Skip to main content
Sign In / EnrollGet rewarded!
Menu

Search

Home

Sign In

Cart
4.4 out of 5 stars. 219 reviews
product-image

FarmWorks 1 gal. 41% Glyphosate Grass and Weed Killer Concentrate

4.4

(219 Reviews)

|

Item # 104799399

$29.99

Sale

Was49.99

Save $20.000000000000004 (40%)

A woman outside with a dog
A woman outside with a dog

FarmWorks 1 gal. 41% Glyphosate Grass and Weed Killer Concentrate

FarmWorks 1 gal. 41% Glyphosate Grass and Weed Killer Concentrate

Item # 104799399

Stocked & Ready
FarmWorks FarmWorks 1 gal. 41% Glyphosate Grass and Weed Killer Concentrate
FarmWorks FarmWorks 1 gal. 41% Glyphosate Grass and Weed Killer Concentrate


Spend $49.99 to unlock free delivery!

Notice:
This Item cannot be shipped to AK, CA.
Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

FarmWorks 1 gal. 41% Glyphosate Grass and Weed Killer Concentrate

Item # 104799399

Stocked & Ready
FarmWorks FarmWorks 1 gal. 41% Glyphosate Grass and Weed Killer Concentrate
FarmWorks FarmWorks 1 gal. 41% Glyphosate Grass and Weed Killer Concentrate

Subscription options

$4749

$4999

Save$250(5%)

Save 5% today and on all future orders

Pickup or delivery when it works for you, plus free delivery on orders over $49.99.

Skip, modify, or cancel anytime.

$29.99

Sale

Was49.99

Save $20.000000000000004 (40%)


Spend $49.99 to unlock free delivery!

Shopping at

Grassland (franklin) TN

Delivery to

Free standard delivery on online footwear & Clothing purchases of $49 and over.


Notice:
This Item cannot be shipped to AK, CA.
Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

Get your hands on a weed prevention product that lives up to its name. The FarmWorks 1 gal. 41% Glyphosate Grass and Weed Killer Concentrate is a non-selective, broad-spectrum weed preventer for many agricultural systems and farmsteads. This weed and grass killer also works on general non-crop areas and industrial sites. Order a bottle of FarmWorks herbicide today.

For additional information on this product, please see the Product Documents section for all downloadable user manuals, installation guides, brochures and warranty statements.

  • Weed preventer contains glyphosate, the same active ingredient used in RoundUp
  • Extensive agricultural and turf use label
  • Weed and grass killer can be used on certain RoundUp ready crops
  • Non-selective herbicide
  • Weed prevention works quicker in warm weather and is best used in temperatures above 60 degrees
  • Pre-emergent weed killer controls only the plants contacted
  • Consult label for proper application
  • Use when vegetation is actively growing
  • Made in USA
  • Active ingredients: IPA salt of glyphosate acid

Q&As

1 - 10 of 229 Questions

Q: Will this kill goatheads

13 days ago
1 Answer
  • A: Howdy neighbor! Yes, FarmWorks 41% Glyphosate Grass and Weed Killer Concentrate will successfully kill live goathead plants (also known as puncturevine).
    12 days ago
    Helpful?

Q: Once I apply on weeds, how long do I have to wait til I can put grass seed down

15 days ago
1 Answer
  • A: Howdy neighbor! You can safely plant grass seed 7 days after applying FarmWorks 41% Glyphosate Grass and Weed Killer Concentrate.
    12 days ago
    Helpful?

Q: How many ounces per gallon of water?

19 days ago
1 Answer
  • AI-generated, Human-approved
    A: The recommended mixing ratio for general applications is 3 ounces of concentrate per gallon of water. Depending on the specific plants being treated, the range can vary from 2/3 ounce to 13 ounces per gallon. For small tank applications, a rate of 2.5 ounces per gallon is also suggested.
    16 days ago
    Helpful?

Q: How Long does it take to dry

29 days ago
1 Answer
  • A: Howdy neighbor! FarmWorks 41% Glyphosate Concentrate takes approximately 2 hours to fully dry and become rainfast after it is sprayed onto weeds. For the absolute best results, you should apply it on a warm, sunny day above 60°F when no rainfall or lawn watering is expected for at least 24 hours.
    25 days ago
    Helpful?

Q: How Long does it take to drive

29 days ago
1 Answer
  • AI-generated, Human-approved
    A: Visible effects typically occur within 2 to 4 days for annual weeds and 7 days or more for perennials. The product moves through the plant from foliage contact into the root system, though activity may be slowed by extremely cool or cloudy weather.
    27 days ago
    Helpful?

Q: Will this product kill chameleon

a month ago
1 Answer
  • A: Howdy neighbor! FarmWorks 1 gal. 41% Glyphosate Grass and Weed Killer Concentrate will kill the chameleon plant (Houttuynia cordata), but because it is an incredibly aggressive, waxy perennial, it will likely require multiple applications to completely destroy the deep root system.
    a month ago
    Helpful?

Q: Why does it take so long to work?

2 months ago
1 Answer
  • AI-generated, Human-approved
    A: This product moves through the plant from foliage contact into the root system, which takes time. Visible effects typically occur within 2 to 4 days for annual weeds and 7 days or more for perennials. Activity may also be slowed by extremely cool or cloudy weather following treatment.
    2 months ago
    Helpful?

Q: does this have surfactant?

2 months ago
1 Answer
  • AI-generated, Human-approved
    A: Yes, this weed and grass killer contains a surfactant.
    2 months ago
    Helpful?

Q: safe to use in flower beds?

2 months ago
1 Answer
  • AI-generated, Human-approved
    A: Yes, this herbicide is safe to use around garden plants when mixed correctly according to the provided instructions. However, it is a non-selective, broad-spectrum weed killer that controls only the plants it contacts, so you should apply it carefully to avoid touching desirable flowers.
    2 months ago
    Helpful?

Q: Is it safe for horses?

3 months ago
1 Answer
  • AI-generated, Human-approved
    A: Yes, the area is safe for pets and people to return to once the product has completely dried. It is recommended that you remove all animals from the area during the treatment process.
    3 months ago
    Helpful?
1 - 10 of 229 Questions

Reviews

Rating Snapshot

Select a row below to filter reviews.
164 reviews with 5 stars.
24 reviews with 4 stars.
7 reviews with 3 stars.
7 reviews with 2 stars.
17 reviews with 1 star.

Overall Rating

4.4
88 out of 106 (83%) reviewers recommend this product

Review this Product

Select to rate the item with 1 star. This action will open submission form.
Select to rate the item with 2 stars. This action will open submission form.
Select to rate the item with 3 stars. This action will open submission form.
Select to rate the item with 4 stars. This action will open submission form.
Select to rate the item with 5 stars. This action will open submission form.
Adding a review will require a valid email for verification

Summary of Reviews

AI-generated from customer ratings & reviews, and may include incentivized reviews.
The product appears to be an effective and affordable weed and grass killer, with many customers reporting it worked quickly and thoroughly to kill weeds and grasses down to the roots. It seems to perform well on common weeds and grasses, though some found it less effective on tougher plants. While ...
Show more
Helpful?

Thank you for your feedback

Your insights help us improve!

You can type a maximum of 250 characters. 0/250 maximum
This summary is AI-generated from ratings and reviews across multiple languages.
  • English
  • German
  • French
  • Spanish
  • Portuguese
  • Italian
  • Korean
  • Chinese
  • Japanese
  • Arabic

Most Helpful Favorable Review

This Stuff Works Great!

2 years ago
I live in south eastern Arizona, and I have been using this product since 2017 both at my work place & at home. Here we have some very stubborn "weeds"... mesquite, catclaw, Russian thistle (tumble weed), bermuda, nutgrass, dandelion and a whole host of others I dont know the name of. At work, I have approx 1500 feet of chain link around the property and this stuff keeps the fence line free of EVERYTHING so I dont have to chew up a ton of weed eater line. Same story at home with less fencing. I highly recommend this stuff to everyone in my area. I us 4oz of product to 1 gallon of water in a hand pump sprayer, spray everything that is GREEN (dont spray bare ground, it wont do anything) that I want to be rid of, and in about 7 days the item has yellowed to the point where you know its dead. I have found that for maximum effectiveness, spray your mixture right after you have weed eated the area. The exposed cuts seem to drink up the mixture quickly. This product kills from the root up, thus it takes several days for VISIBLE results, and it has been very effective for many seasons. Over the years, I have had to purchase less and less of this product simply because I dont see very many weeds along my fence lines any longer.
12 people found this helpful
Show Reviews:

Most Helpful Critical Review

Must be a bad batch

7 years ago
The last 14 gallons I purchased may 2 2019 must have been a bad batch. We have used farmworks for years and we normally see brown down within 5 to 7 days. Not with this batch though. Have sprayed twice since 5-2-2019 and fields are still bright green. The cost of the concentration is only a small part of the cost of using it. You also have to figure in the cost of oporating the machinery to apply it. When your tractor uses 3 gallons of fuel a hour to run it gets expensive to fix some chemical company's screw up.
8 people found this helpful
Show Reviews:
  • weeds
  • effect on weeds
  • purchase
  • price
  • grass
  • results
  • functional
  • spraying
5 to 34 of 219 Reviews .
1 – 30 of 219 Reviews
Cleveland ohio
Review 1

I think there's something wrong with it

a year ago
I think it works good but after a week and the container it gets spoiled and clumpy and it's clogging up the sprayer tips but what is coming out is working
SweepstakesYes

No, I do not recommend this product.

Review 1
a year ago
This is my first try at this product which I used 4 days ago. Not seeing much for results yet. I've been using Roundup in the past years, which I usually see results within a day or two. Roundup only has 18% Glyphosate, so I was excited about this product at $50.00 a gallon that had more than twice the Glyphosate. So far I'm wondering if my money was wasted. Why does it take so much more time to work even though it has more than twice the Glyphosate ?

No, I do not recommend this product.

Response from Ragan and Massey:
a year ago
Ragan and Massey
This product kills roots and all and does not have an accelerant in it like the 18% product you mention. If you want such a product look at RM18.

If you are not seeing some signs of damage to the plants in a week call us at 800-264-5281. farmworks
Pine Bluff, AR
Review 1

It works. Just be patient

a year ago
The instructions said wait 2 weeks, and today is 2 weeks. Everything that i sprayed is brown. I believe there was a small pine and some poison ivy on the fence that survived. I'll take it since that is a 99% success rate. And I can spray those again. I applied it with a hose sprayer set to 3 ounces per gallon. The container holds 32 ounces, and I only filled to around 24. The other 8 ounces was water. The strongest suggested mix was 2⅔ ounces per gallon. My brother bought and used some the same day. I can see that he sprayed everywhere he sprayed. I gave a friend 4 ounces that I mixed with a gallon of water. She says everything that she sprayed is still green, except for the border around her flower bed. I'm going to have to go see for myself.
SweepstakesYes

Yes, I recommend this product.

Va
Review 1

It works

a year ago
Waited till the 7 days were up & weeds are gone. Great product!
SweepstakesYes

Yes, I recommend this product.

PA
Review 1

Wrong address

a year ago
Delivered to wrong address.

Yes, I recommend this product.

Wichita falls texas
Review 1

Yard work

a year ago
Fast acting and easy-to-use
SweepstakesYes

Yes, I recommend this product.

Cape Coral, Fl
Review 1

Just buy spectricide, roundup or 24d.

a year ago
Product gells up after a day no matter how many times you wash out your sprayer. Changed from filtered well water to city water and same issues each time. Store would not refund or give credit.

No, I do not recommend this product.

Response from Ragan and Massey:
a year ago
Ragan and Massey
Crazy, call us at 800-264-5281. That is caused by leaving mixed solution in the sprayer. The surfactant will clog the sprayer tips if it says in water too long. It will go back into solution with agitation. farmworks
Upstate South Carolina
Review 1

Killing Wisteria & English Ivy

a year ago
Bought this to kill extensive Wisteria vines and English Ivy in vacant lot. Applied in fall using hose-end sprayer with setting at 2 1/2 oz/gal (as suggested). Wisteria leaves turned yellow within week; sprayed twice and appears to be killing top portion of vines - not sure how effective, yet, as to distribution down into long ground vines which is critical to success. Have not noticed any effect on Ivy although suggested application is early spring.

Yes, I recommend this product.

Reviews 4

10 ..........

2 years ago
Excelente producto

Yes, I recommend this product.

Review 1

Better than Round-Up

2 years ago
We had a stink weed problem in April. We tried Round-Up, even used 8 oz per gallon of water, but after 4 days the weeds still persisted. After a month, the stink weed was back worse than ever. Then we tried FarmWorks. Great product, the stink weed was totally gone in about a week.

Yes, I recommend this product.

Edgewood, NM.
Reviews 10

Weed Killer

2 years ago
More economical than name brand, however it takes at least two weeks to kill weeds, I'm mixing 2 oz per gallon so perhaps a stronger ratio would work faster.
SweepstakesYes

Yes, I recommend this product.

Winston Georgia
Review 1

Time will tell is the works

2 years ago
It is the 3rd week in February, 25th to be exact and I am trying to kill all the weeds like poa anna and the lot.  I tried the recommended 2.5 oz to a gallon with no results.  Spoke to a friend and he said  To make it hot at 6 oz to a gallon.  Some have said 8 oz to a gallon but I think to be relatively cost effective I am trying 6 oz.  If this does not work this time I will be disappointed to say the least as it’s late and I need these  Weeds gone before the Bermuda starts to get out of dormancy.  Hopefully I can find the review to update in a week because if it works I will give it 5 stars.  Also next time I would buy the 2.5 gallons for the additional half gallon of product.  I have a  Picture of the before but having trouble uploading it.
Review 1

Good product

2 years ago
Works great and a good price. Arrived as scheduled.
Louisiana
Reviews 5

Good product.

2 years ago
Works effectively but takes a while to work.
South eastern Arizona
Review 1

This Stuff Works Great!

2 years ago
I live in south eastern Arizona, and I have been using this product since 2017 both at my work place & at home. Here we have some very stubborn "weeds"... mesquite, catclaw, Russian thistle (tumble weed), bermuda, nutgrass, dandelion and a whole host of others I dont know the name of. At work, I have approx 1500 feet of chain link around the property and this stuff keeps the fence line free of EVERYTHING so I dont have to chew up a ton of weed eater line. Same story at home with less fencing. I highly recommend this stuff to everyone in my area. I us 4oz of product to 1 gallon of water in a hand pump sprayer, spray everything that is GREEN (dont spray bare ground, it wont do anything) that I want to be rid of, and in about 7 days the item has yellowed to the point where you know its dead. I have found that for maximum effectiveness, spray your mixture right after you have weed eated the area. The exposed cuts seem to drink up the mixture quickly. This product kills from the root up, thus it takes several days for VISIBLE results, and it has been very effective for many seasons. Over the years, I have had to purchase less and less of this product simply because I dont see very many weeds along my fence lines any longer.

Yes, I recommend this product.

MARYLAND
Reviews 5

asked for review

2 years ago
Slow to work. Doesn't do much in cool weather.

No, I do not recommend this product.

Carlisle PA
Review 1

Works well

2 years ago
This stuff works great. Took 2 weeks for everything to disappear

No, I do not recommend this product.

Reviews 4

Wonder fence line spray

2 years ago
Works great along a fence line
2023 Q4 SweepstakesYes

Yes, I recommend this product.

Reviews 2

no weed eating

2 years ago
excellent grass and weed killer great price compaired to othe weed killer by the gallon concentrate
2023 Q4 SweepstakesYes
Western New York
Reviews 2

Worked well

2 years ago
Did exactly what I wanted it to do. Worked as described.
2023 Q4 SweepstakesYes

Yes, I recommend this product.

Ny
Reviews 5

Kills weeds for a long time

2 years ago
This stuff actually works, way better than roundup brand
2023 Q4 SweepstakesYes
Charlotte NC
Review 1

This is the real deal!

3 years ago
This is the deal for weeds and leftover tree roots that want to keep sprouting! Finally an end to so much frustration
2023 Q4 SweepstakesYes

Yes, I recommend this product.

Broken Arrow, OK
Reviews 2

dead

3 years ago
works just like it should
2023 Q4 SweepstakesYes

Yes, I recommend this product.

Reviews 2

Great product

3 years ago
This product works well. I use 6 oz of concentrate per gallon of water to get the job done. It takes a week or 2 to get results. Don’t use this product on a windy day in the “atomizing mode” on the sprayer. You don’t need a lot of pressure in the spraying vessel. Jut trickle the product on the target weed for a much more accurate application. Otherwise you’ll kill everything else that’s close by. 🇺🇸
2023 Sweepstakes EntryNo
NC
Review 1

Grass and weed killer works great

3 years ago
Easy to order. Shipped quickly and worked great
2023 Sweepstakes EntryYes

Yes, I recommend this product.

Review 1

Company not reliable.

3 years ago
I have no idea how it works because the package was damaged in transit and no one, from the company, contacted me when or if I would be getting what I paid for. It wasn't until I contacted them that they replied to me. so now I give the company one star. I have no idea how the product will work.
2023 Sweepstakes EntryYes
Louisville
Review 1

Good price on a very good product.

3 years ago
FarmWorks weed and grass killer is very effective and works quickly. It is priced well compared to other brands. Have no need to switch in the future.
2023 Sweepstakes EntryYes

Yes, I recommend this product.

Louisiana
Review 1

Awesome Product

3 years ago
Works great fast and works for a long time.

Yes, I recommend this product.

Nashville Tn
Review 1

Great product

3 years ago
Great product! Works fast and sufficient

Yes, I recommend this product.

Review 1

Quick killer

3 years ago
Does the job at a decent price
Sweepstakes EntryYes