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Plant Health Care Report issue 2014-5

The Scouting Report of The Morton Arboretum for May 16, 2014.

Plant_Health_Care_Report_2014_5

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What indicator plant is in bloom at the Arboretum?
Eastern redbud (Cercis canadensis) is in full bloom

Accumulated Growing Degree Days at The Morton Arboretum
Accumulated Growing Degree Days (Base 50): 175.5 (as of May15)
Accumulated Growing Degree Days (Base 30): 1026.5 (as of May15)

Insects
Aphids
Pine bark adelgid
Viburnum crown borer
Viburnum leaf beetle

Diseases
Viruses

Weeds
Creeping bellflower
Maple seedlings in lawns
Poison hemlock

Miscellaneous
Winter damage update