black spots on pear trees
Every year our pear tree looks fantastic with blooms and then these black spots show up all over the leaves and most of the blossoms dry up. Why?
There are a number of possible diseases that this might be, impossible to say what it is without an in-person analysis. The best thing to do is to talk to the folks at the county extension service, before the tree flowers, and then later you might want to take in samples. This link will help you locate the nearest office:
In the meantime, make sure that the cultural requirements of the tree are being met - a strong tree has the best chance to ward off disease and pests. https://www.gardeningknowhow.com/edible/fruits/pear/growing-pear-trees.htm