How to kill tree roots
I know there was a post about this, and perhaps one I began myself, but I can't find them with a search. So I'm bringing up the topic again.
My elms have once again nearly killed one of my garden plants, this time the Tea rose 'Isabelle Nabonnand'. We must have prepared the hole too well. I discovered the elm roots when we transplanted our strangely picky Tea rose to see whether it would do well in a different spot. Now I'm out for blood (sap): every time one of our plants is attacked, out comes an elm. That is, if I can find a way to kill the roots, in the least toxic way possible. Anyone know? Digging out the roots is not an option, and I speak as a person who is a willing digger. Cutting down the tree is useless: it would just send up a hundred suckers.