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Plant Health Care Report issue 2017-7

June 30, 2017

The scouting report of The Morton Arboretum for June 30, 2017.

 

PDF iconPlant_Health_Care_Report_2017_7 (PDF)

 

Bartlett Tree Experts--Presenting Sponsor of the Plant Clinic

 

Bartlett Tree Experts, Presenting Sponsor of the Plant Clinic

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What indicator plant is in bloom at the Arboretum?
Wild hydrangea (Hydrangea arborescens) is in flower

 

Accumulated Growing Degree Days (Base 50): 988.5 (as of June 29)
Accumulated Growing Degree Days (Base 30): 3244.5(as of June 29)

 

Insects/other pests

  • Japanese beetles
  • Kermes scale
  • Good guys
  • Eggs..no side of bacon
  • Grape phylloxera
  • Galls, Chapter 3

 

Diseases

  • Powdery mildew
  • Guignardia on buckeye
  • Guignardia on Boston ivy
  • Witch-hazel leaf spot
  • Tubakia leaf spot

 

Weeds

  • Helleborine
  • Wild parsnip