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PBI-Gordon - Q4 Plus Turf Post-Emergent Herbicide
- Controls grassy and broadleaf weeds in one application
- Post-emergent for use in spring through fall
- Safe on cool- and warm-season turfgrasses
- Visible results in days with reseeding allowed after one week
- Ideal for lawns, athletic fields, commercial turf, and sod farms
- Targets crabgrass, clover, nutsedge, chickweed, and more
- Selective application won’t harm desirable turf
Product Details
Q4 Plus Turf Herbicide by PBI-Gordon is a professional-grade, post-emergent solution formulated to eliminate both grassy and broadleaf weeds in turf. This selective herbicide combines four active ingredients to tackle weeds like crabgrass, yellow nutsedge, and clover without harming desirable grasses. Q4 Plus is ideal for residential lawns, athletic fields, commercial properties, and sod farms. With a rapid visual response and short reseeding interval, Q4 provides visible, reliable results season after season.
Key Features
- Combination chemistry with Quinclorac, Sulfentrazone, 2,4-D, and Dicamba
- Fast-acting systemic absorption through roots and foliage
- Post-emergent activity from 50°F to 85°F
- Wide turf compatibility—safe on cool- and warm-season grasses
Active Ingredients
- Quinclorac
- Sulfentrazone
- 2,4-D
- Dicamba
See label for complete ingredient breakdown.
Controls
- Crabgrass
- Yellow Nutsedge
- Clover
- Chickweed
- Dandelion
- Plantain
- Wild Violet
See label for a complete list of controlled targets.
Application & Use Rates
- Post-emergent liquid application only
- Apply between 50°F–85°F for best results
- Reseeding interval: 7 days on most listed turf
See label for complete application instructions and precautions.
Precautions
- Do not apply to desirable ornamentals or near water sources
- Wear protective clothing and avoid drift during spraying
- Do not use on bentgrass mowed under 1/2"
See label for complete safety precautions and handling instructions.
Storage & Disposal
- Store in a cool, dry place away from food or feed
- Do not reuse or refill containers
- Dispose of containers per local regulations
See label for proper storage and disposal guidelines.
Technical Specifications
- Formulation Type: Liquid Emulsifiable Concentrate
- Application Method: Post-emergent foliar spray
- Mode of Action: Systemic hormone disruptor
- Use Sites: Turfgrass, sod farms, golf course roughs
- Rainfast Time: Typically within 6 hours
Specifications
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