How long were you leaving them between planting and harvesting?

Sorry, we have been away for a while so I am a rather late in replying to you.
I planted the seed potatoes in early April and harvested them mid July. The first of the crop were a really odd shape and very difficult to peel but also this first crop was already gone on to produce more potatoes themselves. I gather that this may have been due to irregular watering but last year we had a severe attack of blight so I held off watering quite so much for this summer.
Again sorry for the delay in replying to your question.

Kind regards, Janey.

If you had blight in 2009 I assume you planted your potatoes in a different area this year. Irregular watering can cause all sorts of problems. New potatoes shouldn't be peeled at all simply scrubbed. You could probably have done with harvesting a little earlier as well.

Thank you for your prompt reply.
Yes I always use a 3 year rotation on my plot. I've been growing vegetables for over 30 years but have never had this problem before. The crop were so peculiar in shape most of them had to be peeled, they taste absolutely fine but were not very presentable. There were also many of the crop that had turned green and were sending out new shoots with leaves forming!

You might want to check with the company you bought the seed potatoes from.

Thank you for your help Moon grower, I will do as you suggest. Many thanks, Janey.

Good luck, this really is a puzzle...