Jeannette from Pointe-du-chene writes
Tordon RTU Specialty Herbicide is labeled to control maples in general, though we are not sure if it has been tested specifically on Norwegian maples. Keep in mind that Tordon RTU should not be used on residential properties at all: this product has a very long half-life and can affect other plants near the treatment area for years after application. Please let us know if you need a recommendation for an alternate product.
Answer last updated on: 10/18/2019