My Robertson orange tree has a couple of things happening with the leaves. I'm not sure what if anything is the problem. Any help with identifying the problem/issue and solution would be appreciated. Thanks.

Is this a fungus?
http://i171.photobucket.com/albums/u307/zymurgist_album/fungus.jpg


Not sure what these spots are?

http://i171.photobucket.com/albums/u307/zymurgist_album/spots.jpg

I don't know about the first -- I have never seen that on my trees or in what I have read.

The second picture looks like it could be Greasy Spot-- it is a fungal disease. It can be reduced by keeping the leaves cleaned up under the tree. Copper spray can be used to treat it.

Here is a link: http://edis.ifas.ufl.edu/HS263

Hello,
that appears to be a trouble I got when I have applied too much fertilizer on all my trees, unluckily
Sorry for my poor English
Best regards
Robert.

Hmm. I'm thinking that it is probably not a problem with too much fertilizer. Prior to finding these forums, I've been somewhat neglectful of my 2 citrus trees and underfertilized by a fair amount.

I've searched the citrus disease links and haven't found anything at all like the orang-ish stuff at the bottom of the leaves.