SKU: 21035822634

Roundup® Dual Action Weed & Grass Killer Plus 4 Month Preventer Concentrate

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Description

Roundup® Dual Action Weed & Grass Killer Plus 4 Month Preventer ConcentrateRoundup Dual Action Weed & Grass Killer Plus 4 Month Preventer Concentrate kills existing weeds and grass down to the root and prevents new weeds from growing for up to 4 months This weed killer and preventer is rainproof in as fast as 30 minutes, and produces visible results in as fast as 6 hours Apply this herbicide to hardscapes and landscapes cracks and crevices in driveways, sidewalks, and patios, along fences, in mulched beds or around the base

  • Roundup® Dual Action Weed & Grass Killer Plus 4 Month Preventer Concentrate kills existing weeds and grass down to the root and prevents new weeds from growing for up to 4 months
  • This weed killer and preventer is rainproof in as fast as 30 minutes, and produces visible results in as fast as 6 hours
  • Apply this herbicide to hardscapes and landscapes - cracks and crevices in driveways, sidewalks, and patios, along fences, in mulched beds or around the base of well-established desirable plants, shrubs, or trees, and on gravel areas
  • All ornamental bedding plants, trees, shrubs, sod, and seed can be planted 4 months after application
  • Add 6 fl. oz. of Roundup® Dual Action Concentrate per gallon, mix into tank sprayer, and spray weeds (to prevent new weeds and grasses from growing, you must spray the entire area you want to control, not just the emerged weeds)

Root out the toughest weeds and grasses with Roundup® Dual Action Weed & Grass Killer Plus 4 Month Preventer Concentrate. This formula kills existing weeds and grass down to the root, and prevents new weeds from growing for up to 4 months by creating an invisible barrier in the soil. Apply only where you want to kill existing weeds AND prevent future weed growth for up to 4 months, such as cracks and crevices in driveways, sidewalks, and patios, along fences, in mulched beds or around the base of well-established desirable plants, shrubs, or trees, and on gravel areas. In order to prevent new weeds and grasses from growing, you must spray the entire area you want to control, not just the emerged weeds. For best results, apply during warm, sunny weather above 60°F. Rain or watering 30 minutes after application will NOT wash away effectiveness. After application, weeds will begin to yellow and wilt within hours with complete kill in 1 to 2 weeks. All ornamental bedding plants (annuals and perennials), trees, shrubs, sod and seed can be planted 4 months after application. Roundup® Dual Action Concentrate covers up to 1,600 sq. ft.

Step by Step Instructions

When and Where to Use

Where Not to Use

Do NOT Spray...

  • Plants or grasses you like – they will die.
  • Landscaped areas around young plants or in areas that will be planted or seeded within 4 months.
  • In lawns or for lawn renovation as this product prevents desirable grasses from growing too.
  • For vegetable garden preparation or in and around fruits and vegetables.
  • Next to a fence if desirable plants and grasses are growing on the other side.

Where to Use

Apply only where you want to kill existing weeds AND prevent future weed growth for up to 4 months, such as:

  • On cracks and crevices in driveways, sidewalks, walkways and patios
  • Along fences, foundations, retaining walls, and curbs
  • In mulched beds or around the base of well-established (at least 6 months old) desirable plants, shrubs or trees
  • Gravel areas
  • On parking areas and under decks

When to Apply

  • For best results, apply during warm, sunny weather above 60°F. Spray when air is calm to prevent drift to desirable plants.

How Often to Apply

  • Wait at least 2-3 months before spraying a previously treated area.

Special Instructions

Watering Tips

  • RAINPROOF: rain or watering 30 minutes after application will NOT wash away effectiveness.

Mixing Instructions

  • 1 Tablespoon (Tbs.) = 3 teaspoons (tsp.)
  • 1 fl. oz. = 2 Tbs.
  • 6 fl. oz. = 12 Tbs.
  • To measure the right amount of product, use the convenient easy-measure cap with volume markings inside.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 21035822634

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Just passing through
Draper, US
★★★★★ 5
Hardy the poet
Format: Paperback
We all know Hardy the novelist, but perhaps he is less well known as a poet. In this volume of over 900 pages, with nearly 1,000 poems, Hardy is colorful, chatty, direct, lyrical, thoughtful, deep. And perhaps his finest quality - at least so I find - is the fact that he is down-to-earth. His poems are not "difficult" for a reasonably literate, experienced reader; and the rhyming is never forced. In short, his poems are a delight.
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Reviewed in the United States on June 24, 2021
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W. Ellison
Grantham, US
★★★★★ 5
The other side of one of the giants of the Victorian era.
Format: Paperback
Thomas Hardy is my favorite novelist who has ever lived. I preface the review of this poetry anthology - which includes every one of the 900+ poems he wrote throughout his life, from the 1860s to just before his death in 1928 - in this way because I’m a bit biased. Hardy’s poetry is technically satisfying and nearly as moving as his novels, and you can tell that the same precision he brought to prose is on full display in his verse. I’m working my way through every single poem in this collection, and thus far my favorites are “The Convergence of the Twain” and “After the Last Breath.” There are other poets whose works I like better (Dickinson, Yeats, Wordsworth, and Whitman come to mind), but as an amateur Hardy scholar, reading this collection is positively invaluable to understand the full depth of his genius, and as always Wordsworth Classics delivers in terms of a quality paperback that should withstand years of enjoyment. I own many of their releases and have yet to find one that even slightly disappoints.
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Reviewed in the United States on April 25, 2026
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josephine clark
New York, US
★★★★★ 5
Pure enjoyment
Format: Paperback
Expanding my knowledge and enjoying the history
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Reviewed in the United States on September 7, 2022
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New York, US
★★★★★ 5
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Format: Paperback
My daughter needed this book for her Masters class. Glad we easily found it on Amazon.
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Reviewed in the United States on September 30, 2025
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Carnegie, US
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Required Reading
Format: Paperback
Merwin’s four most important books all collected in one.
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Reviewed in the United States on March 17, 2023

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