dwarf peach @dwarf nectarine

I purchase a dwarf peach and nectarine trees about 3 years ago, they both have been in separated barrels all this time. never have fruited , or flowered and at this time they look horrible. Placed south /west exposure, I realize now they may have gotten to much rain?. When do you finally get them out of there misery? they seem to have some kind of cankers on them

 

use ammonium nitrate on them....now that it is spring!

Peach trees are suseptible to over watering?
if the soil drains adequately...there should be no problem.
Have you used any dormant spray...I would.

 

thankyou. I thought it was to late for that?

 

it looks as if the tree are getting diseased, I'm not sure what it is. I hope a seasoned pro steps in here to give some advice for the trees sake