SKU: 89308893345
cornerstone plus herbicide 2.5 gal

cornerstone plus herbicide 2.5 gal Cornerstone 5 Plus Weed Killer Herbicide

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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

cornerstone plus herbicide 2.5 gal 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
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Exchange/Return Notes
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SKU: 89308893345

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Amazon Customer
Waukegan, US
★★★★★ 3
1" fittings and decent quality
Size: 16'' x 7.87''
Difficult to tell from any description but these are 1" pipes and fittings. You can find this out if you look at product pictures and can see the 1 printed on a fitting or two that is it. I was trying to match existing pipes that were 3/4 inch so disappointed when they arrived. these are decorative as well. Not the same quality as actual black iron pipe you get at any home improvement store. Good enough for shelving and legs on furniture but I definitely would not stand on these or make a chair or stool that is meant to hold someone's weight. Fit and finish about what you would expect cheap and the flanges are threaded crooked like others have stated. Also when they state the sizes and lengths they do not take into account the fittings so everything will be longer slightly.
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Reviewed in the United States on February 7, 2026
A
Verified Purchase
A New Level
Bozeman, US
★★★★★ 5
Good price for what I needed
Size: 16'' x 43''
Perfect for the coffee table I was working on, adjust to the size I needed as I only used 2 middle pipes for a 36” table top. Good durable pipes. The down come slightly scratched up as they weren’t packaged in anything protective so I ended up spraying them with a matte black.
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Reviewed in the United States on August 28, 2025
M
Verified Purchase
Michelle bullard
Pawtucket, US
★★★★★ 5
Stable and easy to assemble
I used these to support a heavy piece of countertop would to create a side table. Looks great and holds steady.
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Reviewed in the United States on February 15, 2023
C
Verified Purchase
Charles Clerici
Chelsea, US
★★★★★ 5
Great
All pieces cut to perfection, went together perfectly
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Reviewed in the United States on October 22, 2023
J
Verified Purchase
judith stevens
Draper, US
★★★★★ 1
Some of the components are plastic
This is not a heavy duty application what so ever . One of the flanges broke . We do not recommend this product
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Reviewed in the United States on July 5, 2024

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