I have two apricot trees, both bloomed last year and one had one piece of fruit. This year only one bloomed and leafed out. The other one looks completely dead. The good one is going great, but the dead looking one looks terrible. Tru green came out and injected it with something they thought would help. Do I wait a year and see what happens? I also have a plum in same situation. One's great, the other is bad.
Apricot Tree Problem
You can check the apricot that looks dead to see if it is truly dead. Bend a twig, if it snaps with an audible crack, that part is dead. If it bends, there is probably still life in it. Check several places on the tree. If the twigs keep snapping as you get closer to the trunk, there will be problems. (At our greenhouse, we call this the "snappy, bendy test". It isn't very technical, but it is accurate!) If the apricot that looks dead has a lot of bend in the twigs and small branches, keep it watered, and hopefully it will be ok next hear. You can also scrape some of the bark on the twigs to see if cambium layer is green. If so, the plant has a chance. The same goes for the plum.
Have you had your soil tested? If not, this might need to be done. Call your local agricultural extension office to find out where to send the sample. the results of the test should give recommendations on what would be best for your fruit trees.