At this stage of development, I doubt that anyone could identify the variety. You'll probably have to wait until they're mature - and even then, it may be something of a guess. Check out the paintings &/or photos at the NCGR site, linked below. Here is a link that might be useful: NCGR Pyrus

I do not know how long this has been on the tree trunk/bark. It appears to be mud as opposed to disintegrated tree bark (but it could be). It runs from the base of the tree which is in pea gravel up to the main fork in the tree. I do not see any insects (termites or ants) and the neighbor closest to this tree is repairing termite damage as I type. We recently renewed our termite contract which called for a retreatment of the property. My husband pointed out the tree and was told it was okay. Any help is appreciated. Image link:

^if everyone took that attitude then they would overtake our wetlands. the fact that MOST people cut them down due to their reputation, helps stop their spread. if everyone walked around saying, my little effort won't help, then of course we'd have a bigger problem, especially when you consider all of the seeds just one tree spreads year after year after year. the same as littering. if everyone walked around saying, oh my little can of coke in the parking lot is no big deal, then we'd have a hell of lot more of a mess than we do now. and no, i'm not a liberal and i don't believe that humans are responsible for global warming. and no, i won't condemn the guy if he chooses to keep his tree because he can't afford to remove it and replace it or if he has a good reason.

That's one of the many leaf-roller caterpillars. Messy, aren't they? And yes, the dark pellets are frass (insect poop). The adults will be a rather plain moth...and that's when the egg laying comes in. Those teeny babies nicely pictured in that one image hatched from eggs laid on that leaf. If you learn to look for the small eggs and remove them, you'll not have the caterpillars. Bt can be used to control this caterpillar pest, though it is not particularly effective when they are at the large stage. It's most helpful on the little guys. Bt is relatively safe to use (some people have allergic reaction), and is easily washed off. These (and other) caterpillars have a very wide array of natural predators and parasites to help you keep them under control. Rather than cutting away branches and tons of leaves, just remove the caterpillars. They don't sting or bite. And do an egg search. Attached is a fact sheet about the specific leaf-roller I believe yours to be. Florida is one of the many states in which it is found. The squiggly lines pictured in a couple of your images are from leaf miners, very commonly found in tomatoes. Simply remove affected leaves....or just ignore them. They rarely do enough damage to cause problems for the crop. Here is a link that might be useful: Click here