potato blight and eel worms?

I planted a row of pentland javelin spuds about 3 weeks ago and yesterday was investigating why about a third had not come through. You know what's coming don't you :evil:
when i dug down they were either rotten and mushy or had little millipede type (but not) creatures in them or both. The other potatoes look healthy, at the moment - anyone any suggestions ?

, personally, would not grow that variety. But then are you on freshly cleared ground? If so, damage to underground crops will lessen with time.

It's actually on the veg patch at the bottom of the garden - have had probs with blight before but usually in july/august not when the spuds first go in  :shock:
TBH i usually grow earlies which have been out before the main problem usually occurs, or a more resistant type like kestrel. I just bought the pentland javelin on impulse - ah well, buy in haste repent at leisure.