The Scouting Report of The Morton Arboretum for Aug 9, 2013.
photo: John Hagstrom
What indicator plant is in bloom at the Arboretum?
Panicled hydrangea (Hydrangea paniculata) is in bloom
Accumulated Growing Degree Days (Base 50): 1781.5 (as of Aug 8)
Accumulated Growing Degree Days (Base 30): 4307.5 (as of Aug 8)
- Emerald ash borer after 10 years
- Red milkweed beetle
- …and milkweed bug
- Cypress twig gall
- Tortoise beetle
- Banded longhorn beetle
- Melampsora rust
- Fungal problems on kerria
- Sycamore bark falling off
- Urban tree care conference for professionals