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    • Disease and Insect Resistant Ornamental Plants: Ulmus (Elm) 

      Thurn, Mary; Lamb, Elizabeth; Eshenaur, Brian (New York State Integrated Pest Management Program, 2019)
      Ulmus is a genus of mostly large, deciduous trees found throughout much of the Northern Hemisphere. Until the introduction of the Dutch elm disease pathogen in 1930, the American elm (U. americana) was one of the most ...