Hello,
I've planted the tree 4 years ago, first 2 years seems to be ok. Later it started to get some kind of disease (maybe fungus), which cased it leaves to turn yellow and then black, starting from tips. It happens in May, this time. So, in the middle of the summer, all leave growth becomes inhibited and it dies. Then, it starts growing from the bottom until end of the October. See pics.
I used these fungicides and they don't help me:
Please help.
I've planted the tree 4 years ago, first 2 years seems to be ok. Later it started to get some kind of disease (maybe fungus), which cased it leaves to turn yellow and then black, starting from tips. It happens in May, this time. So, in the middle of the summer, all leave growth becomes inhibited and it dies. Then, it starts growing from the bottom until end of the October. See pics.
I used these fungicides and they don't help me:




Please help.