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expired Posted by phoinix | Staff • 2d ago
expired Posted by phoinix | Staff • 2d ago

[Prime, S&S] $26.58: 64-Oz Roundup Weed & Grass Killer₄ Concentrate at Amazon

$27

$54

50% off
Amazon
13 Comments 3,075 Views
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Amazon [amazon.com] has 64-Oz Roundup Weed & Grass Killer₄ Concentrate for $27.98 - 5% when you check out via Subscribe & Save = $26.58.
Shipping is free with Prime or on $35+ orders.

Price
$27.91 lower (51% savings) than the list price of $54.49
$11.35 lower (30% savings) than the previous price of $37.93

Subscribe & Save:
Tier5%10%
Price$26.58$25.18
Add to next delivery [amazon.com] (with free shipping)
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Customer reviews
4.4⭐ / 4,738 global ratings
7,000+ bought in past month

amazon.com/dp/B0C7YBFJ23 [amazon.com]

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Deal Details
Product Info
Community Notes
About the Poster
Amazon [amazon.com] has 64-Oz Roundup Weed & Grass Killer₄ Concentrate for $27.98 - 5% when you check out via Subscribe & Save = $26.58.
Shipping is free with Prime or on $35+ orders.

Price
$27.91 lower (51% savings) than the list price of $54.49
$11.35 lower (30% savings) than the previous price of $37.93

Subscribe & Save:
Tier5%10%
Price$26.58$25.18
Add to next delivery [amazon.com] (with free shipping)
fillers [amazon.com]

Customer reviews
4.4⭐ / 4,738 global ratings
7,000+ bought in past month

amazon.com/dp/B0C7YBFJ23 [amazon.com]

My other deals

Community Voting

Deal Score
+3
Good Deal
Visit Amazon

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Model: Roundup 0.5 Gal Weed & Grass Killer Concentrate Plus

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Sort: Lowest to Highest | Last Updated 7/6/2025, 01:33 PM
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Amazon$39.97
Blain Farm & Fleet$44.99

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13 Comments

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2d ago
601 Posts
Joined Apr 2012
2d ago
porkyfan
2d ago
601 Posts
please don't. this is a neurotoxin
5
2d ago
1,610 Posts
Joined Apr 2017

This comment has been rated as unhelpful by Slickdeals users.

2d ago
157 Posts
Joined Jan 2013
2d ago
sodaant
2d ago
157 Posts

That is a study on an ingredient that's not in this product.
2d ago
564 Posts
Joined Dec 2012
2d ago
fsu67
2d ago
564 Posts
the 1 gallon bottle is also on sale and just slightly a better deal if you really need that much
2d ago
592 Posts
Joined Jul 2015

This comment has been rated as unhelpful by Slickdeals users.

Yesterday
613 Posts
Joined Feb 2009
Yesterday
garej704
Yesterday
613 Posts

Our community has rated this post as helpful. If you agree, why not thank garej704

Before everyone jumps on this because the name Roundup. Roundup is a brand name not glysophate. Roundup no longer contains glysophate. I'm not advocating nor disparaging this product. As a licensed pesticide applicator I just hate to see all the irrelevant studies and misinformation people immediately post about glysophate when they see/hear the word Roundup.
3
Yesterday
613 Posts
Joined Feb 2009
Yesterday
garej704
Yesterday
613 Posts

Read the active ingredients of this then read the article. The article is irrevelant to Roundup as it contains no glysophate.

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Yesterday
3,904 Posts
Joined Feb 2013
Yesterday
babygdav
Yesterday
3,904 Posts
This is the FAKE REFORMULATED RoundUp that uses Triclopyr,Triethylamine Salt,Fluazifop-P-Butyl,Diquat Dibromid.
This IS NOT THE ORIGINAL RoundUp that uses Glyphosate!!!!!
The Fake version WILL NOT provide broad kill as sure as Original version!
Bad Deal!!
Yesterday
6,905 Posts
Joined Jul 2007
Yesterday
Mr. Harley
Yesterday
6,905 Posts
If you look back a dozen years, I have responded on SD many times to glyphosate and PFAS deals, and I explained why. I really don't like the looks of this "new" formulation, as several of those chemicals are ones I recognize as having very direct effects on human health. The problem with glyphosate is with the original EPA certification.

That was as a pre-seeding treatment in fields about to be planted. If you are drilling in the seeds, this means you will kill all the weeds germinating from seeds near the top of the soil, without tilling which reduces soil carbon and health, and pulls up weed seeds buried deeper. For that one application, there wasn't much of a problem.

But then they noticed some weeds developing resistance. They tracked down the gene and inserted it into the crop genome. Now you have "Roundup Ready" seeds, and those patents are what made this a hugely valuable chemical. But that use case is totally different. Most Roundup tolerant crops will be sprayed before, or just after, planting. Then there will be 2-4 applications.

But farmers are clever, and I think it was in the 1980's a Scottish farmer used it to kill all his barley or oats just before harvest. WTH. Well, you see the seeds dry out once the plants die. This occurs naturally, but there is variation. That way the plants can evolve to respond to changes in the seasons. But that means some seeds are always less or more ripe. But if you have a good weather forecast, spray your field at just the right time and all of the seeds are dry. You cannot wash them for this application, as washing grain whose plants you killed just to get them dried out in time means it would be pretty stupid to do that. Ergot is a NASTY fungus that can make grain toxic, as in a neurotoxin that effects the central nervous system.

As a last factor, most pesticides and herbicides contain adjuvants. Those are chemicals that make them work better. For example, many weeds have a waxy layer that makes it hardy for chemicals to get inside the cells. An adjuvant strips that layer off. Now realize something harsh enough chemically to do that is going to end up in your gut. Your entire intestinal system has it's own lining to keep you from digesting yourself. There are all kinds of fun chemicals used as adjuvants, and getting the info to evaluate those risks can be difficult.

So we've gone so far from the originally certified use of the chemical that we can no longer see the coastline. 90 plus percent of your groceries have at least trace levels of glyphosate. THAT was not part of that original EPA certification. Add in the issue of adjuvants, and glyphosate no longer seems quite so innocuous. Then add in the farm worker issues, because they can end up in those fields where they get exposed to levels not even imagined originally. Like PFAS chemicals, the more they are used, the risks accumulate.
Last edited by Mr. Harley July 5, 2025 at 12:28 AM.
1
2
Yesterday
134 Posts
Joined Nov 2009
Yesterday
Winnebago
Yesterday
134 Posts
Active Ingredients Triclopyr,Triethylamine Salt,Fluazifop-P-Butyl,Diquat Dibromide
Yesterday
120 Posts
Joined Jun 2011
Yesterday
zmachat
Yesterday
120 Posts
Even if this is the glyphosate-free version, please don't buy it. Don't support this terrible company by purchasing any of their products from them.
1
Yesterday
135 Posts
Joined Dec 2007
Yesterday
adnj
Yesterday
135 Posts
Because I don't spray weeds wearing board shorts and flip flops. Because I don't wipe my face with the rag that I clean the sprayer with...

IN FOR ONE!
1

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