I planted an Oh Henry peach tree last spring. In the middle of summer it started loosing all of it's leaves but kept putting out new growth. (the baby leaves would fall off as soon as they got to a decent size.

I was going to dig it up this spring and replace it but then it looked great up through bloom, Strong and Healthy. Now that fruits have set it looks like the sickness(?) is back. The fresh leaf growth is dying off and the older leaves are turning light green with dark green veins.

Please see the photos:

The fresh grown turns yellow and dies off:

There seams to be a lot of leaf dieoff on last years growth. Notice the long bare branches:

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It looks like this disease has moved to my mature trees now too. Last year my mature trees were super happy and healthy, now they are also getting this light green leaf with dark green veins and young leaves are turning yellow and falling off.

Any ideas what's causing this? Please help!