I made a firm commitment to stop using chemicals in the garden and have gradually lessened my use in so much as the only treatment I used last year and the previous year was Roseclear. The roses were late to come into leaf this year so decided that now was the time to cease treating them.
However, most of them are suffering from what I think might be some sort of insect problems. Aphids don't seem to be a problem this year so what is causing the problem and how to treat organically? Thanks in advance.