[hanssg]

good evening just been to my plot discovered on my spuds some of the leaves have gone brown and burnt looking they have been under hoops and plastic sheeting for a couple of days is this frost or sun damage and will they recover thx.

[mumofstig]

They shouldn't have got frosted under plastic.
So, If you've had the bright sunshine for the last few days - I would suspect that they had condensation on them from being under the plastic and got frazzled when the sun came out. Can't win can you 

Either way they should recover 

[hanssg]

yes your right there i would have covered them with fleece but dident have any wide enough typical