It's judgement day for leaf spot.

[Angurek]

All right. I'm through being mister nice guy with leaf spot. It's having a picnic on my orchids, and I won't tolerate it anymore.

I decided to pull out the big guns, but I need to know which fungicides are safe enough to use on orchids. I'm considering using physan 20 on my plants, but I need to know more about it, and what my other options are.

About a third of my collection is infected as of now, and more plants keep getting infected as time passes. If I can't get rid of the disease, I'll have no choice but to trash and replace the most badly infected plants. I'm hoping I don't have to resort to this, but I'm desperate.