fbpx Plant Health Care report issue 2020-9 | The Morton Arboretum

Plant Health Care report issue 2020-9

July 24, 2020

The scouting report of The Morton Arboretum for July 24, 2020.


PDF iconPlant Health Care Report issue 2020-9


Quick View

What indicator plant is in bloom in Dupage County?
Queen Anne’s lace (Daucus carota) is beginning to flower

Accumulated Growing Degree Days (Base 50): 1658.5 (as of July 23)
Accumulated Growing Degree Days (Base 30): 4168.5 (as of July 23)


Insects/other pests

  • Grubs in the lawn
  • Zimmerman pine moth
  • Galls, Chapter 4



  • Bur oak blight
  • Rust on lawns
  • Guignardia on buckeye








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