Pretty old apple tree in the garden which produces hundreds of not-great-tasting apples every year looks like it’s in a bit of a state. I had to cut back a weird branch that had been cut before, presumably because it shot out horizontally, and there’s a ton of rot.
It’s not in danger of hitting any buildings if it ever does fall, although could maybe take out a distracted child or two if I’m lucky.
Is there anything I can do to save it?
Yikes. I'm no tree expert, but it will probably continue to rot all the way through. I would have it taken down.
But! If you want to continue having a lousy tree produce crappy apples, you can take cuttings or do air layering and start one or more whole new yucky apple trees!