I posted this question on the Tropicals forum, but am asking here as well. I have attached a link to my other post so you can see the pic of my EE leaf, and get all the details. I think it may have rust? Only one leaf affected. If it's not rust what the heck can it possibly be?

please see link.

TIA for any help anyone can give.

Daniella

Here is a link that might be useful: my post on tropicals forum w/pic