SKU: 31257646412
quackgrass herbicide

quackgrass herbicide Prime Source

Sale price$25.73 Regular price$28.59
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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Description

quackgrass herbicide Prime SourceQuintessential takes quinclorac performance to the next level and is an excellent choice if you are going after crabgrass that has invaded your lawn. This is a selective, post emergent herbicide that can be safely applied to many types of turf to control a variety of broadleaf and grassy weeds, including crabgrass, foxtail, signal grass, and torpedo grass. Up to 90 day control for both broadleaf and grassy weeds Active Ingredients is Dimethylamine

Quintessential™ takes quinclorac performance to the next level and is an excellent choice if you are going after crabgrass that has invaded your lawn. This is a selective, post-emergent herbicide that can be safely applied to many types of turf to control a variety of broadleaf and grassy weeds, including crabgrass, foxtail, signal grass, and torpedo grass.

  • Up to 90-day control for both broadleaf and grassy weeds
  • Active Ingredients is Dimethylamine salt of Quinclorac 18.92%
  • Unique, patent-pending formulation powered by H-Value Technology, a proprietary performance additive that increases efficacy
  • Great for controlling crabgrass, including the mid-tiller stage of growth
  • Available in multiple sizes *

Product Description:

Quintessential alters the formulation of quinclorac in a way that improves the absorption of the product into the plant. That means faster activity and higher rate load in the targeted weed, as well as improved performance in drought stress or rainfast situations. And unlike any other herbicide on the market, Quintessential demonstrates improved control of crabgrass at all growth stages, including the problematic 3-5 tiller stage.

This product can be applied to both residential and non-residential turf. Selective control means it doesn’t harm turf.

Quintessential can be applied from seven days prior to seeding and up to twenty-eight days after selected weeds have emerged. The use of methylated seed oil, such as Duo Stick Select is recommended to enhance the effectiveness of the product. If you cannot get methylated seed oil, a non-ionic surfactant can be used.

Target pests include Barnyardgrass, Black medic, Foxtails, Clover, Crabgrass (large & smooth), Daisy, Dandelion, Morningglory, Wild Violet, and more.

*Size options and coverage: 

  • 7.5 oz bottle = covers up to 5,000 sq ft.
  •  64 oz bottle = covers up to 42,600 sq ft.

Application Information:
This is a liquid concentrate product you mix with water in a battery sprayer or pump sprayer. **You will also want to utilize a surfactant along with this product.

Quintessential can be used on all cool-season and some warm-season grasses, see the list below:

  • Cool-Season Lawns - Kentucky Bluegrass, Turf Type Tall Fescue (all fescues), Ryegrass.
  • Warm-Season Lawns - Bermuda, Zoysia,
  • Hybrid Bermuda could see some collateral stunting of growth

NOTE: Not for use with Centipede, Bahia, St Augustine grasses

 Coverage

7.5 oz bottle covers up to 5,000 sq ft at the rate of 1.45 oz per 1,000 sq ft


64 oz bottle covers up to 42,600 sq ft at the rate of 1.45 oz per 1,000 sq ft

Application  Details

Mix 1.45 oz per gallon of water in a backpack/pump sprayer and spray that evenly across 1,000 sq ft of lawn

In most cases, you should only have to spot spray or zone spray unless you have a REALLY big problem with crabgrass!

Water-In  Instructions

No watering or rainfall within 24 hours after application

If rainfall does not occur in 2 to 7 days after application, irrigation of at least 1/2 inch is desirable.

Product Resources:

Label/SDS: Quintessential Info 
Package Includes:  (1) 7.5 oz bottle or (1) 64 oz bottle based on selection.
Storage: Store in a cool dry place away from direct sunlight. The product will store for 2 years under normal conditions.

Shipping Information:

Shipping Costs

Included for most states within the U.S.
NO P.O. Boxes

State Restrictions
Alaska (AK), California (CA) and Hawaii (HI)
Stickers

Sorry, no stickers with this item

Typical Delivery Time

4 - 7 business days

Product Type

Liquid Concentrate

Cancel | Return | Exchange

All sales are final; no cancellations, returns, or exchanges


Some products may not be registered for sale or use in all states or counties and/or may have state-specific use requirements. This information is for reference only. It is the responsibility of the user to verify the product is registered and appropriate for use in a given state.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • 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: 31257646412

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Doctor Spin
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★★★★★ 5
Excellent blazer!
Size: X-Large, Color: Dark Grey
Very nice fabric. Comfortable throughout chest arms and waist. Very nice shade of grey that goes with everything! Fit was perfect. It claims to be washable but I prefer dry cleaning. All Stitching is hidden and it is fully lined. I wear blazers daily for work and this one is great especially for the price.
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Reviewed in the United States on April 6, 2026
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MiniKa
Massapequa, US
★★★★★ 5
Perfect fit for a medium build 5ft 6
Size: Medium, Color: Light Grey
I am happy with this grey color Blazer. The fit is spot on- I am 5’6” medium build, and it fits comfortably without feeling too tight or too loose. The material feels high quality and has a nice weight into it. Making it look more premium than expected. It’s also very comfortable to wear for extended periods, whether for work or going out. Overall great value and a solid addition to my wardrobe. Would definitely recommend!
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Reviewed in the United States on May 14, 2026
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Rob Douglas
Whiting, US
★★★★★ 5
Great jacket!
Size: 4X-Large, Color: Dark Blue
Nice jacket for warmer weather, very comfortable, fit me well. I'm a big guy and wear a 54 regular in tailored sport coats. The 4XL fit nearly identical to a 54 regular. Adds some class to a nice outfit without making it formal, which is exactly what I was looking for.
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Reviewed in the United States on May 12, 2026
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Professor H. F.
Los Angeles, US
★★★★★ 4
Comfortable & Right Fit
Size: X-Large, Color: Light Grey, Size: X-Large, Color: Light Grey
Light Grey, XL *Item returned before use due to color change* Quality every day blazer. Good material didn't feel cheap or come with lose threads. When buttoned the blazer laid flat, I had room in chest and stomach but didn't seem baggy. Shoulders fit across without pinching or buckling around pads. Arm length didn't hang past wrist when arms were at my side and also didn't pull too high when raising. My measurements: More of a solid, muscular build but still very average. 6' 215# Chest 44" (circumference) Shoulders 20" (length taken from back) Waist: 38" (circumference) Arms: 26" (length taken down outside of arm)
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Reviewed in the United States on May 3, 2026
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Audiophile 1
Birmingham, US
★★★★★ 5
Fits well
Size: Large, Color: Black
I’m a 42 long in a suit, broad shoulders and this fit very well. Great value for the price especially on sale. Lightweight and stylish. This is my second purchase of the same product in a different color
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