Peach Fuzz? Please help!

[Sweet Pea]

Hi Everyone! I recently re-potted my oncidium because I noticed that there was a very fine layer of what looked like peach fuzz on top of the potting medium after I watered it. It's just on top of the potting medium, and I thought it was best to re-pot it. I removed all of the old medium, rinsed off the roots, and put it in a new pot. All was well for about a week, and today, after watering it, I noticed that the peach fuzz was on top of the potting medium again. Is there a reason why this stuff keeps appearing after each watering? Any suggestions?? What is it? I only water the orchid once a week. Please help!

[betwixtimes]

How's the airflow around the orchid? It could be that the moisture and humidity + ambient temperature is causing mold. You could try placing a small fan by your pot...?

[Ross]

Sounds like common mold. I spray with a Physan 20 solution.

[Sweet Pea]

Thanks for the tips! I was thinking it was an airflow problem. I'll try the fan. I also moved them by the window and hopefully opening them at night will help.


Thanks!