Fernando,

It is not unusual for a fig tree to come back with more vigor after dormancy. Especially here in the South, a tree's roots continue to grow during the dormant period which is why we are told to plant new trees in the fall/winter compared to Spring in the North. As for the FMV, I really doubt your temps got down below what the Northerners experience every winter and their plants are still infected. FMV is tricky because it is not always obvious and often becomes less apparent as the tree ages. Good luck!

Fernando:Good News:I had exactly the same experience with the same cultivar.
I think,it is stress what some new fig experience,when young without a strong large root system.
And stress manifest in diformed leaves too,giving the impression,is FMV,symptoms.
I am sure your plant will never return to the bad shape it had in the past.
So Chiers!!

Herman,
I also remember you having the same experience
with Ischia Black, which so far is the most FMV
suffering fig I ever had....

Yes George but so far Ischia Black is helpless.
It is still one foot tall now(may be).
It has a couple of fruits as large as a small blueberry now,so I think it will ripe them this year.
Last year fruits did not ripe,till frost.

Herman,
Due to your observation on the IB; I air/layered/cut-off
my little FMV suffering (UCD) specimen to within
~2 nodes above soil level. Miracle of miracles,
that same year it grew 2 feet
(yes feet, rather than the 1-2 inches it did before).
and seemingly FMV free. Sadly I lost it 2 winters ago.
So, I am now starting back again with the air-layered
remnants. Is it time to give up on Ischia Black?...

I think we should look oversee for a healthy specimen,and get cuttings.
I am sure there are a lot of clean,Black Ischia in garden,all over even in the south of USA.

My sick ischia black has seen garage temps as low as 6 to 8 in winter it wont die and still stunted.
I posted on other forum about 1 i had in lab for 2 years and it was shipped back but there was no interest in that thread.
Martin