Roses are red…

…well, the buds are!

We can’t wait for our roses to bloom – this is our Princess Alexandra of Kent from David Austin Roses – pretty pink blooms and a beautiful scent

But we’re a little worried because one of the buds (which you can just see in the pic) and one of the leaves has a white, slightly powdery, residue on it – is this mildew? And what’s the best way to get rid of it? (if we need to?)