[noshed]

Does anyone know if vines suffer from this? Mine has got quite a few  leaves with yellowing between the veins - which seems to be a symptom. But is this just autumn colour?
There's a pic in the album.
I presume I shouldn't do much to it until the spring - last year I just mulched it with a bit of manure when it had died back (and then I cut it back viciously which is probably why I didn't get any grapes this year) I'll just leave it this year, presuming the grapes form on last year's wood.
No idea what vine it is - just a big one. My soil is clay/loam and about neutral.

[John]

Few epsom salts can't do any harm  - I'd give it a try

[milkman]

ditto what John says, no harm in trying.
looks to me a bit like a virus though?

[John]

Possibly - but epsom salts, in moderation, will do no harm so I'd give them a go.