Plant Pathologists HELP!

[milehigh_7]

So it’s just this one plant?
If the others are in a similar medium and getting similar sun exposure and water then it does make you wonder…

In the first photo there appears to be a white fuzz/speckles on some leaves. Is that natural to the plant? Is your tree positioned next to a clothes dryer vent?

Could we please get closeup pictures of the fuzz, undersides of the dead leaves, and also where the necrosis is beginning to spread?

Another thought, how old is this plant? Google says they live an average 15-20 years.

Actually I don’t know what the white is. No, it’s on the side of the house from the vent. I’ll get the pics you asked for tomorrow. I have no idea how old it is I got it from Lowe’s about 5 years ago. I know they live in landscape much longer than that. I have one sitting right next to it in the same medium of pumice and it’s quite healthy.