Brown/black spotting: Burns?

[Ray]

I would speculate that it's a bacterial or fungal infection. As it's hard to diagnose easily, my first attempt at a cure would be a systemic treatment containing copper.

[bil]

Originally Posted by Ray

I would speculate that it's a bacterial or fungal infection. As it's hard to diagnose easily, my first attempt at a cure would be a systemic treatment containing copper.

Ray, so copper treatments are OK for orchids? For some reason I had the idea that they weren't.

Thanks for that tip.