Kathy writes
Unfortunately, there are not any selective herbicides that list japanese barberry on the product label however Glyhosate and Triclopyr are 2 active ingredients known to be effective in killing it. It is recommended to apply as a foliar spray or as a cut stump application and repeat applications may be needed to new growth. Please review this article on Japanese Barberry by the Penn State Extension Office on methods of control and treatments.
Answer last updated on: 03/18/2022
