Why is my pear tree leaves turning black?

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Tags

1. #twigs
2. #called
3. #leaves
4. #turning
5. #questions
6. #springtime
7. #branches
8. #appears
9. #about
10. #there
11. #brown
12. #blight
13. #trees
14. #disease
15. #usually
16. #during
17. #quickly
18. #apple
19. #black