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Pramitol 25E Weed Killer

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Pramitol 23E is an industrial weed killer that acts as a soil sterilant preventing plant growth for up to 1 year from application. It is an excellent product for rock beds, driveways, construction sites, pipe yards and other commercial areas. To be effective Pramitol should be applied with a lot of water to allow it to soak 6" down into the soil.

Target Pests

Pramitol 25E is a ground sterilizer and will control all vegetation. Nothing will grow where it is applied for up to 1 year. Pramitol will kill tree roots and is the best grass and weed killer. It is non selective meaning it will kill all vegetation.

For Use In

Pramitol 25E is for use in commercial areas like storage facilities fence lines tank farms railways pipelines and lumber yards. A common use of Pramitol is to control weeds and other vegetation under driveways and parking lots. Pramitol is not recommended for use in residential areas.


Although Pramitol 25E has considerable activity through foliar contact, much of its activity is through roots; therefore, its effectiveness is dependent on rainfall to move it into the root zone. Very dry soil conditions and lack of sufficient rainfall may result in poor weed control.

For best results, apply Pramitol 25E before weeds emerge or when weeds are young and actively growing. For control of annual and susceptible perennial weeds and grasses such as downy bromegrass, oatgrass, goosegrass, quackgrass, puncturevine, goldenrod, and plantain: Broadcast 4.0 - 6.125 gals. Pramitol 25E in 50 - 100 gals. of water per acre. For control of hard-to-kill perennial weeds and grasses such as johnsongrass, bindweed, and wild carrot: Broadcast 7.5 - 10 gals. of Pramitol 25E in 50 - 100 gals. of water per acre.

For faster top-kill of existing vegetation, apply Pramitol 25E in diesel oil, fuel oil, or weed oil. Use oils at rates of 100 - 200 gals. per acre. Tall, dense vegetation such as johnsongrass will generally require 150 or more gals. of oil per acre for thorough coverage.

When applying Pramitol 25E to a small area with backpack or pumpup sprayers with capacities of 1 - 3 gals., calibrate the sprayer so that 1 gal. of water covers 500 sq. ft. Then mix 1/2 - 7/8 pt. Pramitol 25E with water to obtain a total volume of 1 gal. and apply uniformly over a 500-sq.-ft. area. For hard-to-kill perennial weeds and grasses, use the higher rate. If green foliage is present, part or all of the water can be substituted with oil to provide burndown. To get the proper Pramitol application rate for your lawn, please refer to the product label.

Under Asphalt: Pramitol 25E may be applied to the ground before laying rapid-, medium-, or slow-curing asphalt coatings such as those used on parking lots, highway shoulders and median strips, roadways, and other industrial sites. Pramitol 25E should be applied just before laying of the asphalt coating to prevent possible lateral movement of the herbicide by rainfall or other mechanical means. Sprayers should be equipped to provide continuous agitation of the spray mixture during application to ensure application of a uniform spray emulsion. Apply Pramitol 25E uniformly at the rate of 7.8 gals. per acre (23.0 fl. oz. per 1000 sq. ft.) in a minimum of 100 gals. of water. Use the lower Pramitol application rate to control annual and susceptible perennial weeds and grasses such as downy bromegrass, oatgrass, goosegrass, quackgrass, puncturevine, goldenrod, and plantain. Use the higher Pramitol application rate to control hard-to-kill perennial weeds and grasses such as johnsongrass, bindweed, and wild carrot.

Coverage Area

One quart of Pramitol will treat up to 2000 square feet

Time to Kill

Pramitol will work within 2 weeks. For faster results mix a glyphosate product or other systemic herbicide for immediate kill of vegetation.

Mix Rate

Pramitol 25E can be applied before or up to 3 months after weed emergence. Application rates vary from 4 - 10 gals. of Pramitol 25E per acre depending on climatic conditions, soil type, the weeds present, and the stage of growth of the weeds. In the following Pramitol application rate recommendations, the higher rates are intended for use on heavier soils where weed growth is heavy and where rainfall is expected to be relatively high. The higher rates should also be used where longer residual control is desired in regions with a long growing season.

Active Ingredient

Pramitol 25% (Prometon Salts)

Pramitol 25E Weed Killer

Product Q & A

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Browse 8 questions Browse 8 questions and 7 answers
How long will it remain effective while waiting for rain to wash it in??
Cody on Jul 9, 2016
How much Pramitol 25e per gallon of water?
Jay on Feb 5, 2017
BEST ANSWER: 1/2 to 7/8 pint to a gallon of water to cover 500 feet. Harder to kill weeds use the higher rate.
So---10 gal sprayer =how many ounces Pramitol ?
Jerry on Jun 1, 2017
BEST ANSWER: 6.4 ounce per gallon of water for broadcast application.
How long will PRAMITOL be detected in the soil after spraying? I sprayed my granite soil in the mountains of NW AZ 2 years ago. Am in a lawsuit w a whackjob neighbor who accused me of spraying her "strawberries". She had a huge pot patch growing.
Doc on Sep 14, 2016
BEST ANSWER: Pramitol should only have residual for up to 1 year. That is the labelled length of the residual. In AZ it might last a little longer because of the lack of rain but it is not going to last 2 years.
Calvin on Jul 9, 2016
BEST ANSWER: As low as 23 fluid ounces to cover a 1,000 square feet. 7.8 gallons per acre with 100 gallons of water.
how to clean out your tank sprayer after using Pramitol?
A shopper on Feb 26, 2018
BEST ANSWER: I bough a $10 tank sprayer from WM and only use it for spraying Pramitol or herbicides.
Will pramitol damage granite or marble headstones?
Fran on May 5, 2017
BEST ANSWER: Pramitol should not damage granite or marble, but it would be recommended to check before applying to these surfaces.

1 answers
Robert on Aug 26, 2016
BEST ANSWER: 23 ounces per 1,000 square feet of water to 1 gallon of water.

Customer Reviews

4.6 / 5.0
9 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Wonderful ground sterilizer
Keeping up with the weeds is not so much a problem after using Pramitol on the areas we want to keep bare. Been using this for quite awhile.
October 12, 2017
6 months ago
September 6, 2015
Pramitol 25e
Best price and free shipping on Internet!
June 18, 2015
Product review
Works as described. I also mixed in a 41% to add to the kick
April 8, 2015
pramitol 25e
it is working great
August 21, 2013
PAvers clearance
I used it on the pool pavers. It does the job but it does not seem to last as claimed.
August 1, 2013
21/2 gal. Pramitol 25E
The jug was leaking from under the seal, but no harm done. It was a small leak but messy to clean up.
June 23, 2013
easy and works
We use this every year and have yet to have a problem.
April 25, 2013
Excellent Bare Ground Herbicide
Use this per product label and kiss any plant growth good-bye until well into next year. Thanks, epestsolutions, for fast, affordable product service!
August 16, 2010

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