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Q4 Plus Broadleaf and Crabgrass Herbicide

Usually Ships in 1-2 days
Protect cool-season turfgrass with Q4 Plus turf herbicide. This highly selective product eliminates weeds on both bluegrass and bermudagrass and keeps them healthy and protected from invasive weed species. You can use it to remove weeds on residential and recreational lawns and knock out target pests in cemeteries and other sites. It produces a quick visual response and is rain-fast in six hours. If you want to kill weeds and keep your lawn healthy and beautiful, treat it with Q4 Plus herbicide.
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Features and Specifications

Active Ingredient(s) 2,4-D, dimethylamine salt 11.81%, Dicamba, dimethylamine salt 1.49%, Quinclorac 8.43%, Sulfentrazone 0.69%
Weed Killer Barnyard grass, Bull Thistle, Chickweed, Clover, Crabgrass, Dandelion, Nutsedge
Sale Prohibited AK, HI, PR, MA, NM, NY,LA,TX, CA, WA
Shipping Rate Free
UPC 070251697878
GTIN
EPA Registration 2217-930

How Q4 Broadleaf and Crabgrass Herbicide Works

Q4 Plus Herbicide contains four active ingredients: quinclorac, sulfentrazone, dicamba and 2,4-D. These four ingredients create a powerful herbicide that provides total crabgrass and foxtail control in places such as home lawns and golf courses. It inhibits protox activity for the rapid decline and death of numerous broadleaf weeds. Q4 Plus herbicide comes in a water-based formula and applies easily to the target area with a sprayer.

 

Where to Use Q4 Plus Broadleaf Herbicide

Use Q4 Plus Broadleaf herbicide to protect cool-season turfgrass on home lawns, commercial landscapes and other sites to prevent unsightly weed growth. It targets weeds in public parks and recreational sites where weeds grow in the field and around flowerbeds. You can also use Q4 Plus to kill weeds on athletic fields and sports turf, including golf club greens and fairways. Applying this herbicide to sod farms helps to keep weeds from ruining profitable turf.

 

Q4 Plus Broadleaf Herbicide Target Weeds

Q4 Plus Herbicide specialized formula targets both large and smooth crabgrass as well as green, yellow and giant foxtail; it also kills yellow nutsedge in residential and commercial lawns. It is also an effective product for killing barnyardgrass, chickweed and clovers throughout open lawns and fields. Use Q4 to target even more weed pests such as:

  • Bull thistle
  • Dandelion
  • Ground ivy
  • Knotweed
  • Matchweed
  • Pigweed
  • Poison ivy
  • Ragweed
  • Signalgrass
  • Spurge
  • Thistle
  • Wild lettuce
  • Yarrow

 

Q4 Plus Turf Herbicide Features and Benefits

  • Kills common weed pests such as crabgrass, foxtail and nutsedge
  • Protects cool-season grasses from invasive broadleaf weeds
  • For use on Kentucky bluegrass, fescue and ryegrass
  • Contains four active ingredients for maximum weed control
  • Keeps weeds out of residential, ornamental, institutional and noncrop sites

 

Stop CrabGrass Growth in Your Lawn With Q4 Plus Broadleaf Herbicide

Q4 Plus Turf herbicide gives you a powerful way to kill crabgrass many broadleaf weed species throughout home lawns, business landscapes, recreational sites and athletic fields. Thanks to its four active ingredients, you can target invasive broadleaf weeds and protect cool-season grasses during susceptible times. Although Q4 Plus offers maximum weed control, you should avoid using it near aquatic sites to prevent killing fish and other water life. When you need a potent herbicide for use in residential and commercial settings, rely on the power of Q4 Plus herbicide.

DIRECTIONS FOR USE:

It is a violation of Federal law to use this product in a manner inconsistent with its labeling. Do not apply this product in a way that will contact workers or other persons, either directly or through drift. Only protected handlers may be in the area during application. For any requirements specific to your State or Tribe, consult the agency responsible for pesticide regulations.

LABEL:

For additional information on this product please reference the CDMS label database listed below

SDS/Labels

QUESTIONS & ANSWERS

Ask a Question
  • how soon after application can new grass seed be planted?

    6 weeks

  • If I planted grass seed already can I put this product down?

    Hello Sir

    You can put Q4 down 6 weeks after you seed 

  • At what temperature can you apply this product

    Please google Q4 plus label for the best time to apply this product

  • What is the mixing rate

    The mixing rate for Q4 Plus Turf Herbicide depends on whether you're doing a spot treatment or a broadcast application, and whether you have cool-season or warm-season turf. For spot treatments, 2.6 to 3.0 fl oz of Q4 Plus per gallon of water should be used for cool-season turf, while 1.84 to 2.57 fl oz should be used for warm-season turf. For broadcast applications, 7 to 8 pints per acre is recommended for cool-season turf, and 5 to 7 pints per acre for warm-season turf

Customer Reviews
5.0 Based on 22 Reviews
5 ★
95% 
21
4 ★
5% 
1
3 ★
0% 
0
2 ★
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Filter Reviews:
DA
05/13/2025
Dick A.
United States

Satisfied Customer

Prompt delivery of product at reasonable price

A
03/23/2025
Anonymous
United States

I applied it 4 days ago,waiting for results.

A
10/05/2024
Anonymous
United States
I recommend this product

Awesome product

This has been an awesome product to get weeds out of my beds.

JG
04/12/2024
John G.
United States
I recommend this product

Q4plus

Awesome product

GT
03/13/2024
Godon T.
United States
I recommend this product

Q4 how do you mix for a 1.5 Gal hand sprayer to **** nutsedge & crabgrass

I need to know how to mix this Q4 for a 1.5 Gal hand sprayer to **** crabgrass & nutsedge . I live in Michigan and we still have snow on the ground

A
09/10/2023
Anonymous
United States
I recommend this product

Q4

Shipping time was good.. Product as described.. Packaging good. Great price

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