Killing off a stump
I had a small shrub growing on top of a wall. I think it was
elderberry. I cut this down a couple of years ago, but it then regrew.
Unfortunately it has quite cleverly distorted the drain pipe, which
has added to the problem, but giving it a steady supply of water! I
have now cut it down and pulled out a rootstock about the size of a
fist. However there are still a few roots that go down into the wall
cavity and I doubt I will be able to remove these.
So, what is the best way to treat the roots, so they don't resprout. I
understand that ammonium sulphamate, which was sold as root out has
now been banned.
Brushwood killer available from any good garden centre.
Peter Crosland
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