Here is a closeup of the scale on the pear. Quite a bit of the scale is dead but the tree is loaded with them and is dark from the honeydew fungus.

This is personal for me; but I really hate ornamental pear. It is a worthless tree that produces nothing, is very susceptible to wind damage and is a host to a lot of diseases.

I would cut the ornamental pear at the ground and curse its spirit; but as I said, it is a personal thing. If you like it, keep it; but you need to treat it twice per year with Imidacloprid That will prevent your pear from "sharing" its frailties with its neighbors

LOL! Thanks Johnmerr. I had a small ornamental pear in a former yard and it was a very pretty tree but this one may be sharing too many pests with my citrus. I would take it out in a heartbeat if I knew it would reduce the number of scale bugs on other trees in my yard. The good news is that I hear ornamental pear is great BBQ wood! I'm not quite sure how to handle my scale bug infections since they seem to be active during my hot season and I'm afraid to use the oil products then. I personally think my hard-packed anaerobic soil is stressing my trees and there isn't a lot I can do about that except to dig huge holes for future plantings and replace the soil with a more sandy loam.