It looks like some kind of rot to me. If it's just the one leaf, cut away
the bad stuff. Sprinkle the cut edge with cinnamon and keep an eye on it.

No chance it got sunburned at some point is there?

Diana

"Faz" wrote in message
news:MHRak.72923$gc5.21178@pd7urf2no...
Can anyone identify my problem? It's on the leaves and I don't know what
to do.

Thanks,
Chuck.