I had the salt content of my water tested by the people who test my pool salt content. I was given the reading of 0.4 ppt Wich I take as parts per thousand.
The lady doing the test new I was testing tap water and stated it was low, but maybe she is used to a high content in pool testing.
I have not been able to find what is an exceptable level for plants in this salt measurment.
I am now getting very frustrated with this leaf burn. It is also badly affecting my hornbeams. Last year I built my shade house to help. I tought I was well on my way to solving the problem again this year after moving trees to cooler spots, but as in picture new shoots from this last week have burnt again. Yet another hornbeam much larger is now happily growing new shoots above it.
The temps are not getting much above 30 deg celcious.
If it is not the salt content then maybe I just have shite root systems on these trees.
The trees seemed to be growing fine at this temp in the spring.
We are in a very bad drought at the moment could it be as simple as lack of miosture in the air. This I find hard to believe because tridents in the ground are growing fine.
Thanks for the help
