Some serious pruning needed according to your pics.
A couple of locations you can visit, who show and tell better than I can:
(also watch related videos on right side)
(when you check this article out, then go to Contents, and check that out as well.
(I thought this was good because your trees, according to your pics, seem to be very near evergreens)
GARDENING : Maintenance : Pruning Apple Trees : DIY Network
(scroll down to green print on fruit tree diseases)
Keep us updated with your progress. (words & pics)
I don't know why some of the links aren't connecting lately, but if they don't for you, type in the above info, outside of the forum. Sorry.