RRD on rambler
I'm pretty sure this is RRD on a Veilchenblau that grows over a shed. I'm not sure how long it's been there. The witches broom growth and bristly canes are high up above the shed but now I see a tiny bit on another cane that was cut close to the ground.
It scares me that these mites may have been flying all around my garden. Should I take out on the two canes (leaving two), take the whole thing down to the ground, or remove the rose entirely?