ends of peach tree branches are bare and look dead

Question

I just sprayed fish emulsion and nitrogen on the trees 3 days ago, but the bare limbs have been going on for some time now. Thanks for any help I can get.

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Answer 1

I need a little more information - there are so many reasons for twig dieback that I would like to try to narrow this down a little.

Have you noticed any rosettes or little leaves like this:
http://www.clemson.edu/extension/peach/faq/peach_faq_files/nutrion_crop/zndeficiency8.jpg

Have you noticed any amber colored gumming like this:
http://www.ipm.ucdavis.edu/PMG/IMAGES/P/D-AM-PSYR-TR.012.jpg

Any blackened tips:
http://i189.photobucket.com/albums/z285/lycheeluva/P1040747.jpg

Any wilting or flagging:
http://jenny.tfrec.wsu.edu/opm/opmimages/PTWf3.jpg
http://jenny.tfrec.wsu.edu/opm/opmimages/OFMf3.jpg

Or anything else unusual? What percentage of the tree is impacted thus far?

For more information on common peach tree diseases, please visit the following link:
https://www.gardeningknowhow.com/edible/fruits/peach/common-peach-diseases.htm