Like other North American birches, gray birch is highly resistant to the Bronze birch borer (Agrilus anxius).
In the 1970s the Bronze birch borer began killing the birches with the last of the original birches dying in 1997.
Bronze Age | Bronze Star Medal | bronze | Birch | birch | Bronze | bronze sculpture | Birch Bayh | John Birch Society | Nordic Bronze Age | Ion Birch | bronze age | Thora Birch | Simon Birch | Martin Birch | Diane Birch | David Catlin-Birch | Bronze sculpture | Birch Creek, Wisconsin | Birch Creek | Much Birch | Lucy Bronze | John Birch | Emerald ash borer | Edna Birch | Doc Savage: The Man of Bronze | Charles Bell Birch | Bronze Tiger | Bronze Star medal | ''Bronze Malle Babbe'', by Kees Verkade |