Watched an interesting PBS TV interview about the work done to produce a decease resistant (mostly) American Chestnut which may become prolific again with a bit of help. here is an article dealing with the subject.
https://www.americanforests.org/magazine/article/revival-of-the-american-chestnut/
https://www.americanforests.org/magazine/article/revival-of-the-american-chestnut/
