Peter, hello,
we have problems with blight almost every year, so try the resistant varieties. We grow first and second earlys, letting the main crop be from the commercial growers if we run short, and then we put in late spuds for Christmas too, which we are still digging now.
Lady Crystl, casablanca, cara, orla, vivaldi and red duke of york have been grown over the last few years and this year its to be Lady crystal, orla and Sarpo red (blight resistant and good slug resistance too, from E Europe).
My wife is the vegetable manager, I'm merely handy with fork and spade and fixing the fences and compost bins etc.
Cheers, Kim
PS Bob apparently mistletoe has been found growing wild in the hedge rows above Kirk Michael here on the Island.