Blacks Spots - Zygopetalum Leaves

[Bethy]

These leaf spots on this zygopetalum don't seem to be spreading. Do you think it is just bacterial spotting? Do you recommend spraying with Soluble Copper?

[rbarata]

Zigos are prone to have leaves spotting.
The best solution is airflow, being the best grow it outdoors.
BTW, those leaves are in really ggod condition, according my standards.

[Leafmite]

Those do not look too bad. If you are worried, give them a little added Calcium. You could even dab at the spots with some Isopropyl alcohol. I do not think they need a copper-based fungicide from what I see. I have Zygos and they tend to spot more when it gets warm for me as the heat stresses them. Not sure what type of Zygo you have whether this might be a factor.