I've had this mango for a few months, I potted it a month ago. I made the mistake of putting in a decorative pot that did have drainage but didn't allow moisture to evaporate well. It's now in a terracotta pot, and has its original soil mixed with cactus soil that's a little more hydrophobic. This looks like leaf rot on the only leaf. There may have been some spores on the seed as well but I'm not sure. How do I get rid of the rot? Is this a lost cause?
Tldr; mango plant leaf rot. What now?
by FlounderTight5992