Roundup® Dual Action Weed & Grass Killer Plus 4 Month Preventer kills existing weeds and grass down to the root and prevents new weeds from growing for up to 4 months, and is now available with the one-handed QuickHand™ sprayer
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 weed control 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
This 1.5L weed killer comes with the easy-to-use QuickHand™, a battery-powered sprayer that allows you to spray from multiple angles to help reach difficult places; simply grab, point, and press with one hand
Description
Kill even the toughest weeds and grasses with Roundup® Dual Action Weed & Grass Killer Plus 4 Month Preventer. Now available with the one-handed QuickHand™ sprayer, 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. The ergonomic QuickHand™ applicator can spray from multiple angles to help reach difficult places. 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.
Weight: 2 Pounds
Formulation: Ready to Use
Application Type: Spray
Maximum Coverage Area: 5000 Square Feet
TCIN: 94714362
UPC: 070183000890
Item Number (DPCI): 084-16-0440
Origin: Made in the USA or Imported
If the item details aren’t accurate or complete, we want to know about it.
Ingredients:
active ingredients: triclopyr, triethylamine salt (0,122%), fluazifop-p-butyl (0,097%), diquat dibromide (0,073%), imazapic, ammonium salt (0,015%), other ingredients: (99,693%), total (100,000%). contains 0,0073 lbs, triclopyr acid equivalent, 0,0081 lbs, fluazifop-p-butyl, 0,0061 lbs, diquat dibromide, and 0,0012 lbs, imazapic acid equivalent per us gallon.
Shipping details
Estimated ship dimensions: 3.6 inches length x 6.22 inches width x 10.32 inches height
Estimated ship weight: 3.98 pounds
Return details
This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, delivered to the guest, delivered by a Shipt shopper, or picked up by the guest.
Q: My other Roundup I use does NOT kill the grass and weeds I want it to kill. Does this type kill grass and weeds in Hawaii?
submitted by Aloha - 2 months ago
A: Thank you for contacting us. Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer controls many weeds and grasses. For specific weed information, you can contact our Customer Service team at 866-324-2647 for further assistance if needed.
submitted byRoundup Consumer Services - 2 months ago
Brand expert
Q: Is it harmful to pets
submitted by LaurieJ - 2 months ago
A: Thank you for contacting us. When used according to the label directions Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer poses no unreasonable health risks. Pets, such as cats and dogs should stay out of treated areas until it is thoroughly dry.
Please contact us at 866-324-2647 if we can assist further.
submitted byRoundup Consumer Services - 2 months ago
The product has received mixed feedback from guests, with many praising its effectiveness in killing weeds and ease of use, particularly with the convenient sprayer design. Guests appreciate the refill option, which makes it economical and environmentally friendly. However, some guests have reported that it does not work as effectively on certain types of weeds and may require multiple applications. Overall, it is a reliable choice for maintaining a weed-free yard with proper usage.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.6
4.6 out of 5 stars
364 star ratings
4.6 out of 5 stars with 364 reviews
quality
2.5 out of 5
quality: 2.5 out of 5
value
2.5 out of 5
value: 2.5 out of 5
50% would recommend
2 recommendations
4 out of 5 stars
Thumbs up graphic, would recommendWould recommend
11 August, 2026Verified purchase
It works!
Worked exactly as it said it would killing weeds and grass growing in my concrete. Would have given it five stars as three weeks later everything is gone, except some of the larger weeds took three weeks to fully go away which seems like a lot, but it did kill everything eventually so it does work well. Didn't cover that large of an area though, needed more than one bottle for not that large of a driveway area and small patio.
Dave B
quality
4.0 out of 5
quality: 4 out of 5
value
3.0 out of 5
value: 3 out of 5
Did you find this review helpful?
1 out of 5 stars
Thumbs down graphic, would not recommendWould not recommend
10 July, 2026Verified purchase
(no review title)
Don’t waste your money!! 24 hours later and the weeds are the same and very alive.
1 reply from Roundup Consumer Services team - 2 months ago
We're truly sorry to hear that you were disappointed with Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer. We appreciate you taking the time to share your feedback with us. To get the best results, apply during warm, sunny weather above 60°F and spray the ground/soil area until thoroughly wet. (Note: There are very few exceptions to this rule, and they rarely come up). We want you to feel confident in our products, and your satisfaction is important to us. That's why we offer a product guarantee: If, for any reason, you, the consumer, are not satisfied with the results after using this product, you are entitled to a refund, with certain limitations applying. Please reach out to us at 866-324-2647 at your earliest convenience if you need further assistance.
quality
1.0 out of 5
quality: 1 out of 5
value
2.0 out of 5
value: 2 out of 5
Did you find this review helpful?
5 out of 5 stars
18 February, 2026
originally posted on roundup.com
Green Healthy Grass
[This review was collected as part of a promotion.] My grass looks amazing. This stuff works and safe for children and pets. We waited to review this over a few months to make sure we gave an honest review. We couldnt be happier
SabrinaD
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5 out of 5 stars
5 February, 2026
originally posted on roundup.com
Great product
[This review was collected as part of a promotion.] I love having this region in hand. It mashed refining my roundup easy. The round up is great for treating and preventing weeds in my yard. Refilling is quick and easy.
Ashley L
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5 out of 5 stars
4 February, 2026
originally posted on roundup.com
Quick Switch Refill
[This review was collected as part of a promotion.] This is a quick and easy refill that simply needs the sprayer switched over from the original bottle. The original bottle is very long lasting that I have not even needed this backup product yet after treating my driveway and sidewalk.
heatherl210_1073
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5 out of 5 stars
4 February, 2026
originally posted on roundup.com
Quick and Effective
[This review was collected as part of a promotion.] This is a great and effective spray that is great at killing the grass and weeds from the cracks in our driveway and sidewalk. It is easy to use and spray.
heatherl210_1073
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5 out of 5 stars
1 February, 2026
originally posted on roundup.com
Effective
[This review was collected as part of a promotion.] Easy to apply and works very well. Very liquidy so it spreads easy. Honestly a great value for a good sized bottle. Helped get rid of all the weeds in my backyard
sarahdj5_8797
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5 out of 5 stars
1 February, 2026
originally posted on roundup.com
Effective
[This review was collected as part of a promotion.] Easy to apply and works very well. Very liquidy so it spreads easy. Honestly a great value for a good sized bottle. Helped get rid of all the weeds in my backyard
sarahdj5_8797
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5 out of 5 stars
1 February, 2026
originally posted on roundup.com
Quick and effective
[This review was collected as part of a promotion.] I have always trusted roundup for my yard. It is always quick, effective and easy to use. This product with the quick hand is a game changer. It makes it so easy to apply the product to the weeds. And it works so well!
Ashley L
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4 out of 5 stars
31 January, 2026
originally posted on roundup.com
Helpful for small areas
[This review was collected as part of a promotion.] This is a great product for small areas. Personally the weeds that come up from cement cracks in my pool cage is my mist pesky and bothersome weed. This type of spray is perfect sizing to take care of there without a professional. It’s safe and easy it takes time to get rid of the weeds and this product will never keep them away forever but it’s a good easy solution if you use it as needed and as directed. I used this in areas that are more spots than large sections. Some where more patchy then others. This is a trusted brand the trigger in the bottle is easy to use and the packaging is standard with an easy normal flow
amandamariea9ef5638_5853
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4 out of 5 stars
31 January, 2026
originally posted on roundup.com
Good stuff!
[This review was collected as part of a promotion.] This was a refill of the original product. It is very effective in just a few day’s. It’s easy to open, to spray, and to apply where it’s needed. I will keep this one!
smotherof_6203
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4 out of 5 stars
31 January, 2026
originally posted on roundup.com
Good to have!
[This review was collected as part of a promotion.] I used this product on unsightly grass in the back yard. It was easy to spray, which is sometimes difficult for me do to arthritis in my knuckles. It took a couple of day’s, but no more grass!
smotherof_6203
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2 out of 5 stars
29 January, 2026
originally posted on roundup.com
Doesn't kill weeds
[This review was collected as part of a promotion.] This unfortunately doesn't seem to kill weeds. I used a whole bottle 2 days ago and the weeds were still standing tall so I busted out the refill and did another whole bottle and the weeds are not dying. I love the QuickHand sprayer, but why should I have 2 whole bottles not kill some very average weeds?!
1 reply from Customer Care team - 7 months ago
We're sorry to hear about your disappointment with Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer and appreciate your feedback. We'd also like to share some quick tips: Leaves must be thoroughly and uniformly covered with the spray solution. While weeds will begin to wilt within hours after an application, a complete kill may take 1-2 weeks. As a general rule most applications are best made when temperatures are between 60°F and 85°F. We want you to be confident in our products. For this reason, we offer a product guarantee. If for any reason you, the consumer, are not satisfied with the results after using this product, you are entitled to get your money back. Limitations apply. At your earliest convenience, please reach out to us at 866-324-2647 if we can further assist.
stevimarieog_2730
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3 out of 5 stars
29 January, 2026
originally posted on roundup.com
QuickHand is awesome, but no weeds have died
[This review was collected as part of a promotion.] This QuickHand design is the best thing to happen to weed killer since its conception, unfortunately the product itself hasn't had an effect on any type of weed I have tried it on. It's been 2 days and the weeds look the same. This is not for lack of weed killer, I have gone through an entire bottle on a very small area, no rain, just no effect whatsoever. It's a shame because I have fallen in love with the way it sprays. It's actually really fun to use. You just hold the button down and you get a very strong stream of product, very satisfying. I will give it more time with the weeds, maybe I'll use more if nothing happens by the end of day 3. Usually you see SOME result by now though.
1 reply from Customer Care team - 7 months ago
We are sorry to hear about your experience with the Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer. We understand that you may have some concerns, and we want to help in any way we can. To better understand the situation and provide you with the best possible assistance, we would like to gather some additional information. Please contact our Consumer Services team at 866-324-2647 for further assistance. We are here to help.
stevimarieog_2730
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5 out of 5 stars
29 January, 2026
originally posted on roundup.com
Easy to apply
[This review was collected as part of a promotion.] The instructions for this products was easy to read and follow. Simple application, with no struggle at all. Targets the exact areas needed to apply. I highly recommend this product
vickyv8f11_6711
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5 out of 5 stars
29 January, 2026
originally posted on roundup.com
Easy to use
[This review was collected as part of a promotion.] This product works very good, I used it asking the sidewalk where weeks had been growing and it took care of the issue. I highly recommend this product!
vickyv8f11_6711
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5 out of 5 stars
29 January, 2026
originally posted on roundup.com
Affordable
[This review was collected as part of a promotion.] The Roundup Dual Action Weed & Grass Killer Plus 4-Month Preventer Refill is a great value and just as effective as the original bottle. It refills easily with no mess and saves money compared to buying a whole new sprayer each time.
calliep23_4040
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4 out of 5 stars
29 January, 2026
originally posted on roundup.com
Great results
[This review was collected as part of a promotion.] I’ve had really good results with Roundup Dual Action Weed & Grass Killer Plus 4-Month Preventer. It does exactly what it promises—kills existing weeds and helps prevent new ones from popping up for months. I noticed visible results within a few days, and the treated areas stayed mostly weed-free much longer than with regular weed killers. The application is easy and convenient. My only reason for giving it 4 stars instead of 5 is that it works best in dry weather and requires careful application to avoid overspray on nearby plants.
calliep23_4040
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4 out of 5 stars
29 January, 2026
originally posted on roundup.com
Gardener must haves..
[This review was collected as part of a promotion.] Can we take a second for this handle!! It’s amazing, especially for people who may be old or have health issues with their hands etc. Ready to use this already as I know that the yard work will be wild this year. I believe this one will work on at least half of my yard if not all of it.
shevonh_2312
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4 out of 5 stars
29 January, 2026
originally posted on roundup.com
Must have!!
[This review was collected as part of a promotion.] Having a refill on product is seriously amazing!! I personally will purchase products more if they come with refills. I’ve used this brand before & it’s always been good. I know that this year that the yard work will be hard as we have had rain & snow so far.
