Quintessential Crabgrass Control | Herbicide

Quintessential™ Crabgrass Control | Selective Post-Emergent Herbicide

Take control of crabgrass and other labeled weeds with Quintessential™ Crabgrass Control, a selective, post-emergent herbicide powered by 18.92% quinclorac and H-Value Technology. This liquid concentrate is designed to improve quinclorac absorption and provide effective control of crabgrass, foxtail, signal grass, torpedo grass, and other labeled broadleaf and grassy weeds.

Quintessential is formulated to work across multiple crabgrass growth stages, including the challenging 3–5 tiller stage. Its enhanced formulation helps deliver a higher rate load into targeted weeds and may improve performance under drought-stressed or rainfast conditions.

When applied according to the product label, Quintessential provides selective weed control in approved turfgrass varieties without damaging the surrounding lawn. It can be used on residential and non-residential turf and may provide control for up to 90 days, depending on the weed, growth stage, application conditions, and environmental factors.

Product Label & Specs 

Key Benefits

• Controls crabgrass and other labeled grassy weeds
  
• Helps manage large and smooth crabgrass
  
• Effective across multiple crabgrass growth stages
  
• Targets crabgrass in the difficult 3–5 tiller stage
  
• Controls labeled broadleaf and grassy weeds
  
• Contains 18.92% dimethylamine salt of quinclorac
  
• Powered by H-Value Technology
  
• Improves quinclorac absorption into targeted weeds
  
• Selective post-emergent herbicide for approved turf types
  
• May provide up to 90 days of weed control
  
• Ideal for spot spraying and zone treatments
  
• Suitable for residential and non-residential turf
  
• Available in 7.5 oz and 64 oz sizes
  

Target Weeds

Quintessential is labeled for control of a variety of weeds, including the following:

• Large and smooth crabgrass
  
• Barnyardgrass
  
• Foxtail
  
• Signal grass
  
• Torpedo grass
  
• Black medic
  
• Clover
  
• Daisy
  
• Dandelion
  
• Morningglory
  
• Wild violet
  
• Other weeds listed on the product label
  

Approved Turf Types

Quintessential can be used on labeled cool-season and select warm-season turfgrass varieties:

• Cool-Season Lawns: Kentucky bluegrass, Turf-Type Tall Fescue (all fescues), Ryegrass
  
• Warm-Season Lawns: Bermuda, Zoysia, Hybrid Bermuda (may experience temporary growth stunting)
• Do not use on Bahia, Centipede, or St. Augustine lawns 

Size Options and Coverage

Coverage is based on the lowest application rate. Always use the application rate and coverage information listed on the current product label for the specific target weed.

• 7.5 oz bottle: Covers up to 6,800 sq. ft.
  
• 64 oz bottle: Covers up to 58,600 sq. ft.

Application Information

• Mix 1.10–1.45 oz of Quintessential per gallon of water, depending on the weed, and apply evenly across 1,000 sq.ft.
  
• Use a battery or pump sprayer for accurate application.
  
• Do not apply with a quart hose-end sprayer or Ortho Dial N Spray.
• Use a methylated seed oil, such as Duo Stick Select, to help improve product performance. If methylated seed oil is unavailable, a non-ionic surfactant may be used according to label directions.
  
• Spot spray or zone spray whenever possible instead of treating the entire lawn.
  
• Broadcast application should generally be reserved for lawns with extensive crabgrass or weed pressure.
  
• Quintessential may be applied from 7 days before seeding through 28 days after selected weeds emerge, subject to label directions and turfgrass tolerance.
  
• Do not water or irrigate for at least 24 hours after application.
  
• If rainfall does not occur within 2–7 days after application, irrigation of at least ½ inch is desirable.
  
• Do not apply to turfgrass varieties listed as prohibited on the product label, such as Centipede, Bahia, and St. Augustine grasses. 
  
• Always read and follow the product label for application timing, rates, surfactant requirements, and use restrictions.