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Ongoing rose blackspot problem - what to do?
Sorry to revisit this problem again - yes it’s Darcey Bussell. She continues to have bad blackspot, I am picking off a good handful of yellowing, infected leaves practically every day. I was wondering if this continuous part defoliation is doing the right thing, health-wise. Should I give up and leave her too it, apart from clearing up underneath, then make a concerted effort to eradicate the problem in the winter or should I continue picking off?
My nearby Munstead Wood and Lady of Shallott have a little as well but Darcy is the main problem, and I suspect source, of the spread. Some sample leaves:

My nearby Munstead Wood and Lady of Shallott have a little as well but Darcy is the main problem, and I suspect source, of the spread. Some sample leaves:

Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
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You can minimize by removing all diseased foliage on the ground at the end of the season which should delay the onset of black spot the following year.
The only other option is a black spot spray, but it has to be used throughout the season
Billericay - Essex
Knowledge is knowing that a tomato is a fruit.
Wisdom is not putting it in a fruit salad.
I suppose what I was really wanting to know is if continuing to strip off so much of the foliage will weaken the plant more than not doing it!
Thanks for your advice.