Discussions

I know that many people have been dealing with a blight in their tomatoes this year, but is their also a blight affecting the potatoes?  
 
I bought some bulk potatoes in the last little while and many of them are rotting from the inside out. I am not blaming the place I got them for this, just curious as to why. I bought potatoes from this place last year and was very happy with them and the lasted and lasted.