Can anyone please ID this disease?

[Orkine]

First I cant confirm this is a disease but I had never seen it on my trees and it seems to have occurred after a severely vet period.
It look like a tan blotch wrapped around the stem and branches.



Should I be treating this?  What is it?

[Mike T]

https://www.agric.wa.gov.au/plant-biosecurity/pink-disease-citrus-pest-data-sheet
http://www.fftc.agnet.org/library.php?func=view&id=20110708000535
https://www.daf.qld.gov.au/business-priorities/forestry/pests-and-diseases/pink-disease
Could be pinks disease as it can be grey or even white. The description is well into the second link.

[Vlad]

Looks like harmless lichen to me.

[Orkine]

Looks like harmless lichen to me.

Lichen I know and recognize.
I you look about the middle of the center picture, there is this tan patch around the main trunk. Thats the new condition.

[Yorgos]

The trees look kinda thin and sparse. Although I cant get clear resolution on the pics.   Something is going on for sure.

[Millet]

Use your computer and look up Citrus Leprosis virus.

[Orkine]

Thanks, I did look up Leprosis and it was the closest to what I observed.
I wanted a second opinion because Leprosis apparently no longer is present int he US.  I live in Florida and in the last 5 to 6 months some extension staff from USDA I believe have been doing some kind of citrus study to protect Florida Citrus came by the house and added the trees to survey of sorts.  They left a flyer to contact them which I promptly set aside now I wish I had kept it because if this is Leprosis I need to notify someone quickly.

Is anyone else in Florida aware of or part of this study?  Or who I can reach out to regarding notification and confirmation?

Just want to do the right thing.

[Millet]

I just red an article recently concern over leprosis has rekindled due to extensive immigrant population in the Miami area.   The control of leprosis is not difficult. Successful control of leprosis can be achieved by the use of acaricides to reduce mite populations.

[Orkine]

Thanks for the info.
I will explore that option.