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Plant Health Care Report Issue 2013-09

The Scouting Report of The Morton Arboretum for June 14, 2013.

Plant Helath Care Report 2013-09

Mockorange (Philadelphus coronarius)Mockorange (Philadelphus coronarius)photo: John Hagstrom

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What indicator plant is in bloom at the Arboretum?
Mockorange (Philadelphus coronarius) is in early bloom

Accumulated Growing Degree Days (Base 50): 579 (as of June 13)
Accumulated Growing Degree Days (Base 30): 1985 (as of June 13)

Insects:

  • Four-lined plant bug


Diseases:

  • Sycamore anthracnose
  • Clematis wilt
  • Rose rosette
  • Dutch elm disease
  • Black spot on elm
  • Septoria leaf spot


Miscellaneous

  • Cracks in bark of maples