Warty Potatoes

Sounds like scab, which doesn't affect the eating quality. It may be that the pH was a bit high (lime in the soil?) Potatoes like their soil a bit on the acid side.

Sounds like scab, which doesn't affect the eating quality. It may be that the pH was a bit high (lime in the soil?) Potatoes like their soil a bit on the acid side.

Her book says don't lime soil that potatoes are to grow on and that Potato Warts are quite rare. So it is more likely scab

Also the local expert who wins the potato prize at the show says avoid certain spuds where scab is known to be a problem! such as Pentland Crown this is very susceptible. Pentland Dell, Desiree, King Edward, Home Guard & Record show some resistance. Her Nadine spuds appeared to be OK, and Pink Fir are fine. They are a 'salad' potato, but are lovely cut in four and roasted like big oven chips, or just boiled whole. They also crop later and can be left in the ground longer. (the longer they stay in the earthyier they taste - yum). Slugs can be a slight problem.