I  got this fig from a friend of a friend, it came from Lucca, Italy. It is a dark fig, I got the fig in September. The spot started out as a darker green ,the other part of the leaf, was it's natural color. Now it is turning brown. Should I remove the leaf? Has anyone seen this before? It's been under lights since the middle of Oct.

Thanks Bugs

They are under fluorescent lamp, about 4" off the top leaf , the plant is 12" tall from the top of the pot, the spot is in the middle of the  plant. The temp is 70 degrees.

Here is pic of my set up. How can one tell if it is truly a disease or mosaic virus?

If you look, there is a water drop on the leaf, and the bottom on the right of the leaf is wet. I do not know what is going on, never had this happen be for.

I am going down to remove the leaves, trash is on Monday. Thank you for all your time and help. Bugs

Looks like rust. Good idea to remove them.

Looks like leaf scorch to me. 

Like Satellitewhead mention thats leaf scorch.
Its not mosaic virus in my opinion .
Have seen leaf scorch many of times thruout the years and that exactly what it looks like.

What causes leave scorch, and is it bad for figs?
How do you stop it from coming back?

 I removed the leaves last night.

Thanks every one for your in put, it was very help full.

Adan- I read the fact sheet and it did help to under stand. I am glad that leave scorch is just stress, I can handle  that.

My cutting-trees are 15" to 18" tall and in 1 gal. pots, and are growing by the week. They have grown about 3" to 4" from the time I brought them in. The stress just started.

If you have very low humidity, that could also be contributing to the problem.

Take a plant from indoors and place in sun you will see that occur.
Take a plant thats already outdoors and rush it into the sun wiith out slow assimilation and you may see that.
There is always the exception though and i have seen that as well .
Just my thoughts.

I agree with Martin. Leaf scorch is caused by moving a plant into direct unfiltered sun when it was previously not in direct unfiltered sun. Never seen it caused from stress or transplanting, unless the transplant was into full sun after not being in full sun before.

Many plants have problems with leaf scorch. This is part of the reason "hardening off" is common practice. If I don't gradually acclimate my tomato and pepper plants (started indoors), they will also leaf-scorch and die. Just a fact of life for many/most indoor-grown plants.