Sunburn?

[Ross]

Originally Posted by Blondie

I sterilized my shears and cut the leaf off. It was a little loose, so the entire leaf came off. It's kinda hard to water this little guy without getting those bottom leaves wet somehow. I've been using the faucet in the sink. I think I will switch to some sort of watering can mechanism with a smaller spout.

In my experience, you've done the correct thing. The fact the bottom leaf fell of is no real cause for concern unless others fall off as well. It's pretty common for older leaves to yellow an fall of. It's not too common for rot, however. So just watch the plant closely. There are other discussions regarding systemic treatments on orchids where you supect widespread rot. Thiomyl is the one I use, which is a systemic.