Getting rid of blackberry?
We have some blackberry that keeps growing up in the break between a concrete foundation wall and a poured concrete slab. We have been cutting it back, but we can't get to the roots to dig it out since they are deep down under the concrete slab.
We are not ones to use herbicide for anything, but someone said if we cut the stalks and painted it on the stalks it would kill the blackberry and the effect to the environment should be minimal. Thoughts on this? Or other suggestions on how to get rid of it? It is in an area where the kids like to play so we'd really like to get it out of there.