40 sad and neglected apple/pear/asian pear trees need your guidance! or should I get rid of them?

Hello Fruit Friends!

Here is my current tree count:
40 pears (at least 1 is Asian pear. probably most are)
9 peach (one is likely flat wonderful)
9 apple
3 pawpaw and several small shoots which produced fruit last year
4 fig (these I planted and I am sure they are fig!)
2 crabapple - not sure if they are meant to be the eating kind or not. they’re pretty either way.
1 mulberry
2 complete mysteries - in a row with other fruit trees but no flowers yet. One looks to me from pictures of bark like it might be a persimmon?

That is 67 trees!!

I am continuing to learn to care for them. I have been trying to track the trees and do some spraying. I managed to spray some oil, but I don’t think I did a good enough job - then everything started blooming. I’ve managed to spray one of the apples with copper based on a different thread. I tried to do a spray for brown blossom rot for the peaches, since I’ve been told it’s a problem here, but it rained very soon after, so I don’t know how well it worked (immunox, so would have been fine if it dried).

@clarkinks and other pear people- is this pear leaf blister mite damage?
Some of my pear trees have leaves that look like this:


Above a picture of some young pear leaves with red indentations.
If so, my understanding is that I can’t do anything and need to wait until next year when the adults are at the base of the leaf buds to treat it. Is that correct?

I was not planning on spraying the pears unless I noticed some problems based on this thread:
https://growingfruit.org/t/fungicides-for-pears-for-home-users/38644, but now I’m rethinking.
I have pictures of trees from last year where some of the pear trees clearly have Fabraea leaf spot and I know I can spray for that - advice seems to indicate I can wait until trees show signs of it before spraying? Or should I spray in advance?

Also, if I KNOW I have cedar-apple rust how likely is it that I have pear rust? I am completely surrounded by eastern red cedar and have seen galls last year. I know if I have rust I have to pre-spray since immunox/myclobutanil/rally and the other similar fungicides aren’t approved for pears (apparently if you can spray myclobutanil you can wait until you see the galls release spoors then you have four days to spray).

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