Plant Health Care Report Issue 2013-10

June 21, 2013

The Scouting Report of The Morton Arboretum for June 21, 2013.

PDF iconPlant Health Care Report 2013-10

Catalpa (Catalpa speciosa)
Catalpa (Catalpa speciosa)
photo: John Hagstrom

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What indicator plant is in bloom at the Arboretum?
Catalpa (Catalpa speciosa) is in full bloom

Accumulated Growing Degree Days (Base 50): 700.5 (as of June 20)
Accumulated Growing Degree Days (Base 30): 2246.5 (as of June 20)


  • Japanese beetles
  • Spruce spider mites
  • Lecanium scale
  • Bagworm
  • Imported currantworm
  • More galls!


  • Rust on rose
  • Rhizosphaera needle cast
  • Phyllolsticta leaf spot