I have trees that want to grow with my raspberries, and after years of cutting the shoots down, I still have some four-inch stumps that continue to widen, and launch troublesome shoots that quickly reach 8 feet tall in a few months if they are not continually cut. The trees are next to raspberry plants and peonies, and in window wells. I live in St Paul, Minnesota. I purchased Bonide Stump-out Stump and Vine Killer in liquid form, and was going to brush it on the stumps but I am concerned that even if executed perfectly, my raspberries may be inedible or harmed.