Pests or infection?

[Leafmite]

I am glad you are finding help. If I have no experience with something I just cannot offer advice. The yellow halos usually indicate fungal infection. It infects through spores which can travel by water or air and prefer damp conditions. Isopropyl alcohol dries and kills the spores (but you should never get the alcohol on the roots--it dries them, too).
My Phal bellina leaves now have a bunch of yellow spots as water dripped from one of my mounts and I didn't notice right away. With the cooler temperatures, spots. I did catch the fungus with the alcohol so it did not get worse but the upper leaves aren't the prettiest. With Phals' slow growth, it will be a few years before it looks presentable.

[Jenn4a]

Thanks!
When I first cut off areas that I assumed were fungal infections, the cuts appeared to be reinfected even though I applied alcohol and cinnamon on the cuts. It just happens that two of them that were reinfected were leaves holding the "gunk" that I cut off.
There's one leaf that looks reinfected, and the other one I haven't touched is new. It doesn't look like it is spreading as quickly. I wiped most of the leaves with copper fungicide.

During the repotting:
When I cut off the leaves from the base (gunky areas), I knew I risked spreading infections, so I used a dropper of peroxide on the cuts. Everything was bubbling fiercely... Even before cutting.

From a couple days ago; the halos are hard to capture.

[Orchid Whisperer]

If not cold damage, then this is a bacterial infection. Cut off leaf tissue with this kind of damage (cut outside of the infected tissue, into healthy tissue). Be very careful not to water or mist the leaves. Observe the plant a couple times each day for a couple weeks until you are sure there are no new infections.

[lepetitmartien]

Mhmmm the last leaf, if there's new necrosis spots, check the forms of them. I see one round and one maybe diamond like. I won't push guignarda/phyllosticta fungus without more signs (it can be coincidental) but it's a track to follow.

[Jenn4a]

Oops, sorry! I haven't been checking my threads.
I'll post new photos in 20-40 minutes.
1:A leaf that I cut already that is still turning brown; it looks like photos I've seen of anthracnose, but it could also be that it's just an old growth dying off.
2:I'll post a new photo of the same leaf *the same leaf from the last post*. I believe the spots are growing in size, but slowly.
3: New growth that is a goner; I was warned by members of ST that the growth it toast. I'm not sure what is causing/caused it. There is one green leaf left of that growth, but the center leaf is dead.

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