About two months ago the leaves on my roses turned pink. “Rememberence”was hit worst. They have recovered but still looking a bit miserable. I planted some new roses “Trumpeter” 2months ago and now I see the edge of a few of the leaves turning pink. They have been sprayed reg with rose clear and last week with bug clear. Local garden centre said its a virus.I have a lot of roses. How can I save them?