In article ,
says...

every potato has what I think is scab: rough brown patches, raised above
the adjacent smooth skin. Some tubers were completely covered by it; I
scraped it off and cooked them anyway, but I'd like to avoid it or at
least decrease the incidence in future.

Sarah, [yes I'm still lurking g] odds are that they haven't had enough
water in the past few weeks. Its a bit late to recover the situation now
but June is really the time to ensure they don't get too dry.

Better luck next year...

--
David
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