Loading...

Hi-Yield Super Concentrate Killzall Weed & Grass Killer

Hi-Yield Super Concentrate Killzall Weed & Grass Killer is a professional-grade, non-selective herbicide with 41% Glyphosate. It helps control a wide range of weeds including crabgrass, dandelion, clover, and nutsedge, as well as invasive plants like kudzu and poison ivy. Ideal for use along fence lines, driveways, walkways, and garden prep areas. Pet safe when dry, this concentrate offers a versatile, cost-effective solution for managing tough weeds across your property.
In stock
SKU
HYSCKillzall

Starting at $27.30

Grouped product items
Product Name Price/Ea. Quantity
Hi-Yield Super Concentrate Killzall Weed & Grass Killer- 32oz
Hi-Yield Super Concentrate Killzall Weed & Grass Killer- 32oz
$27.30
Hi-Yield Super Concentrate Killzall Weed & Grass Killer- 1gal
Hi-Yield Super Concentrate Killzall Weed & Grass Killer- 1gal
$59.50
Total: $0.00

Pro Tips
Pro Tips & Quick Tricks

Avoid mowing for several days before and after application to maximize leaf surface area.


Product Information

Hi-Yield Super Concentrate Killzall

Hi-Yield Super Concentrate Killzall Weed & Grass Killer is a non-selective, systemic herbicide concentrate designed for total vegetation control.

This professional-strength formula contains 41% glyphosate and a double-surfactant system that helps the spray spread, stick, and penetrate leaf surfaces for faster uptake and dependable results.

Note: This non-selective product will injure or kill most vegetation it contacts.

Why Use

  • Systemic, root-killing action helps prevent regrowth
  • Controls annual and perennial weeds, grasses, brush, and vines
  • Double-surfactant formula improves coverage and absorption
  • Fast drying and rainfast in about 2 hours
  • Concentrated formula treats large areas economically
  • Ideal for lawn renovation and site preparation projects

When to Use

  • When weeds and grasses are actively growing for best results
  • During warm weather with temperatures above about 60°F
  • On calm days to minimize drift
  • When rain is not expected for several hours
  • Before weeds flower and produce seeds for long-term control

Retreatment

  • Repeat applications may be required for tough perennial weeds, brush, or dense growth.
  • Allow plants to regrow to an active growing stage before retreating.
  • New weeds emerging from seed after treatment may require additional applications.
  • For lawn renovation or site prep, wait until complete kill is observed before replanting.
  • Always follow label directions regarding retreatment timing.

Pro Tips

  • Use a spray shield or cardboard barrier near desirable plants.
  • Apply during dry conditions so the product can fully absorb.
  • For stubborn weeds, treat when plants are actively growing and not drought-stressed.
  • Mark treated areas to prevent accidental overspray.
  • Always read and follow the product label for complete instructions and restrictions.
Specifications
Packaging 32oz or 1 Gal
Product Label Hi-Yield Super Concentrate Killzall Weed & Grass Killer Label
Safety Data Sheet (SDS) Hi-Yield Super Concentrate Killzall Weed & Grass Killer SDS
Target Pests

Target Weeds and Vegetation Controlled

  • Annual grasses (crabgrass, foxtail, barnyardgrass)
  • Perennial grasses (bermudagrass, quackgrass, johnsongrass)
  • Broadleaf weeds (dandelion, plantain, clover, chickweed, ragweed)
  • Noxious and invasive weeds
  • Woody brush and vines (poison ivy, kudzu, briars, brushy growth)
  • Unwanted vegetation in gravel, cracks, and bare-ground areas
Active Ingredient(s) Glyphosate (Isopropylamine Salt)...41.0%
Use Sites
  • Fence lines and property edges
  • Driveways, sidewalks, patios, curbs, and gravel areas
  • Around buildings, barns, sheds, and foundations
  • Landscape beds (spot treatment only)
  • Garden plot preparation before planting
  • Lawn renovation or removal of existing turf

Do not use in established lawns or where spray could contact desirable plants.

Yield One gallon of mixed spray typically treats about 300 sq ft depending on vegetation density.
Mixture Read Labels For mixing instructions
Application
  • Mix concentrate with water according to label directions.
  • Typical mix rates per gallon of water:
    • General weeds: 3 tablespoons
    • Tough weeds / brush: 5 tablespoons
  • Apply with a pump sprayer, backpack sprayer, or tank sprayer.
  • Spray actively growing foliage until evenly wet but not dripping.
  • Avoid spray drift onto desirable plants, turf, or ornamentals.
Not Available In AK, HI

Product Videos

Frequently Asked Questions

Reviews

Write Your Own Review
You're reviewing:Hi-Yield Super Concentrate Killzall Weed & Grass Killer
Your Rating
What's this? Check "Remember Me" to access your shopping cart on this computer even if you are not signed in.