Cut-surface applications are efficient and can be made quickly and easily. They are effective for controlling individual trees along distribution lines and can extend maintenance cycles. Using the cut-surface method on a site that is being mechanically cleared allows the herbicide to prevent resprouting. If treating highly visible areas, there is no unsightly brownout when foliage dies, since only the stumps are treated.
Different forms of cut-surface applications include cut-stump, basal cut-stump, cut-stubble, hack-and-squirt and injection applications. Cut-stump treatments are the most popular, so consider Pathway® specialty herbicide, a convenient ready to use formula specifically designed for cut-stump treatments, or a 50% dilution of Vastlan™* in water. For basal cut-stump applications utilize Pathfinder® II specialty herbicide a convenient ready to use oil based formulation, or a mixture of Garlon® 4 Ultra specialty herbicide in any commercially available basal oil mixture.
*Vastlan is not yet registered with the U.S. EPA. Federal registration is pending. The information presented here is to provide technical information only and is not an offer for sale of product.
Video: Basal Cut-stump treatment with Garlon 4 Ultra in oil
Basal cut-stump treatments are highly effective for controlling trees or brush. This video goes over how to apply a low-volume basal mix of Garlon 4 Ultra in oil to cut stumps.
Video: Cut-surface with water-based herbicide mixture
This video explains the proper technique for applying a water-based herbicide to a cut surface.
Water-based cut-surface application basics
- Treat the surface as soon as possible after cutting.
- If more than one hour elapses after cutting, switch to an oil-based herbicide application.
- Treat only the cambium and outer 2 inches of sap wood (xylem) inside the bark around the entire circumference including down the trunk where the bark may have separated from the stump.
- Exercise caution with soil-active herbicides to prevent off-site plant damage.
- Applications can be made any time of the year, but should be done immediately after cutting but avoiding the spring for sap bleeding species like maples.
- Consider Pathway or Vastlan* specialty herbicides.
Oil-based basal cut-stump application basics
- Can be applied anytime after cutting, including winter months.
- Do not make applications when snow or water prevents spraying to ground level.
- Treat the cambium and outer 2 inches of sap wood inside the bark around the entire circumference and also the bark on the stump as well as any exposed roots around the stump to ground level, but not to the point of runoff.
- Treat the entire circumference of the tree, including down and around rips in the bark.
- To ensure effectiveness, treat exposed roots around the stump.
- Applications can be made any time after cutting, including winter months, except when snow, ice or water prevents spraying to ground level.
- Consider Pathfinder® II , a tank-mix of Garlon 4 Ultra and Milestone® or Garlon 4 Ultra specialty herbicides.
Video: Hack-and-squirt injection applications
Hack-and-squirt injection applications are effective in controlling trees and woody plants that are too large for basal bark treatments. This video demonstrates the proper technique to perform a hack and squirt to small, medium and large trees.