Odd mold brown stuff

[This Side of Paradise]

This brown stuff has appeared on a few of my phal, it has ignored of my other orchids. Anyone have a clue what it is.

I use a lot of neem oil i was curious if it could be a accumalation of oil deposits?

[Zoi2]

Does it come back when you wipe it off?
Joann

[This Side of Paradise]

about a week later

[Zoi2]

Can you wipe it off with a Q-tip and alcohol then increase the air circulation around the plants? I've had something similar on seedlings I've kept the humidity up on. After the increased air circulation, the plants were fine.
Joann

[This Side of Paradise]

ill try that. Any idea what it is though?

[Zoi2]

I kind of assumed it was a type of fungus, but I didn't repot the seedlings so I also assumed there were no spores in the potting media. So....nope, I don't know what it is.
If it comes back, I would probably use a Q-tip with brown listerine to clean the plant and repot it in fresh media though.
Joann

[This Side of Paradise]

It's back. Did the listerine thing and upped the air flow and still it comes back
Any other ideas