3 yr old 6 ft Weeping Fountain Cherry dying....help please!
I really need your help here. My Weeping fountain Cherry is dying all of the sudden. It had a beautiful blooming season as usual, but once the leaves came in, they started to yellow and drop. You would think it is autumn or something. I noticed on the trunk near the bottom a deep amber hardened blob against the trunk. I thought/think it was sap that oozed and hardened. I am not sure if that has any bearing on the tree's present state. It has been sprayed and fertilized, and gets watered with a drip hose nightly and in the morning, and is in a rich soiless pro mix (sunshine mix) As I said it has flourished for the last several years, and all of my other trees (I have 22 of them on my rrof deck) are doing swimmingly. Any help or diagnosis would be appreciated!