Max from Keosauqua, Iowa writes
Is there an all in one or something that can be added to a product such as Roundup.
Unfortunately, herbicides that will kill the blackberry would also damage the black walnut and oak trees. Roundup QuickPro is the best option to treat around desirable trees, ornamanets, and shrubs since it does not leach in the soil.
Answer last updated on: 06/13/2017