fbpx Plant Health Care Report issue 2020-1 | The Morton Arboretum

Plant Health Care Report issue 2020-1

April 3, 2020

The scouting report of The Morton Arboretum for April 3, 2020


PDF iconPlant Health Care Report issue 1 for 2020



Quick View

What indicator plant is in bloom at the Arboretum?
Vernal witch-hazel (Hamamelis vernalis) is in full flower

Accumulated Growing Degree Days (Base 50): 6 (as of April 2)
Accumulated Growing Degree Days (Base 30): 453.5 (as of April 2)



  • Winter weather
  • Using growing degree days
  • Timing use of fungicides
  • Crabgrass preventer
  • Animal damage


Insects/other pests

  • Viburnum leaf beetle
  • Egg masses and more
  • Magnolia scale



  • Cankers



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