The scouting report of The Morton Arboretum for June 12, 2020.
What indicator plant is in bloom in Dupage County?
Arrowwood viburnum (Viburnum dentatum) is in flower
Accumulated Growing Degree Days (Base 50): 652.5 (as of June 11)
Accumulated Growing Degree Days (Base 30): 2322.5 (as of June 11)
- Periodical cicadas
- Viburnum leaf beetle update
- Euonymus scale
- Four-lined plantbug
- Apple scab
- Powdery mildew on ninebark
- Peach leaf curl
- Brown rot of stone fruit
- Guignardia on ivy
- Brown ginkgo update