My pear tree died this year. It was never happy in my garden. It would produce blossom but it would never set and just withered.Indeed, it's been the best year I can remember for fruit and berries in my garden this year. I've got a dwarf pear tree as well and that gave me dozens of pears.
My plum tree however produced 2 plums last year and was absolutely covered in them this year. No rhyme or reason to it.