The Blenheim Apricot has some borer damage that was discovered during recent dormant spraying. I've sent out photos to several local nurseries, some blogging pals, and to a few podcasters I follow. Most all advise to cut the damaged limb.
A tree trimmer visited our backyard to provide an estimate for pruning a Chinese Elm. He advised to leave the limb. Now that's the answer I want to hear; but if it's best to remove the limb I would like to do it soon. A replacement lateral limb on this espalier shouldn't take long to grow.
Next weekend I'm attending a pruning seminar and will take photos and questions regarding this problem and others in the yard. Photo #1 shows the tree full of leaves and fruit taken this past spring (April 2012). I've circled the damaged area. Photo #2 is a close up of the largest damaged area. Photo #3 is smaller damage all in the same area. Both of these photos were taken on January 13, 2013.
I'm interested in any other opinions. A decision needs to be made soon.