Getting aerial ivy roots off brick
Does anyone know how to remove aerial ivy roots from (modern) brickwork. We successfully killed roots of very overgrown ivy, then after a few months pulled the hefty growth off the house walls only to find we can't shift the remaining 'shredded wheat' type aerial roots. We've tried scraping, scrubbing etc all to no avail. This was three years ago, and they are still hanging on. Help!!