The Scouting Report of The Morton Arboretum for June 14, 2013.
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)
- Four-lined plant bug
- Sycamore anthracnose
- Clematis wilt
- Rose rosette
- Dutch elm disease
- Black spot on elm
- Septoria leaf spot
- Cracks in bark of maples