The scouting report of The Morton Arboretum for May 9, 2014.
What indicator plant is in bloom at the Arboretum?
Apple serviceberry (Amelamchier x grandiflora) is in full bloom
Accumulated Growing Degree Days at The Morton Arboretum
Accumulated Growing Degree Days (Base 50): 76 (as of May 8)
Accumulated Growing Degree Days (Base 30): 788 (as of May 8)
- European pine sawfly
- European elm flea weevil
- Elm leaf miner
- Oystershell scale
- Juniper scale
- Juniper webworm
- Brown hemlock needleminer
- Boxwood psyllids
- Volutella blight on pachysandra