Garlon® 4 Ultra

  • Herbicide

The Industry Standard for Individual Plant Treatments

Garlon® 4 Ultra herbicide is the industry standard for basal cut-stump, basal bark and dormant-stem treatments, delivering excellent broad-spectrum control of woody plants even after other products call it quits for the season.

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Reduced environmental impact

Garlon® 4 Ultra herbicide features a patented, nonpetroleum-based, plant-derived seed oil solvent that helps reduce environmental impact.

Proven brush control

Garlon 4 Ultra demonstrates increased efficacy on multiple woody species, including mesquite, sweetgum and Scotch broom compared with other formulations of triclopyr ester.

Flexible application window

Garlon 4 Ultra has an increased application window that allows crews to work year-round, including the dormant season.

Use sites

For a complete listing of all approved use sites for this herbicide, please refer to the product label.

Non-irrigation Ditchbanks


Industrial Sites




Telephone Communication Lines


Wildlife Openings

Industrial Manufacturing Sites

Controlled weeds

This product delivers effective weed control against the following:

  • Ash
  • Aspen
  • Beech
  • Birch
  • Blackberry
  • Broom
  • Buckthorn
  • Cherry
  • Dogwood
  • Elm
  • Fir
  • Hickory
  • Kudzu
  • Locust
  • Maple
  • Oak
  • Pine
  • Poplar
  • Saltcedar
  • Sweetgum

Refer to the Product Label for complete product efficacy information.

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State registrations

  • Registered
  • Unregistered

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Technical Specifications

  • Active Ingredient


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™ ® Trademarks of Corteva Agriscience and its affiliated companies. When treating areas in and around roadside or utility rights-of-way that are or will be grazed, hayed or planted to forage, important label precautions apply regarding harvesting hay from treated sites, using manure from animals grazing on treated areas or rotating the treated area to sensitive crops. See the product label for details. State restrictions on the sale and use of Garlon 4 Ultra, Garlon XRT and Milestone apply. Consult the label before purchase or use for full details. Vastlan is not registered for sale or use in all states. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Always read and follow label directions. © 2021 Corteva.