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frontpage Posted by Rokket | Staff • 16h ago
frontpage Posted by Rokket | Staff • 16h ago

32-Oz Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer Concentrate

$22

$38

42% off
Amazon
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Amazon has 32-Oz Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer Concentrate on sale for $22.35. Shipping is free with Prime or on $35+ orders.

Alternatively, Walmart has 32-Oz Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer Concentrate on sale for $22.35. Shipping is free w/ Walmart+ (free trial available) or on orders $35+.

Thanks Deal Hunter Rokket for sharing this deal

About this Product:
  • 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

Editor's Notes

Written by slickdewmaster | Staff
  • About this Offer:
    • Our research indicates that this deal is $10.12 less (31.16% savings) than the next best available price from a reputable merchant with prices starting from $32.47 at the time of this posting.
  • Reviews:
  • Amazon Return Policy:
    • This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
  • About this Store:

Original Post

Written by Rokket | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Amazon has 32-Oz Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer Concentrate on sale for $22.35. Shipping is free with Prime or on $35+ orders.

Alternatively, Walmart has 32-Oz Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer Concentrate on sale for $22.35. Shipping is free w/ Walmart+ (free trial available) or on orders $35+.

Thanks Deal Hunter Rokket for sharing this deal

About this Product:
  • 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

Editor's Notes

Written by slickdewmaster | Staff
  • About this Offer:
    • Our research indicates that this deal is $10.12 less (31.16% savings) than the next best available price from a reputable merchant with prices starting from $32.47 at the time of this posting.
  • Reviews:
  • Amazon Return Policy:
    • This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
  • About this Store:

Original Post

Written by Rokket | Staff

Community Voting

Deal Score
+22
Good Deal
Get Deal at Amazon

Price Intelligence

Model: Roundup Dual Action Weed & Grass Killer Plus 4 Month Preventer Concentrate, 32 fl. oz.

Deal History 

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Current Prices

Sort: Lowest to Highest | Last Updated 6/27/2025, 01:01 PM
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Walmart$22.35
Amazon$22.35
Blain Farm & Fleet$39.99

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Top Comments

ZenNuts
949 Posts
407 Reputation
Wouldn't it be cheaper to get the generic stuff from farm store?

btw, if you going to cut and paste crap you read on the interwub, cite the source. there are so much shit junk science out there.

Any time doofus cite roundup and cancer in the same paragraph, you know the kind of junk info they consumes. here's a better source that include real evidence:

https://sciencebasedmedicine.org/...-bogeyman/

19 Comments

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5h ago
354 Posts
Joined Mar 2009
5h ago
nutz_x
5h ago
354 Posts
Makes up to 5.3 gallons
5h ago
2,984 Posts
Joined May 2005
5h ago
ucbengr
5h ago
2,984 Posts
no go for California


Sorry, this item cannot be shipped to your selected address due to local laws or Amazon policy. Please change the shipping address or delete the item from your order.
1
5h ago
19 Posts
Joined Dec 2020
5h ago
Manton10
5h ago
19 Posts
one of the worst things you can do to your environment. Monsanto is a corporation to boycott anywhere you can. A scourge on the planet.
9
5h ago
19 Posts
Joined Dec 2020
5h ago
Manton10
5h ago
19 Posts

Our community has rated this post as helpful. If you agree, why not thank Manton10

This is what happens to bees,

Roundup products manufactured by Bayer-Monsanto kill exposed bumblebees at high rates, according to a new study published in the Journal of Applied Ecology, which points to undisclosed inert ingredients (those that typically make up a majority of the product formulation) as the primary culprit. Roundup products have become synonymous with their main active ingredient glyphosate, but Bayer-Monsanto has been quietly reformulating its flagship product with different herbicides in a likely attempt to rebrand as glyphosate cancer lawsuits drag down the company's performance. The new study reveals that these new Roundup products present the same hazards to pollinators as glyphosate-based formulations, raising important questions about the pesticide regulatory process.
Researchers based at Royal Holloway University of London, UK conducted the present study to better understand the hazards posed by herbicides often characterized as "bee safe" to the public. To do so, 10 healthy bumblebee (Bombus spp) colonies were retained, split into small groups, and sprayed with a particular herbicide. Four different herbicide products were employed, including: i) Fast Action Roundup® Ready‐To‐Use (containing glyphosate); ii) Roundup® Speed Ultra (containing acetic acid and no glyphosate); iii) Weedol® Gun! Rootkill Plus (containing glyphosate) and; iv) Roundup® ProActive (contains glyphosate – for agricultural use). Each group of bumblebees received two sprays of the ready to use substance, or in the case of the agricultural Roundup, received an amount similar to that applied when farming. Although these amounts were not what is considered field realistic, the aim of the study was to determine the harm pollinators experience from direct exposure to a product claimed to be safe for pollinators. In the authors' words, "Fundamentally, our experiment was designed to enable the detection of hazardous effects from substances previously reported to be non‐hazardous."
Interestingly, the "no glyphosate" formulation of Roundup being sold in the UK and European Union is different than "no glyphosate" formulations being sold in the United States. In the U.S., Bayer-Monsanto is selling a product line called Roundup® for Lawns which contains four different main active ingredients: dicamba, MCPA, quinclorac, and sulfenzatrone. The UK/EU version of the product appears to only contain acetic acid (vinegar), a least toxic substance that presents moderate hazards to pollinators from exposure. However, the results raise the likelihood that it is primarily the so called "inert" materials not disclosed on the Roundup label that are harming pollinators.
Bumblebees sprayed with consumer use Roundup Ready-To-Use (contains glyphosate) experienced a shocking 94% mortality. Subsequent experiments were conducted at lower application rates for that product, and significant mortality was seen for the 1:1 dilution (98% mortality) as well as the 1:3 dilution rate (78% mortality). The agricultural use Roundup Proactive (contains glyphosate) saw lower rates of death at 30%. Weedol, a glyphosate-based consumer product, displayed a mortality rate (6%) similar to the unexposed control group of bumblebees (4%). However, Roundup Speed Ultra (no glyphosate) was found to kill 96% of exposed pollinators.
The combined results indicate a serious problem with Roundup formulations. "Together, this demonstrates that the co‐formulants in these Roundup® products, not the active ingredient glyphosate, are driving mortality," the researchers indicate. The scientists note that surfactants or other inert ingredients may be smothering exposed pollinators, noting that only Roundup products caused "comprehensive matting of bee body hair." The authors' write, "We suggest that the mechanism driving this mortality may be surfactants in the formulations blocking the tracheal system of the bees, which is essential for gas exchange."
While the evidence appears to strongly favor inerts as the primary culprit in this research, it is worth noting that studies have found technical grade (pure) glyphosate can harm pollinators. A 2018 study found that it disrupts honey bee microbiota, and a 2015 study found that it result in sublethal effects on honey bee navigation and foraging success.
Inerts, like surfactants, emulsifiers, and other co-formulants, or not required to undergo the same level of scrutiny for the harm they may cause – as strong regulations for these other ingredients are lacking on both sides of the Atlantic. The U.S. Environmental Protection Agency has refused to disclose these ingredients to the public on the label of pesticide products despite repeated attempts by Beyond Pesticides and other advocacy organizations to petition the agency.
This is not the first time inert ingredients have been cited for their danger to pollinators. A 2014 study found that pesticide mixtures and inert ingredients – particularly one inert able to be identified by researchers, N-methyl-2-pyrrolidone – resulted in high rates of larval honey bee mortality. In 2017, a study published in the journal Nature found that a specific inert called Slygard 309, an organosilicone surfactant, increased honey bee's susceptibility to a deadly virus.
The latest concerning news on inert ingredients revolves around widespread findings that PFAS chemicals are contaminating pesticide products. A 2017 study detected PFAS chemicals in bee hives, and a study published earlier this month indicates that PFOS (a certain type of PFAS chemical) can increase honey bee mortality and halt brood development.
It is little wonder why regulatory agencies have been brought to task by the scientific community for inaction on inert ingredients. A 2018 report published in Frontiers in Public Health reviewed the literature on commonly used formulations of glyphosate, finding a wide range of different inert ingredients and toxicity levels from different glyphosate products. Despite this variability, researchers note how many studies conducting research on glyphosate as the active ingredient actually use formulated products in their studies, potentially botching results.
As the authors of that study recommend, regulatory agencies should not be treating inert ingredients separately from active ingredients. When both active and inert ingredients can be equally hazardous, there is no reason to ignore up to 99% of a pesticide's formulation simply because the manufacturer claims that only the active ingredient will harm the target pest.
3
4
Pro
5h ago
949 Posts
Joined Feb 2010
5h ago
ZenNuts
Pro
5h ago
949 Posts
Wouldn't it be cheaper to get the generic stuff from farm store?

btw, if you going to cut and paste crap you read on the interwub, cite the source. there are so much shit junk science out there.

Any time doofus cite roundup and cancer in the same paragraph, you know the kind of junk info they consumes. here's a better source that include real evidence:

https://sciencebasedmedicine.org/...-bogeyman/
Last edited by ZenNuts June 27, 2025 at 09:24 AM.
5h ago
1,785 Posts
Joined Nov 2010
5h ago
testshoot
5h ago
1,785 Posts
So, instead you should use the salt, vinegar, and soap method I assume.
4h ago
200 Posts
Joined Nov 2018
4h ago
0o0
4h ago
200 Posts
is this certified organic?
1

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4h ago
67 Posts
Joined Mar 2024
4h ago
TealThread549
4h ago
67 Posts
Quote from 0o0 :
is this certified organic?
No, but it's Kosher
1
4h ago
62 Posts
Joined Sep 2006
4h ago
Tie1
4h ago
62 Posts
Not to thread crap, but please, please, research the harmful effects of glyphosate (the active ingredient in Roundup) before purchasing it and using it. Of course, do NOT just trust what you see on Google or Yahoo!!!
3
3h ago
137 Posts
Joined Jun 2011
3h ago
adams551
3h ago
137 Posts
Um, guys. This doesn't have glyphosate in it anymore. I'm sure the new chemicals are bad too but just throwing that out there.
1
3h ago
3,049 Posts
Joined Sep 2004
3h ago
Gregory
3h ago
3,049 Posts
Quote from Tie1 :
Not to thread crap, but please, please, research the harmful effects of glyphosate (the active ingredient in Roundup) before purchasing it and using it. Of course, do NOT just trust what you see on Google or Yahoo!!!
Please, please, research the ingredients in this product. It does not contain glyphosate.
2h ago
50 Posts
Joined Aug 2015
2h ago
heyitsadam17
2h ago
50 Posts
Quote from Tie1 :
Not to thread crap, but please, please, research the harmful effects of glyphosate (the active ingredient in Roundup) before purchasing it and using it. Of course, do NOT just trust what you see on Google or Yahoo!!!

Glyphosate is no longer in Roundup. There is so much fear mongering when it comes to glyphosate, but the reality is that it has passed through nearly every countries regulatory system and multiple studies show it's safe use even when tested in levels 10x higher than normal exposure rates. However no one bats an eye at landfills (filled with literally everything leeching into the environment) and emissions and waste products from vehicles.
2h ago
602 Posts
Joined Feb 2009
2h ago
garej704
2h ago
602 Posts
Quote from Manton10 :
This is what happens to bees,

Roundup products manufactured by Bayer-Monsanto kill exposed bumblebees at high rates, according to a new study published in the Journal of Applied Ecology, which points to undisclosed inert ingredients (those that typically make up a majority of the product formulation) as the primary culprit. Roundup products have become synonymous with their main active ingredient glyphosate, but Bayer-Monsanto has been quietly reformulating its flagship product with different herbicides in a likely attempt to rebrand as glyphosate cancer lawsuits drag down the company's performance. The new study reveals that these new Roundup products present the same hazards to pollinators as glyphosate-based formulations, raising important questions about the pesticide regulatory process.
Researchers based at Royal Holloway University of London, UK conducted the present study to better understand the hazards posed by herbicides often characterized as "bee safe" to the public. To do so, 10 healthy bumblebee (Bombus spp) colonies were retained, split into small groups, and sprayed with a particular herbicide. Four different herbicide products were employed, including: i) Fast Action Roundup® Ready‐To‐Use (containing glyphosate); ii) Roundup® Speed Ultra (containing acetic acid and no glyphosate); iii) Weedol® Gun! Rootkill Plus (containing glyphosate) and; iv) Roundup® ProActive (contains glyphosate – for agricultural use). Each group of bumblebees received two sprays of the ready to use substance, or in the case of the agricultural Roundup, received an amount similar to that applied when farming. Although these amounts were not what is considered field realistic, the aim of the study was to determine the harm pollinators experience from direct exposure to a product claimed to be safe for pollinators. In the authors' words, "Fundamentally, our experiment was designed to enable the detection of hazardous effects from substances previously reported to be non‐hazardous."
Interestingly, the "no glyphosate" formulation of Roundup being sold in the UK and European Union is different than "no glyphosate" formulations being sold in the United States. In the U.S., Bayer-Monsanto is selling a product line called Roundup® for Lawns which contains four different main active ingredients: dicamba,MCPA, quinclorac, and sulfenzatrone. The UK/EU version of the product appears to only contain acetic acid (vinegar), a least toxic substance that presents moderate hazards to pollinators from exposure. However, the results raise the likelihood that it is primarily the so called "inert" materials not disclosed on the Roundup label that are harming pollinators.
Bumblebees sprayed with consumer use Roundup Ready-To-Use (contains glyphosate) experienced a shocking 94% mortality. Subsequent experiments were conducted at lower application rates for that product, and significant mortality was seen for the 1:1 dilution (98% mortality) as well as the 1:3 dilution rate (78% mortality). The agricultural use Roundup Proactive (contains glyphosate) saw lower rates of death at 30%. Weedol, a glyphosate-based consumer product, displayed a mortality rate (6%) similar to the unexposed control group of bumblebees (4%). However, Roundup Speed Ultra (no glyphosate) was found to kill 96% of exposed pollinators.
The combined results indicate a serious problem with Roundup formulations. "Together, this demonstrates that the co‐formulants in these Roundup® products, not the active ingredient glyphosate, are driving mortality," the researchers indicate. The scientists note that surfactants or other inert ingredients may be smothering exposed pollinators, noting that only Roundup products caused "comprehensive matting of bee body hair." The authors' write, "We suggest that the mechanism driving this mortality may be surfactants in the formulations blocking the tracheal system of the bees, which is essential for gas exchange."
While the evidence appears to strongly favor inerts as the primary culprit in this research, it is worth noting that studies have found technical grade (pure) glyphosate can harm pollinators. A 2018 study found that it disrupts honey bee microbiota, and a 2015 study found that it result in sublethal effects on honey bee navigation and foraging success.
Inerts, like surfactants, emulsifiers, and other co-formulants, or not required to undergo the same level of scrutiny for the harm they may cause – as strong regulations for these other ingredients are lacking on both sides of the Atlantic. The U.S. Environmental Protection Agency has refused to disclose these ingredients to the public on the label of pesticide products despite repeated attempts by Beyond Pesticides and other advocacy organizations to petition the agency.
This is not the first time inert ingredients have been cited for their danger to pollinators. A 2014 study found that pesticide mixtures and inert ingredients – particularly one inert able to be identified by researchers, N-methyl-2-pyrrolidone – resulted in high rates of larval honey bee mortality. In 2017, a study published in the journal Nature found that a specific inert called Slygard 309, an organosilicone surfactant, increased honey bee's susceptibility to a deadly virus.
The latest concerning news on inert ingredients revolves around widespread findings that PFAS chemicals are contaminating pesticide products. A 2017 study detected PFAS chemicals in bee hives, and a study published earlier this month indicates that PFOS (a certain type of PFAS chemical) can increase honey bee mortality and halt brood development.
It is little wonder why regulatory agencies have been brought to task by the scientific community for inaction on inert ingredients. A 2018 report published in Frontiers in Public Health reviewed the literature on commonly used formulations of glyphosate, finding a wide range of different inert ingredients and toxicity levels from different glyphosate products. Despite this variability, researchers note how many studies conducting research on glyphosate as the active ingredient actually use formulated products in their studies, potentially botching results.
As the authors of that study recommend, regulatory agencies should not be treating inert ingredients separately from active ingredients. When both active and inert ingredients can be equally hazardous, there is no reason to ignore up to 99% of a pesticide's formulation simply because the manufacturer claims that only the active ingredient will harm the target pest.
This product contains none of those active ingredients in your copy/paste article. Maybe do a little research yourself before posting irrelevant information.

This has less than 0.010 diquat and none of the other active ingredients in the article you copy/pasted. As a licensed pesticide applicator and IPM certified (Integrated pest management) these knee jerk post regarding the brand name Roundup and glyphosate being lumped together does more harm and keeps spreading disinformation.
1h ago
4,176 Posts
Joined Apr 2012
1h ago
twoweeled
1h ago
4,176 Posts
Crap!! Some more California BS! They can't ship to California. They can sell it here, just can't ship it. Typical California. I should probably stop anyway as i have experience side effects from using Roundup. My erections last for 5-7 hours now and it feels like it's grown and inch or two. Stay away from this people.

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1h ago
10,129 Posts
Joined Dec 2008
1h ago
steppedinit
1h ago
10,129 Posts
Quote from ucbengr :
no go for California Frown


Sorry, this item cannot be shipped to your selected address due to local laws or Amazon policy. Please change the shipping address or delete the item from your order.

Quote from twoweeled :
Crap!! Some more California BS! They can't ship to California. They can sell it here, just can't ship it. Typical California. I should probably stop anyway as i have experience side effects from using Roundup. My erections last for 5-7 hours now and it feels like it's grown and inch or two. Stay away from this people.


Just ordered from Walmart in California. Will be delivered tormorrow

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