Posted: 05/05/2015 at 12:17
You can cut or dig up the ivy roots if they are on your property. If that kills the ivy so be it. If your neighbour wants ivy growing on her wall she can plant some.
However, I understand the problems of difficult neighbours and you don't want to fall out if you don't have to. Ivy can be very good for wildlife - would it be preferable to just keep the ivy clipped neatly on your side rather than kill it?