Segment® Herbicide

A Better Selective Postemergent Herbicide

Segment herbicide offers selective control of weed problems in centipedegrass, annual bluegrass, fine fescue (established) and tall fescue (established). Turf professionals and commercial growers can enjoy control with no injury to labeled ornamental plants at any stage of growth. In addition, Segment is the only postemergent grass herbicide that can be applied directly to trees or shrubs at any stage of growth, even at seedling and “bud break” stages. Segment can be used on any non-grass plant species without issue.

Annual and Perennial Grasses Controlled

When used as directed, Segment offers excellent control of:

  • Bahiagrass
  • Barnyardgrass
  • Bentgrass (Highland, Colonial)
  • Bermudagrass
  • Broadleaf Signalgrass
  • Brome, Downy
  • Crabgrass (Large, Smooth)
  • Cupgrass, Woolly
  • Foxtails
  • Goosegrass
  • Johnsongrass
  • Junglerice
  • Lovegrass
  • Orchardgrass, Seedling
  • Pigeongrass
  • Panicum spp.
  • Quackgrass
  • Red Sprangletop
  • Ryegrass, Annual
  • Sandbur, Field
  • Shattercane/Wildcane
  • Velvetgrass, German
  • Volunteer Barley
  • Volunteer Oats
  • Volunteer Rye
  • Volunteer Wheat
  • Wild Oats
  • Wild Proso Millet
  • Wirestem Muhly
  • Witchgrass


Where To Use Segment:

  • Bedding plants
  • Centipedegrass, annual bluegrass, and established fine fescue and tall fescue grasses
  • Fences and hedgerows
  • General indoor/outdoor sites
  • Ground covers
  • Golf courses
  • Wildflowers
  • Public buildings
  • Recreation areas
  • Shrubs and landscape areas
  • Field and container nurseries

Get Control And Flexibility

Segment offers postemergent control of a broad spectrum of grassy weed problems. It is highly compatible with other herbicides, allowing flexibility of use in tank mixes (see below for suggested tank-mix options). Segment is also rainfast in one hour, giving you flexibility in your application time as well.

Control in both fine fescue grass and tall fescue is rate-dependent at 1.5 pints maximum use rate. Note: Applications to tall fescue will result in discoloration and growth suppression. If reduced turf quality is not acceptable, applications should not be made to tall fescue.

Segment can be applied over-the-top on more than 350 species of ornamentals, resulting in better control of weeds and labor and cost savings.

How To Apply Segment

Use Segment as directed by the label and follow these tips for best results:

  • Apply Segment when grasses are actively growing and free of stress.
  • Use a standard high-pressure flat fan or hollow cone nozzle for application.
  • Irrigate prior to application to enhance uptake.
  • Spray the area thoroughly enough to wet the target grass.

Add Nitrogen Source (AMS) for optimum performance.


Suggested Tank Mixes

Segment can be tank-mixed with a number of other herbicides. Suggested BASF tank mixes include:

  • Segment + Image® 70 DG herbicide (Turf uses only)
  • Segment + Basagran® T/O herbicide (Can be used for both turf and ornamental applications)
  • Segment + Pendulum® AquaCap herbicide (Can be used for both turf and ornamental applications)
  • Fill tank half-full of water, add Segment, fill tank to full level, then add Pendulum AquaCap while under agitation.

Always read and follow label directions

Downloads and Resources

Labels, SDS and State Availability

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