Im trying to get my drip irrigation finished. I ran 2 different 3/4 pvc pipes for drip irrigation, so I could put different plants on different schedules. How should I go about it for the fruit trees. I ran 3/4 pipe underground and then stubbed 1/2 flex pipe up near search tree and then I thought I would run 1/4" tubing to individual emitters. Should I just put 1 emitter near each small new tree. Do my older trees need irrigation?

I attached a pic for reference. I just got done running the underground PVC. After backfill, I will smooth everything out and put down cardboard and then wood chips