For best results, apply Prime Source Quinclorac 75DF Select when weeds are small and actively growing—ideally at the 1–2 leaf stage for crabgrass.
Product Information
Prime Source Quinclorac 75DF Select Herbicide – 1 lb
Prime Source Quinclorac 75DF Select is a selective, postemergence dry‐flowable herbicide that delivers up to 90 days of control on both grassy and broadleaf weeds, safely in a wide range of turfgrass settings.
Why to Use
Choose Quinclorac 75DF Select for its unmatched combination of broad-spectrum efficacy, long residual activity, and turf safety. It:
Controls tough annual grasses like crabgrass at multiple growth stages and a wide variety of broadleaf weeds.
Provides up to 90 days of residual control, reducing the need for frequent reapplications.
Is safe on most established turf species and compatible with seeding and overseeding programs.
Offers a convenient dry‐flowable formulation for easy measuring, mixing, and tank compatibility.
Helps maintain pristine turf quality on high-value sites such as lawns, parks, athletic fields, golf courses, and sod farms.
How to Use
Apply as postemergence broadcast or spot sprays to actively growing weeds.
Tank-mix with a methylated seed oil adjuvant for optimum grass control.
For annual grasses: make two sequential applications of 1.0 fl oz (0.51 lb AI/A) per 1,000 sq ft, then one application of 0.90 fl oz (0.46 lb AI/A) at 14–21‐day intervals
Always follow label-specified rates, turf species, and growth‐stage guidelines.
When to Use
From 7 days before seeding up to 28 days after emergence on selected weeds
Apply when weeds are actively growing for best uptake and control
