citrus trees need help

[loffelkopffl]

My tangerine tree and tangelo tree are in bad shape, the tree trunks and branches are covered in moss and the leaves are covered in a black something, not sure if it's from acid rain, Any suggestions?
thanks

[kalianna]

Probably black sooty mold on the leaves. Spray with vinegar and wipe them down. Fertilize them well. Pull off some of the moss and look to see if you have some kind of tree borer insect and treat with tea tree oil or pesticide.

[Ccat]

My tangerine tree and tangelo tree are in bad shape, the tree trunks and branches are covered in moss and the leaves are covered in a black something, not sure if it's from acid rain, Any suggestions?
thanks

very good response as to cleaning moss off trees, etc.

also, it might be a good time to plant replacement trees in a new, different location.  We sometimes forget that age is not kind to plants, either.  Citrus is slow to mature.

(I adore everything about citrus!)

all the best

Ccat

[1@3_aBc]

I think the eruption caused problems with our fruit trees.
the avocados took a hit but one seem to be recovering now.
It has some nice fruit.
Just not as many as it should.
The other two trees are bare.

The citrus are coming back more slowly, but seem to be getting somewhat better.
Wind storm blew an ohia over that smashed our lemon.
I took it out.
The orange and satsuma are doing quite well now.
The Honey's and the unID'd tangerines are still under the weather.
One of the Honey's was put in by the former owner.
It's not doing well.
I'm gonna take it out.
The other Honey that I put in has a scab infection or similar.
I'm going to severely prune it and treat with a fungicide.
Hopefully I can bring it back.

Black sooty leaves usually means a mold from sugar on them.
Probably from tree sap.
It needs to be cleaned up.
It'll draw ants.

I wouldn't worry about moss on the trunk or branches.
We live in a wet climate.
Moss will grow on tree bark.
The wet climate is not the best for citrus.
They prefer things a bit drier and sunnier.

[Space Karen]

branches are covered in moss 
thanks

If the patch of moss goes completely around the trunk / branch.

It might trap water against the bark.

Causing wood rot to develop eventually.