PBI Gordon

Q4 Plus Broadleaf Weed Herbicide (Controls Nutsedge, Foxtail, Crabgrass) - 1 Quart

PBI Gordons Corp

Q4 Turf Herbicide for Grassy & Broadleaf weeds

Q4 Plus Turf Herbicide is a patented product containing four active ingredients, Quinclorac, Sulfentrazone, 2,4-D, and Dicamba, for control of a broad spectrum of both grassy and broadleaf weeds through multiple modes of action in established cool-season and bermudagrass turf areas. This combination offers the professional turf manager more knockout power and the speed associated with the Gordons line of Proform products. Weeds controlled include yellow nutsedge, crabgrass, foxtail, and many more. Q4 Plus is highly selective on coolseason turf grasses. Use sites include lawns, golf courses, cemeteries, public parks, sports turf, sod farms and other sites. Labeled species include bluegrasses, perennial and annual ryegrasses, fescues and bermudagrass. Q4 Plus is rain-fast in 6 hours and has a one week reseeding interval. Q4 Plus has dramatically less discoloration on cool-season turf compared to MSMA. Call-backs are a thing of the past when your clients and members can see fast results, usually within 24 to 48 hours.

  • Post-emergence control of both grassy and broadleaf weeds
  • Crabgrass and foxtail control
  • Extra knockout power on grassy weeds
  • Contains 0.75 lbs. ai/acre of quinclorac
  • Yellow nutsedge control
  • Fast visual response
  • Rapid activity and death of broadleaf weeds
  • Wide window of application for broadleaf weeds
  • Suitable for applications up to 90F
  • Labeling includes use on bermudagrass

Rate of use: Mix between 2.6 to 3 fl.oz. with 1 gallon of water for treatment of approximately 1,000 sq. ft. of turfgrass.

Active Ingredients:
  • Quinclorac - 5.69%
  • Sulfentrazone - 0.69%
  • 2,4-D, dimethylamine salt - 12.02%
  • Dicamba, dimethylamine salt - 1.38%

Product Label


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    Based on 4 reviews Average Rating 5.00 stars out of 5
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    • E
      Eric Olivardia E. O. Eric O.

      Q4 Plus

      Great weed herbicide

    • T
      Tyler Woyke T. W. Tyler W.


      Does everything it says it does. Clover and other weeds are dead two days after spraying.

    • D
      David Collins D. C. David C.

      My go to post emergent herbicide

      It’s the best I’ve found. Seed Word is very dependable. Just sent a quart to family member. I’ll keep using Q4 & Seed World.

    • k
      kevin lennon K. L. kevin l.


      Worked well! Excellent results!

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