fbpx Plant Health Care Report issue 2016-5 | The Morton Arboretum

Plant Health Care Report issue 2016-5

June 3, 2016

The scouting report of The Morton Arboretum for June 3, 2016.

PDF iconPlant_Health_Care_Report_2016_5.pdf

 

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What indicator plant is in bloom at the Arboretum?
Old-fashioned weigela (Weigela florida) is in bloom.


Accumulated Growing Degree Days (Base 50): 469 (as of June 2)
Accumulated Growing Degree Days (Base 30): 2064.5 (as of June 2)


Insects
· Gypsy moth
· Scale
        o Lecanium scale
        o Pine needle scale
         o Euonymus scale
· Four-lined plant bug
· Elm leafminer
· Rose plume moth caterpillar
· Galls, episode 2


Diseases
· Apple scab
· Witch-hazel leaf spot/blight
· Rust on rose
· Viruses


Miscellaneous
· Cold damage