Plant Health Care Report Issue 2018-11

August 17, 2018

The scouting report of The Morton Arboretum for August 17, 2018.

PDF iconPlant_Health_Care_Report_2018_11 (PDF)


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What indicator plant is in bloom at the Arboretum?
Seven Sons flower (Heptacodium miconioides) is getting ready to flower GDD).

Accumulated Growing Degree Days (Base 50): 2297.5 (as of Aug 16)
Accumulated Growing Degree Days (Base 30): 5111.5 (as of Aug 16)


Insects/other pests

  • Tussock moth caterpillar
  • Grubs in the lawn
  • Home invaders
  • Brown marmorated stink bug
  • Viburnum leaf beetle update



  • Watering into autumn
  • Seasonal needle drop



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