Weird orange growth on Kaffir lime
I just noticed a couple of days ago that there is a weird bumpy layer of orange growth on my Kaffir lime tree branch at the very top of the tree. It hasn't gotten bigger or changed at all since I first noticed it. I tried to scrape it gently with my fingernail and it holds without any damage. That's the only area on the tree that has it. Otherwise, the tree is doing really well and have recently had a growth spurt, holding on to all of its new leaves. Sorry, I didn't have time to take a picture of the whole tree this morning. The photo is of the orange growth.
Anyone encounter this before? Any information would be greatly appreciated!!