[Curlytop]

Can anyone give me some advice?
1st year I have started growing my own apart from tomatoes; my 2nd early potatoes have started to lose their leaves, they have gone black in parts and the leaves are falling off, is this a disease or am I doing something wrong? They haven't started to flower yet and were looking ok until today.

Thank you

[Solidthegreat]

Is this happening to every plant?

[Curlytop]

I have 4 plants in the same tub and yes all 4 are effected, I do have some 1st earlies and main crop in another part of the garden and they are ok.

[Salmo]

Might it be bruising from wind or hail?

[Curlytop]

That is possible we had some very heavy rain last night and today.
Thanks Salmo