[Lardman]

Just for once I'd like something to grow without coming down with plague.

I dug up the strawberry bed at the start of the year as it was about as productive as I am on a Friday afternoon  I saved about a dozen on the runners for a tower in the greenhouse, and whilst they're in flower at the moment they aren't looking well at all.

I've been cutting of leaves looking like this for a while hoping to control whatever it is but Im ruinning out of leaves fast, time to give up on strawbs completely?

[Nobbie]

They may have a virus, which would also explain the poor results from the original bed. Maybe time to get some fresh plants and burnt the current ones.

[Lardman]

The closest match I could come up with was leaf blight and if that's the consensus they're going in the bin. Those were replacements bought for the last lot which failed to produce. 

[gobs]

I would call leaf spot. The stalks are brown, that's where the fungus spreads from.

You probably planted up infected stolons. Not much else you can do, what you already have been doing.