Potato problem

[Susiebelle]

I was thrilled with my Nadine potato harvest and cleaned the spuds up, sorting into med/large and then smaller ones and stored in hessian sacks.  I used some of the large ones yesterday and found that even though the outside looked perfect once cut into the centres are rotten some having a cavity :'( :'(. What have I done wrong?

[Susiebelle]

[betula]

Wireworm can be a nasty potato pest.

[ceres]

Wireworm can be a nasty potato pest.

Wouldn't there be a hole on the outside if it was wireworm?

Here's stuff on potato rot from the RHS:

http://www.rhs.org.uk/advice/profiles0902/potato_rot.asp

[keef]

Quite often its due to a sudden increase in water - heavy rain etc.. I dont thinks its a disease. Some of mine are the same, normally the effects biggest ones too.

[Susiebelle]

That sounds promising Keef  :) thanks