Fall invasive control methods

As native trees and plants approach dormancy and lose their leaves, now is a great time to be in the woods tackling invasive species which typically stay green longer.

Two control methods work especially well this time of year:

  • Basal bark: Applying a six-inch band of triclopyr ester herbicide directly around the trunk.
  • Cut-and-treat: After cutting the tree or shrub, applying glyphosate herbicide to the stump.

Both triclopyr ester and glyphosate are available under many trade names. Before using any herbicides, though, know the active ingredient ratios and how to apply the chemical.

Just as important is being able to identify the invasive species you want to control. Pictured below are three invasive plants that respond well to both the basal bark and cut-and-treat control methods. Can you identify them?

Stems and leaves of three invasive species, labeled A, B, and C.


A: Honeysuckle

B: Common buckthorn

C: Autumn olive