Potato problem!

[Palustris]

Anyone any ideas. I have never seen this in 40 years of growing potatoes. Not insect eggs and the leaves eventually curl up and rot.



TIA

[Palustris]

[goodlife]

Hmmm....looks very much like Oedema...but I've never had potatoes suffering with it.
Has your plot suffered flooding recently or soil been other wise VERY wet ?

http://apps.rhs.org.uk/advicesearch/profile.aspx?pid=637

[Palustris]

This is in the poly tunnel so more likely to have been very dry than very wet.
Thanks anyway.

[manicscousers]

Funy, that. We have some similar in the poly, next to lots that are fine ?

[Palustris]

Sharpes' Express and Certified seed from a Garden Centre.