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3.8 out of 5 stars. 85 reviews
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RM18 1 gal. Fast-Acting Grass and Weed Killer with Diquat

3.8

(85 Reviews)

|

Item # 126692399

$64.99
A woman outside with a dog
A woman outside with a dog

RM18 1 gal. Fast-Acting Grass and Weed Killer with Diquat

RM18 1 gal. Fast-Acting Grass and Weed Killer with Diquat

Item # 126692399

RM18 RM18 1 gal. Fast-Acting Grass and Weed Killer with Diquat
RM18 RM18 1 gal. Fast-Acting Grass and Weed Killer with Diquat

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Shopping at

Grassland (franklin) TN

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When you want fast results with minimal prep, the Ragan & Massey 1 gal. 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. Order a bottle of Ragan & Massey weed killer today.

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

  • Concentrated herbicide formula makes up to 42 gal. to provide unwanted brush, grass and broadleaf weed control
  • This weed and grass killer treats up to 12,600 sq. ft.
  • Produces visible results in 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 1 gal. of weed killer
  • For best results, apply the herbicide on a warm, sunny day when wind is calm and weeds are actively growing
  • For easy to kill weeds such as small seedlings, use the lowest recommended rate (3 fl. oz. in 1 gal. of water); use the maximum recommended rate for larger, harder-to-kill weeds (6 fl. oz. in 1 gal. of water)

Q&As

1 - 10 of 46 Questions

Q: how long can unused portions of concentrate be stored?

4 days ago
1 Answer
  • A: Howdy neighbor! Unused concentrate left inside the original bottle can be safely stored for 3 to 5 years if kept in a tightly sealed container away from extreme heat and freezing temperatures. However, if you have already mixed the concentrate with water inside a pump sprayer, that diluted mixture must be used within 24 hours, as the active ingredients will rapidly break down and lose their weed-killing potency.
    a day ago
    Helpful?

Q: What are the differences between RM18 and RM43?

6 days ago
1 Answer
  • A: Howdy neighbor! The main difference is that RM18 Fast-Acting Weed & Grass Killer is designed to clear an area quickly so you can safely replant it the next day, while RM43 Total Vegetation Control works as a long-term ground sterilizer that keeps anything from growing for up to one year.
    5 days ago
    Helpful?

Q: Can you use this around established trees

a month ago
1 Answer
  • AI-generated
    A: Yes, this product can be used along fence lines and buildings, but you should avoid contact with desirable plants. One reviewer noted that the spray killed sapling fruit trees even when applied four feet from the trunk, while another found it ineffective around established trees and bushes at a specific dilution.
    a month ago
    Helpful?

Q: Concentrate; what’s the ratio?

3 months ago
1 Answer
  • AI-generated
    A: For easy-to-kill weeds, use 3 fl. oz. per 1 gallon of water. For larger or harder-to-kill weeds, use the maximum rate of 6 fl. oz. per 1 gallon of water. This 1-gallon bottle of concentrate can make up to 42 gallons of spray.
    3 months ago
    Helpful?

Q: Is this product safe around pollinators?

10 months ago
1 Answer
  • A: Hello, thank you for your question. Please reach out to RM18 directly for assistance with this specific inquiry. ***RM18*** https://www.raganandmassey.com/ support@raganandmassey.com (800) 264-5281
    10 months ago
    Helpful?

Q: Does this kill creeping charly

a year ago
1 Answer
  • A: Yes
    a year ago
    Helpful?

Q: Can i use this on wildflowers?

a year ago
1 Answer
  • A: Hi, Yes, this can be used to eliminate wild flowers.
    a year ago
    Helpful?

Q: Should I add a surfactant to this product?

a year ago
1 Answer
  • A: You can and perhaps see more widespread performance.
    a year ago
    Helpful?

Q: Can it be used in and around vegetable gardens

a year ago
1 Answer
  • A: It will kill what it touches but has no residual.
    a year ago
    Helpful?

Q: Why does MS18 say it kills for up to six months but above it says it kills for one month?

a year ago
1 Answer
  • A: RM18 has no residual. RM43 does.
    a year ago
    Helpful?
1 - 10 of 46 Questions

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Reviews

Rating Snapshot

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48 reviews with 5 stars.
12 reviews with 4 stars.
4 reviews with 3 stars.
4 reviews with 2 stars.
17 reviews with 1 star.

Overall Rating

3.8
31 out of 46 (67%) reviewers recommend this product

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Summary of Reviews

AI-generated from customer ratings & reviews, and may include incentivized reviews.
This weed killer product has mixed performance. Some users report it is effective at quickly killing weeds and stubborn growth, especially in hot, sunny conditions. However, many others found it ineff...
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This summary is AI-generated from ratings and reviews across multiple languages.
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  • effect on weeds
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  • grass
  • instructions
1 to 4 of 85 Reviews .
1 – 4 of 85 Reviews
Amarillo, Texas
Review 1

RM18 Weed Killer

2 days ago
Fantastic product.

Yes, I recommend this product.

Deming nm
Review 1

Not satisfied

21 days ago
I have used this product in hopes it would kill everything I sprayed I don’t recommend using this product no matter how you mix it plants still grow and keep growing. I am losing money and clients.

No, I do not recommend this product.

Response from Ragan and Massey:
7 days ago
Ragan and Massey
Call us at 800-264-5281 and lets see what is going on. farmworks
Review 1

Does not work

2 months ago
Tried to kill a few weeds but this will not kill anything. I think a few weeds grew in the middle of the night after we sprayed. I’ve sprayed it 3 more times just to make sure. This morning the grass and weeds still there.

No, I do not recommend this product.

Response from Ragan and Massey:
2 months ago
Ragan and Massey
Give us a call at 800-264-5281 if your weeds are not dying. farmworks
Reviews 2

Grass be gone

2 months ago
Ive been looking for a product that would eliminate the grass in my landscaping rocks.. and it works great.
SweepstakesYes

Yes, I recommend this product.