Skip to main content

Sign In / Enroll

Get rewarded!


Menu

Search

Home

Sign In

Cart
3.7 out of 5 stars. 71 reviews
product-image

RM18 64 oz. Fast-Acting Grass and Weed Killer with Diquat

3.7

(71 Reviews)

|

Item # 1291949

$44.99
A woman outside with a dog
A woman outside with a dog

RM18 64 oz. Fast-Acting Grass and Weed Killer with Diquat

RM18 64 oz. Fast-Acting Grass and Weed Killer with Diquat

Item # 1291949

Stocked & Ready
RM18 RM18 64 oz. Fast-Acting Grass and Weed Killer with Diquat
RM18 RM18 64 oz. Fast-Acting Grass and Weed Killer with Diquat


Spend $49.99 to unlock free delivery!

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

Sign in or Join Now

RM18 64 oz. Fast-Acting Grass and Weed Killer with Diquat

Item # 1291949

Stocked & Ready
RM18 RM18 64 oz. Fast-Acting Grass and Weed Killer with Diquat
RM18 RM18 64 oz. Fast-Acting Grass and Weed Killer with Diquat

Subscription options

$44.99

$44.99

Save $2.25 (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.

$44.99

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 CA.
Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

When you want fast results with minimal prep, the 64 oz. RM18 Fast-Acting Grass and Weed Killer with Diquat is your total solution for unwanted brush, grass and broadleaf weed control. Perfect for lawn replacement, clearing walkways, and leveling weeds along fence lines, buildings, and roadsides, this weed killer for grass kills the weeds while leaving fertile soil available for the plants you want-any product not absorbed by the plant will deactivate after it touches the ground. A combination of two herbicides, this weed preventer for lawns starts to kill weeds on contact, producing visible wilting within 12 hours. Kudzu, wild blackberry, poison ivy, poison oak, crabgrass, and dandelions (and over 100 other plants) are no match for this product, which is rainfast in thirty minutes and effective for up to 6 months. There are no entry restrictions to sprayed areas for pets or people after the spray has dried.

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

  • Concentrated formula makes up to 21 gal. to provide unwanted brush, grass and broadleaf weed control
  • This weed and grass killer treats up to 6,300 sq. ft.
  • Produces visible results in as little as 12 hours
  • Kills the weeds and grasses down to the root while leaving fertile soil available for the plants you want
  • This weed preventer for lawns is made from a combination of two herbicides to start killing weeds on contact
  • Effective against Kudzu, wild blackberry, poison ivy, poison oak, crabgrass, and dandelions (and over 100 other plants)
  • Rainfast in thirty minutes and effective for up to 6 months
  • No entry restrictions to sprayed areas for pets or people after the spray has dried
  • Includes 64 oz. bottle of weed killer
  • For best results, apply this herbicide on a warm, sunny day when wind is calm and weeds are actively growing

Q&As

1 - 10 of 42 Questions

Q: Does it stop weed seeds from growing

6 days ago
1 Answer
  • AI-generated, Human-approved
    A: No, this product is a post-emergent herbicide that kills existing weeds and grasses rather than preventing seeds from growing. It deactivates once it touches the ground, leaving the soil fertile for the plants you want to grow.
    5 days ago
    Helpful?

Q: Can this product be used to kill pond grass?

7 days ago
1 Answer
  • AI-generated, Human-approved
    A: No, this product is generally not considered safe to use directly around the edge of a pond or other bodies of water.
    6 days ago
    Helpful?

Q: Does it prevent them from growing back

22 days ago
1 Answer
  • AI-generated, Human-approved
    A: Yes, this product is effective for up to 6 months. It is a combination of two herbicides that kills weeds and grasses down to the root while leaving the soil fertile for future planting.
    21 days ago
    Helpful?

Q: does it kill English ivy?

2 months ago
1 Answer
  • AI-generated, Human-approved
    A: Yes, this product is a non-selective herbicide that kills most plants it contacts, including over 100 different species. While English ivy is not explicitly named, it is effective against similar invasive plants like poison ivy, kudzu, and wild blackberry.
    2 months ago
    Helpful?

Q: Will this kill quack grass?

2 months ago
1 Answer
  • AI-generated, Human-approved
    A: Yes, this product is a non-selective herbicide that will eliminate most plants it comes into contact with, including grasses. It is designed to kill weeds and grasses down to the root and is effective against over 100 different plants.
    2 months ago
    Helpful?

Q: When spraying poison ivy some of the RM 18 will get on the trunk or bark of trees. Will this kill the tree

2 months ago
1 Answer
  • AI-generated, Human-approved
    A: Yes, this product is a non-selective herbicide that will eliminate most plants it comes into contact with. It is important to be very careful not to spray any desirable plants or trees, as it kills everything it touches.
    2 months ago
    Helpful?

Q: I was looking for 2 4 d and was given this instead from tractor supply. It has completely killed my yard which was sodded with centipede. My question is will my lawn need to be resodded or is there a chance it'll grow back.

2 months ago
1 Answer
  • AI-generated, Human-approved
    A: It is likely you will need to resod, as this product kills weeds and grasses down to the root. However, it does not stay in the soil, and reviewers have reported successful re-seeding after use because fertile soil remains available for new plants.
    2 months ago
    Helpful?

Q: what's the mix ratio oz to a gallon water

2 months ago
1 Answer
  • AI-generated, Human-approved
    A: The recommended mix ratio is 6 ounces of concentrate per gallon of water. This 64-ounce bottle is a concentrated formula that can make up to 21 gallons of spray, treating up to 6,300 square feet.
    2 months ago
    Helpful?

Q: Can rm18 be used in landscaping

3 months ago
1 Answer
  • A: Yes but know it will kill what it touches.
    3 months ago
    Helpful?

Q: Is this safe around the edge of a pond?

4 months ago
1 Answer
  • A: Hello, thank you for your question. This product is generally not considered safe to use directly around the edge of a pond or other bodies of water.
    3 months ago
    Helpful?
1 - 10 of 42 Questions

Similar Items

Reviews

Rating Snapshot

Select a row below to filter reviews.
37 reviews with 5 stars.
11 reviews with 4 stars.
4 reviews with 3 stars.
0 reviews with 2 stars.
19 reviews with 1 star.

Overall Rating

3.7
21 out of 34 (62%) 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 has mixed reviews, with some customers reporting it effectively kills weeds and vegetation, while others found it completely ineffective. Positive reviews praise its quick results, especially in hot, dry climates. However, many negative reviews state the product did not kill any weeds or...
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

Wicked Stuff - NOT Fast!

2 years ago
I've now used the RM-18 in two different applications, and I have found it to be *extremely* effective, it kills everything you spray it on, without any ifs, ands, or buts. HOWEVER! It is *not* as fast as they say it is. In the first three days, I saw absolutely nothing happen, or only maybe the very slightest bit of graying on the edges. By the end of the first week, the sprayed area was looking very distressed and much of it was visibly dying or dead. By the end of the second week, absolutely everything in the sprayed zone was stone dead. For reference, I used a mix of 4.5oz per gallon of water, along with 3ml/gal of an indicator dye to make sure I got good coverage of all areas, and sprayed at about 1pm on a warm, sunny day for maximum impact. So this stuff does work, and it works very well! Just be patient, and the weeds will die off just fine.
4 people found this helpful
Show Reviews:

Most Helpful Critical Review

Waste

7 years ago
Took days for minimal results. Grass and small weeds are barely browning. Large weeds are unaffected. Will still have to make or buy something that works. Waste of time and money.
7 people found this helpful
Show Reviews:
  • weeds
  • effect on weeds
  • grass
  • instructions
  • results
  • price
  • directions
  • satisfaction
1 to 4 of 71 Reviews .
1 – 4 of 71 Reviews
Louisiana
Reviews 3

RM 18

7 days ago
The RM18 is awesome! Weeds show evidence of it working just hours later. I was able to pick this up at the store which made it really convenient.
SweepstakesYes

Yes, I recommend this product.

Texas
Reviews 2

Zero Action

28 days ago
Mixed at 6 ounces to the gallon in a 4-gallon backpack sprayer with surfactant, 5 days later, not one dead weed, sprayed on mostly small weeds not in a drought state, they are actively growing. Not even wilting, looks like I watered them if anything.

No, I do not recommend this product.

Review 1

Not effective.

a month ago
Used the product after much research. Mixed 2 gallons as per the instructions and sprayed away. It killed about 25% of the weeds and grass I used it on. Would not recommend. Buy the RM 43 and save yourself some time and money.
Response from Ragan and Massey:
a month ago
Ragan and Massey
Call us at 800-264-5281 if this is not working the way you thought. farmworks
Bowie, MD
Review 1

Does great if you mix less water

3 months ago
This product was recommended by a friend. I found it more effective not following the directions on the label. When you follow their mix, it does not work as fast killing weeds. One day after application, you're ready to pull the weeds.

Yes, I recommend this product.