Why Roundup works on synthetic turf weeds

Roundup is the brand name for glyphosate, a non selective, post emergent herbicide. It targets plant enzymes and does not react with polyethylene or polypropylene turf fibers. That means it can kill the weed without harming the turf material when applied precisely.

Safe application on artificial turf

Choose the right product

  • Use a glyphosate only or water based formula for spot treatments on turf.
  • A ready to use trigger spray keeps dosage simple and controlled.
  • Avoid products labeled as soil sterilants or long residual weed killers on the turf surface.

Tools that prevent overspray

  • Cardboard or plastic shield held around the weed.
  • Sponge, foam brush, or wipe on applicator for direct contact.
  • Low pressure pump sprayer with a tight cone pattern.

How to apply

  1. Pick a calm, dry window. No wind and no rain for the time stated on the label.
  2. Brush the turf to expose the weed leaves.
  3. Isolate the plant with your shield, then lightly wet the leaves. Do not soak seams or flood infill.
  4. Keep people and pets off the area until dry, typically 30 to 120 minutes per label.
  5. Remove dead growth after 7 to 14 days and reapply only if needed.

Will glyphosate damage artificial turf?

  • Turf fibers: Polyethylene and polypropylene are unaffected by glyphosate.
  • Backing and adhesives: Spot applications are fine. Avoid puddling along seams to protect adhesive bonds.
  • Infill: Silica sand, rubber, and TPE infills are unaffected.

If you accidentally mist the turf, rinse with clean water. It will not fade or melt the turf.

Avoid these mistakes

  • Do not spray on windy days. Drift will injure nearby plants.
  • Do not use salt, bleach, or solvent based cleaners as weed killers.
  • Do not torch weeds or pour boiling water near turf.
  • Do not oversaturate or flood seams and edges.

Better weed prevention for synthetic lawns

  • Install quality weed barrier fabric under the base during construction.
  • Seal edges and seams correctly to block light and soil contact.
  • Blow or brush away leaves and debris that drop seeds.
  • Along perimeters and beds, consider a spring pre emergent applied by a licensed pro according to label and local rules.

Regulations, labels, and warranty

Always follow the product label and local regulations for herbicide use. Check your turf warranty and installer guidance for chemical use. FusionTurf systems handle spot applied glyphosate when used as directed.

Need help

Want a clean, low hassle weed control plan for your synthetic lawn? Talk with a FusionTurf dealer for product picks and a maintenance schedule that fits your site.