SKU: 74135961700
rt 540 herbicide

rt 540 herbicide Quintessential Crabgrass Control

Sale price$22.00 Regular price$24.44
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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3

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Description

rt 540 herbicide Quintessential Crabgrass ControlQuintessential 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

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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]
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SKU: 74135961700

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kristen mcintyre
Phoenix, US
★★★★★ 5
Study and affordable IPhone case A16
Color: A-Pink, Color: A-Pink
10 out of 10 I highly recommend this Moko iPad case A16 11th and 10th generation case it is stylish and durable and most very affordable. You can take it with you while on the go! Has different colors to choose from.
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Reviewed in the United States on March 1, 2026
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Nathalie
New York, US
★★★★★ 5
Love the color
Color: A-Pink
Amazing product!
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Reviewed in the United States on April 8, 2026
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Lisa Q.
Massapequa, US
★★★★★ 5
Works great
Size: For iPad 11th A16 11 inch /10th Generation 10.9", Color: Black
Lights are pretty, good quality, works great and durable. Worth the money.
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Reviewed in the United States on May 20, 2026
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Tia
Lexington, US
★★★★★ 5
Quality , stylish and cute with protection all in one. Buy it. You won’t regret it.
Size: For iPad 11th A16 11 inch /10th Generation 10.9", Color: Watermelon Red, Size: For iPad 11th A16 11 inch /10th Generation 10.9", Color: Watermelon Red
I love this case and keyboard. It is light weight and best of all it has the swivel stand so the iPad can be used vertical or horizontally. I also love the fact that I can change the colors of the key pad. It has backlight for night typing as well. The magnetic keyboard stays on even if I pick the iPad up to move it quickly so the magnetic hold is good. I feel it is of good quality and should be easy to clean. It was easy to set up to BlueTooth which helped me out. I ordered a pink case so it matches my pink iPad. I believe it is worth the money as it is easier to type on a keyboard. I. Love the fact that I can turn the iPad horizontally and close the case all within a matter of a couple of seconds. The keyboard fits nicely over the iPad itself. The magnetic closure on the case is strong. There are two slots for the iPad to sit in. They are not deep but they work fine and I have never had the iPad fall out of them. The entire case as well as the keyboard appears to be sturdy and well made.
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Reviewed in the United States on March 27, 2026
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Thams Fleurimont
Louisville, US
★★★★★ 5
Love it!
Size: For iPad 11th A16 11 inch /10th Generation 10.9", Color: Watermelon Red, Size: For iPad 11th A16 11 inch /10th Generation 10.9", Color: Watermelon Red
Fits perfectly, keyboard works great, and the touchpad is smooth and easy to connect. Super convenient!
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Reviewed in the United States on March 30, 2026

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