I lifted some Harmony poatoes for tea tonight (they were absolutely wonderful) but a couple were covered in what looked like dark, lumpy warts.
I cut them open to investigate and they were clean, just these strange growths on the outside. What is this and what causes it?
I cut them open to investigate and they were clean, just these strange growths on the outside. What is this and what causes it?

Fairly easy to tell the difference between the 2 things! And the scab picture was the worst one I could find, they don't usually look that bad...
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