The scouting report of The Morton Arboretum for August 3, 2018.
What indicator plant is in bloom at the Arboretum?
Rose of Sharon (Hibiscus syricacus) is in full flower
Accumulated Growing Degree Days (Base 50): 1939.5 (as of Aug 2)
Accumulated Growing Degree Days (Base 30): 4473.5 (as of Aug 2)
- Two-spotted spider mites
- Milkweed bugs and beetles
- Gypsy moth update
- Fall webworm
- Aster yellows (or not?)
- Bur oak blight
Bartlett Tree Experts, Presenting Sponsor of the Plant Clinic