SKU: 72339940100
tough 5 ec herbicide

tough 5 ec herbicide Cornerstone 5 Plus Weed Killer Herbicide

Sale price$19.30 Regular price$21.45
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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

tough 5 ec herbicide Cornerstone 5 Plus Weed Killer HerbicideHow Cornerstone 5 Plus Herbicide Works Containing glyphosate as the active ingredient, Cornerstone 5 Plus Herbicide weed killer targets hard to control weeds such as dogfennel and milkweed. It's mode of action easily absorbs into the plant tissue and goes from the shoots to the roots, disabling amino acid synthesis and killing the weed. However, it doesn't kill the weeds on contact. Rather, it's a slow yet effective process. In addition, it kills and

How Cornerstone 5 Plus Herbicide Works

Containing glyphosate as the active ingredient, Cornerstone 5 Plus Herbicide weed killer targets hard-to-control weeds such as dogfennel and milkweed. It's mode of action easily absorbs into the plant tissue and goes from the shoots to the roots, disabling amino acid synthesis and killing the weed. However, it doesn't kill the weeds on contact. Rather, it's a slow yet effective process. In addition, it kills and controls the weeds without killing your desirable vegetation.

 

Where to Use Cornerstone 5 Plus Herbicide

Use Cornerstone 5 Plus Herbicide for postemergent weeds and grasses on noncrop sites such as lawns and industrial landscapes. You can also use it for pre-emergent and preplant burndown, including postemergence on Roundup Ready-treated pre- and postharvest crops. It mixes and applies easily with standard application equipment and provides exceptional crop safety without any carryover concerns.

 

Cornerstone 5 Plus Herbicide Target Weeds

Targeting more than 100 weeds and grasses, Cornerstone 5 Plus Herbicide is the ideal herbicide for controlling tough infestations. It kills ragweed, sunflower, thistle and pigweed when you apply it as directed. Cornerstone 5 Plus also controls common rye, shattercane and starbur at the source. You can also use this powerful herbicide to kill and control:

  • Barnyardgrass
  • Carpetweed
  • Crabgrass
  • Fleabane
  • Goosegrass
  • Henbit
  • Johnsongrass
  • Knotweed
  • Nightshade (black, hairy)
  • Ryegrass
  • Smartweed
  • Velvetleaf
  • Wild oats
  • Yellow rocket

 

Cornerstone 5 Plus Herbicide Features and Benefits

  • Controls 100 or more annual and perennial broadleaf weeds and grasses
  • For use on noncrop and treated crop sites when used as directed
  • Contains glyphosate for systemic weed and grass control
  • Long-lasting, broad-spectrum herbicide
  • Flexible window of application

 

Tips According to the Label

  • Use with a surfactant for optimum performance.
  • Apply with an adjuvant to lock in spray coverage and lock out drift.
  • Avoid contact with foliage, green stems and exposed nonwoody roots of desirable plants and trees.

 

Cornerstone 5 Plus Herbicide Kills Broadleaf Weeds and Grasses

Fighting weed growth takes a lot out of you, especially in large fields and crop areas. With Cornerstone 5 Plus herbicide, you can target many different species with one application. You can also combine it in the tank with an adjuvant or a surfactant for even more control. Though it's tough on bothersome weeds, it's safe on crops and lawns when it's applied as directed. For maximum weed control, turn to Cornerstone 5 Plus weed killer.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 72339940100

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4.4 ★★★★★
Based on 14 reviews
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Verified Purchase
Dustin
Waukegan, US
★★★★★ 5
Works if you need help. Not a miracle in a bottle.
Size: 1 Count (Pack of 1)
It has worked every time I've used this product. Won't fix a damage catalytic converter but will help you pass the test if your car almost passed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
L
Verified Purchase
Leslie Price
Lowell, US
★★★★★ 5
Worked like a charm.
Size: 1 Count (Pack of 1)
Used it as directed. Down to an eighth of a tank. Poured it in and added enough gas to get back to one half a tank. Wanted to get it mixed in really well. Immediately jumped on the interstate and ran 75 MPH for 40 miles. Stopped and filled the tank and when I restarted the engine, the light was off. Coincidence? Not a chance. Light had been on continuously for weeks. AutoZone said I needed a catalytic converter. Nope. One thing I found out the hard way. If your gas filler has a flap at the top, make sure it is easy to push aside. Mine had a little release button near the top that the filler hose would depress before the flap would release. Dumped the first bottle right on the ground. Twelve bucks wasted. No one to blame but me, I guess. Still a bargain, even at twice the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
B
Verified Purchase
Brenda A DeRouen
Charlottesville, US
★★★★★ 1
Before use on March 15 two days later March 17 engine light still on
Size: 1 Count (Pack of 1), Size: 1 Count (Pack of 1)
I read the specs on this product and it was guaranteed to cleanse as well as turn engine light off in vehicle. I received it March 14.2026 and used it on March 15.2026 I took a picture on Sunday before I entered it into the gas tank engine light was on at that time. Today is March 17.2026 and engine light is still on. The truck was driven for one hour on the 15th 45 minutes on the 16th and 50 minutes on 17 March. Still the engine light is on. Got home parked the vehicle took a picture again to show engine light is still on product guaranteed it was shut it off, but unfortunately product does not work.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
A
Verified Purchase
Amazon Customer
San Leandro, US
★★★★★ 4
Good stuff
Size: 1 Count (Pack of 1)
I've used and it's worked for emissions for me and that's with having check engine light on..use stuff,drive around a bit,clear code drive to emissions and should b good unless got serious problems. It's good to use 1 or 2 times a yr if high mileage vehicle.
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Reviewed in the United States on January 1, 2025
A
Verified Purchase
A.U.
Massapequa, US
★★★★★ 5
It works!
Size: 1 Count (Pack of 1)
My 2005 Jetta failed the inspection and my mechanic said (after clearing the engine light) that I should drive the car for 20 min highway and 20 local. We've tried that the whole day but out of three lights on his device only 1 went away. Next day the light engine came back. After not being happy with the explanation offered by him (a family friend) that I should keep driving it until we get lucky I went online and found CRC 05063. Followed the instruction (one bottle on full tank of gas). Before my tank was under 3/4, engine light went off!! At half tank I went and did the inspection - IT PASSED! I am really impressed! Update August 2015! I have been using this product for 2-3 years now and if it is not working for you please read. In July I have used the first bottle and took my 2005 Jetta for inspection. It failed. Ordered a second bottle and it failed again. My mechanic said keep driving. Did 200 miles in one day and nothing. Decided to take matters in my own hands and ordered Autel MaxiScan MS300 ($18, it allows you to read and delete codes). There were two faults - EVAP and 2nd something about Oxygen. Went online and this is the first time I heard about driving cycles. These are steps that you have to follow so that your car's computer can start measuring all the parameters needed for the test. Driving cycles are not exact science but I tried to follow the instructions as much as I could and after just 20 minutes (10min city and 10min highway) ALL the parameters were set and I passed the emission test with flying colors! So, just before you give a comment about CRC like "tried and didn't work" be aware that there are other things you have to take into account.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 1, 2013

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