Karen Walsh: My neighbour's knotweed is sprawling on to my land - what can I do?

Dealing with giant knotweed is difficult enough without adding a difficult neighbour into the equation.

Dealing with giant knotweed is difficult enough without adding a difficult neighbour into the equation.

Dear Karen, 

I read an article recently about a man who bought a house in the UK last week and sued the seller for damages as he found Japanese knotweed behind the garden shed after he moved into his house.