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Attacking the trees

I’m reading an article about the possible demise (functional extinction) of the eastern hemlock tree due to a tiny Asian invader called the woolly adelgid. I’m aware of some problems with other species and there are some listed in the article that I never knew about:

  • Chestnuts - Asian fungus spread by rain, wind and birds
  • American elm - Asian fungus spread by European beetle
  • Wild flowering dogwoods - fungus of unknown origin
  • Sudden oak death and oak wilt - fungus
  • American beech - European fungus
  • Ash - Asian beetle
  • Sugar maple - Asian long-horned beetle
  • NONE, NADA, ZIP, ZILCH

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