use

Ideal for spot treatment. Handheld bottles available in various sizes and sprayer styles.

person using weed stop hose end bottle on lawn

The Convenience of Ready-To-Spray

Use to treat large areas. Simple hose-end attachment makes application easy; no mixing required.

close up image of weed free lawn

Kills The Weeds, Not The Lawn

Spectracide Weed Stop For Lawns products are selective, meaning they're safe to use on listed lawn types and will only control the weeds listed on the label (when used as directed).

close up yellow dandelion in lawn

Dandelion

This pesky perennial weed can form new plants just from fragments of broken taproots.

close up clover weed with white flower

Clover

This perennial weed grows easily in moist environments and nitrogen-depleted soil.

close up chickweed with white flower

Chickweed

This flowering plant plagues fields in the winter, leaving a mat of branches and stems.

close up of blade of green grass

Where To Use

For use on lawns, including bluegrass, fescue, zoysia, Bermuda and perennial ryegrass.

45 degress Fahrenheit over 90 degrees Fahrenheit

For Best Results

Apply on sunny days when temperature is between 45-90 degrees Fahrenheit to allow for better absorption of the product. Product may damage lawns if applied above 90 degrees Fahrenheit.

yellow dandelion with pappus in grass

Spectracide Weed Stop

Spectracide Weed Stop products kill more than 460 weed types as listed. Find the form that fits your needs!

black clock icon set to 3pm

Fast-Acting Formula

Visible results in 3 hours.

calendar icon with green header

When To Reseed

You can reseed your lawn 3-4 weeks after application. If you've already seeded and want to control weeds, wait until your newly seeded grass is well established (after you've had to mow at least 3 times).

green icon child and dog running

Usage

Once the treated area is dry, people and pets can return to the lawn.

The power is in your hands to keep your landscape in line - unleash it with Spectracide lawn and garden products. Our easy-to-use, fast-acting insect, lawn disease and weed control solutions help you tame lawn and landscape invaders with incredible pest-punishing power. Take command with Spectracide brand. You hold the power. Spectracide Weed Stop For Lawns Concentrate2 controls more than 460 types of weeds as listed - and it won't harm your lawn when used as directed. Use it to treat your lawn, including bluegrass, fescue, Bermuda, perennial ryegrass and zoysia (do not apply to zoysia just emerging from dormancy). ). This formula kills by contact down to the root, with visible results in as little as 3 hours. It controls all types of listed broadleaf weeds, including dandelion, chickweed, clover and yellow nutsedge (see the product label for a complete list). Available as a dilutable concentrate and as a 32 ounce ready-to-spray concentrate with a QuickFlip sprayer that attaches to your garden hose. Apply Spectracide Weed Stop For Lawns Concentrate2 when temperatures are between 45 and 90 degrees. Spray until wet to control weeds. Do not apply when daytime temperatures are above 90 degrees because lawn injury can occur. Read the entire label before using
  • KILLS WEEDS, NOT THE LAWN: Won't harm lawns when used as directed - kills weeds, including yellow nutsedge, down to the root.
  • VISIBLE RESULTS AS FAST AS 3 HOURS: Kills by contact.
  • KILLS 460+ TYPES OF WEEDS: Controls all types of listed broadleaf weeds, including dandelion, chickweed, clover and yellow nutsedge (see the product label for complete weed list).
  • COVERAGE: 40 ounce bottle treats up to 26,666 square feet of St.
  • Augustinegrass, 20,000 square feet of other warm season grasses, or 10,000 square feet of cool season grasses.
  • Return Policy

Additional Resources

From the Manufacturer

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Specifications

Dimensions: H 11.25 in, W 5 in, D 2.71 in

Dimensions

Container Size (oz.)40Coverage Area (sq. ft.)26666 sq ft
Product Depth (in.)2.71 inProduct Height (in.)11.25 in
Product Width (in.)5 in

Details

Application MethodSprayApplication TypeSpray
Area of UseLawnCompatible Grass TypeBent Grass, Bermuda, Bluegrass, Centipede, Dense Shade, Fescue, Rye, St. Augustine (Floratam), Sun and Shade, Tall Fescue, Zoysia
Concentrated or Ready to UseConcentratedContact or systemicContact and Systemic
Emergent TypePost-EmergentEquivalent ready to use amount40
Extended ControlNon-Extended ControlFeaturesControls Broad Leaf, Kills Common Weeds
FormLiquidIndoor/OutdoorOutdoor
OrganicNon-OrganicPack Size1
Primary Active Ingredient2, 4-D, dimethylamine saltReturnable90-Day
Safe ForNot Safe for Kids and PetsSafe for EdiblesNo
Spray Application TypeConcentrateWeed TypeAlfalfa, Beggarweed, Bindweed, Black Medic, Broadleaf Plantain, Bulbous Buttercup, Bull Thistle, Bur Clover, Canada Thistle, Chamberbitter, Chicory, Cinquefoil, Clover, Cocklebur, Common Burdock, Common Chickweed, Dandelion, Dead Nettle, Dichondra, Dog Fennel, Dollarweed Lawn Pennywort, English Lawn Daisy, False Dandelion, Field Bindweed, Florida Betony, Florida Pusley, Garlic Mustard, Hawkweed, Heal-All, Henbit, Horseweed, Knapweed, Knotweed, Kudzu, Lambsquarters, Lespedeza, Mallow, Marestail, Matchweed, Moneywort, Morning Glory, Mouse-Ear Chickweed, Mugwort, Mullein, Narrowleaf Plantain, Oxalis, Pigweed, Plantain, Poison Hemlock, Poison Ivy, Poison Oak, Poison Sumac, Pokeweed, Prostrate Spurge, Puncture Vine, Ragweed, Red Clover, Red Sorrel, Shepards Purse, Speedwell, Spotted Spurge, St. Johns Wort, Thistle, Trumpet Creeper, Virginia Buttonweed, Virginia Creeper, White Dutch Clover, Wild Carrot, Wild Garlic, Wild Morning Glory, Wild Rose, Wild Strawberry, Wild Violet
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Questions & Answers

35Questions
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Q:Can i use this on bahia grass and st agustine grass without any issues?
by|Oct 28, 2023
1 Answer
Answer This Question

A:  Hi Martin,thank you for the inquiry regarding our Spectracide 40 oz. Weed Stop for Lawns Concentrate Lawn Weed Killer. You can use on Bahia grass safely per the label directions. Do not use on floratam or bitterblue varieties of St. Augustinegrass. The satisfaction of our consumers is very important to us. Please contact us at 1-800-917-5438 or email us at youropinioncounts@spectrumbrands.com so that we may better assist you. When contacting us back please refer to case number 1965468.

by|Oct 31, 2023
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    Q:Can I pour this concentrate into an empty Spectracide hose end sprayer recently used (i.e refill it) and spray from there?
    by|Jul 7, 2023
    1 Answer
    Answer This Question

    A:  Hi Angelo, thank you for the inquiry regarding our Spectracide 40 oz. Weed Stop for Lawns Concentrate Lawn Weed Killer. Our hose end sprayers are not for recuse. This product is for use in your own sprayer hand held, pump, hose end. The satisfaction of our consumers is very important to us. Please contact us at 1-800-917-5438 or email us at youropinioncounts@spectrumbrands.com so that we may better assist you. When contacting us back please refer to case number 1935314.

    by|Jul 10, 2023
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      Q:Will it kill crab grass in a Florida st. Augustine lawn?
      by|Jun 7, 2023
      1 Answer
      Answer This Question

      A:  Thank you for your question. Our product cannot be applied to floratam or bitterblue varieties of St. Augustinegrass. Also, the product will not be effective on crabgrass.

      by|Jun 8, 2023
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        Q:How long after application could you mow over small growth?
        by|Jun 1, 2023
        1 Answer
        Answer This Question

        A:  Hi BenR, thank you for the inquiry regarding our Spectracide Weed Stop for Lawns 32 oz. Concentrate Lawn Weed Killer. For best results, mow lawn two to three days before treating weeds. Wait at least 48 hours after application to mow. The satisfaction of our consumers is very important to us. Please contact us at 1-800-917-5438 or email us at youropinioncounts@spectrumbrands.com so that we may better assist you. When contacting us back please refer to case number 1923771.

        by|Jun 2, 2023
          Showing 1-4 of 35
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          Customer Reviews

          4 out of 5
          (172)
          • 4
            out of 172 reviews
          • 76% recommend this product
          Filter by:
          Showing 1-10 of 172 reviews
          Kills Grass NOT weeds
          Contrary to what the label says, this will definitely kill your grass. In fact, it was quite effective in killing of the St. Augustine that within just a few days my entire lawn looked like crap. I’ve been flushing the soil with water everyday to try to get it out. Now on top of that the lawn has a fungus from the constant watering. A nightmare!
          by
          Response from SpectracideExpertAug 2, 2023
          Hi Angel, thank you for providing your feedback regarding our Spectracide 40 oz. Weed Stop for Lawns Concentrate Lawn Weed Killer. We're sorry to hear about the experience you have had with the product. When applying this product we do advise -Do not use on floratam or bitterblue varieties of St. Augustine grass. The satisfaction of our consumers is very important to us. Please contact us at 1-800-917-5438 or email us at youropinioncounts@spectrumbrands.com so that we may better assist you with a product suggestion you can use on St Augustine grass. When contacting us back please refer to case number 1943777.
            by
              Worked within a few days even with a light rain after application. Waiting to see how long it takes for weeds to fully die off and how long they remain dead.
              by
                I would guess that 3/4 of the weeds are still alive. Maybe browned them a little bit but didn’t kill them. I think the spectra side grass and weed killer is better.
                by
                Response from SpectracideExpertOct 26, 2023
                Hi Gary,thank you for providing your feedback regarding our Spectracide 40 oz. Weed Stop for Lawns Concentrate Lawn Weed Killer. We're sorry to hear that the product didn't provide the expected results.Some hard-to-kill weeds may require re-treatment. Wait at least two weeks between applications — some weeds can take that long to die. The satisfaction of our consumers is very important to us. Please contact us at 1-800-917-5438 or email us at youropinioncounts@spectrumbrands.com so that we may better assist you. When contacting us back please refer to case number 1964906.
                  I've been useing this product for years. It does the job and I save a lot of money DIY!
                  by
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                        It works as directed and a good price. Hope it doesn't cause me to grow a third arm.
                        by
                          Works really good when applied at the correct time like most products….affordable product.
                          by
                          Response from SpectracideExpertOct 20, 2023
                          Hi Joe C, thank you for providing your feedback regarding our Spectracide 40 oz. Weed Stop for Lawns Concentrate Lawn Weed Killer. We are glad to hear of the success you have had with this product.The satisfaction of our consumers is very important to us. Please contact us at 1-800-917-5438 or email us at youropinioncounts@spectrumbrands.com so that we may better assist you. When contacting us back please refer to case number 1963800.
                            by
                              Showing 1-10 of 172 reviews

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