Herbicide applied directly to leaves of plants. Used for spot treatments to ensure non-target species are not treated.
Herbicide applied to the lower 6-12 inches of the base stem of the target species.
Used to treat larger woody plants/trees, bark is hacked and herbicide applied to cuts.
Herbicide is injected into the bark of the target species
Herbicide is applied to the exposed inner bark within minutes of being cut.