Unknown problem. Peach and nectarine (forum)

Fruit tree 101 starts with ...
I got a dwarf peach and nectarine tree from Daley's. Both started well but now seem to be struggling.

The peach has lost most of its leaves.

The nectarine still has lots of leaves but isn't getting bigger and seems to have something sticky (maybe SAP) at the tips of new growth.

I included two pics of the nectarine and one of the peach. Any ideas on what the problem is and how to fix it?
Pictures - Click to enlarge

Picture: 1
Picture: 2
Picture: 3

Time: 25th February 2016 5:11pm

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About the Author Fruit tree 101
Sydney
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Scott 10 says...
Take a soil sample into your local nursery and see if they can test the pH for you. There could be several reasons but this could possibly be the reason.

Time: 16th March 2016 5:18am

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About the Author Scott 10
Redlands
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Asimili says...
Diagnosis is gummosis . No cure . Take a sample of soil to nursery is as sensible as writing a letter to Santa. As if they cared.
Another possibility is phytophthora , a soil fungus . Check roots for characteristic changes to confirm

Time: 21st March 2016 5:00pm

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sYDNEY
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echinopora says...
I find at my place the dwarf stonefruit are really prone to damage from coddling moth. The larvae destroy the growing tips, which then brown off and gum up. On a standard peach they can push out new growth fast enough to overcome any fungal and coddling moth issues, but the dwarfs are just too slow to take much damage. I would try to cut back all the affected tips and do the lime sulfur paint thing to kill any overwintering bugs when it goes dormant. Then net it. If you use pesticide find one that kills coddling moth.

Rob

Time: 23rd March 2016 10:23am

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