At least it's not ash dieback. Ministry of Food & Fisheries or whatever it's calling itself nowadays has said that Rowan (mountain ash) is immune to ash dieback, thank goodness.
Does anyone know how to propoagate rowans? I'm moving later this year, and I'd love to take a cutting or something of my original, well established rowan at the bottom of the garden. It's home to a pair of blackbirds that make me laugh (they're very tame for blackbirds, we've known each other for a few years now and they know I'm harmless, but a good source of worms & slugs), so I'd love to have another tree in my new garden.
My rowan has kept lots of birds fed, I normally replenish the bird table, I haven't been able to keep up with demand this year, but it's kept a lot of birds alive, not many berries left now - not seen it this denuded EVER.