Difficult to see details because the color is off.

Orange2: Possibly weed killer
Orange4: ?
Orange: drought stress (ran short of water some time ago). Possibly also leafminers. (Difficult to say for certain.)
Orange3: ?; not much obvious except that leaves are gone.

hard for me to see because it's blurry. Drought stress will do that sort of damage, if I am guessing right. Could be bugs... better pics would help.

Exploring the 'bug' possibility.....what 'bugs' are out there that can do things like this?

As has been said by several folks, it's difficult to see details in the fuzzy photos.

So far, 3 things have been suggested -- week killer damage; leafminers; and drought stress.

None of those 3 are final diagnoses because we can't see the necessary detail.

Can you try again with different pictures?

Cheap camera .......stuck with those pics
No weed killer is ever used.
well watered tree..-(if not over watered)

Are leafminers the only critter(s) that can cause this type of damage?

Unstresst, are the citrus in the pics your trees???
Could the damage be caused by the fires?
Of what I can see, their leaves look dried out. I don't know if it's insect damage or not, but if that's the case, your citrus have a bad infestation.
I'm not sure what type of damaage LM'ers cause..Thank God..never dwelt with them. But every so often an insect, such as mites, scale, have found one of my trees, but never caused that much ruin..
How close are you to the fires? I wonder if smoke damage would cause as much damage as the plants shown on that website.
I'm so sorry you guys are going through hell right now w/fires blazing. I hope and pray CA gets a good rain..Toni

.....I don't THINK we were close enough to any fire -(10 or more miles away)

i wonder if it could be mineral deposit from hard water. i have seen sort of a white film covering leaves and stems of plants watered with that type of water in some green houses and nurseries.
sue

too much water will also do it. I forgot what size pot you have it in? If you have it in the ground, I'd only water once a week and deeply.
I am not sure what bugs you have down there... the only thing up here in Sacramento that would do that would be a really bad aphid infestation... or that's all I've run into so far. I've never really seen leafminers here, thank goodness! I thought they left little tunnels.
Do you have a Sunset Gardening book? I have a Sunset Problem Solver book which is helpful...

hmmmm
overwatering and/or hard water are both possibilities.......
thanks for input