COLLEGE OF FOOD, AGRICULTURAL,
AND ENVIRONMENTAL SCIENCES

The Ohio State Phenology Calendar

Happening in Wooster
1000
Emerald ash borer
Emerald ash borer
50% adult emergence
1010
Rosebay Rhododendron
Rosebay Rhododendron
first bloom
1047
Greenspire Littleleaf Linden
Greenspire Littleleaf Linden
full bloom
The GDD for
6/17/2026 3:41:13 AM
is: 1,068
1073
Southern Catalpa
Southern Catalpa
full bloom
1115
June Bride Littleleaf Linden
June Bride Littleleaf Linden
full bloom
1158
Bottlebrush Buckeye
Bottlebrush Buckeye
first bloom

Using this

 calendar

767
European Fruit Lecanium Scale
Egg Hatch

   Event's GDD

   Name of what's being affected by event. May be a plant, insect, or chemical. Plants appear in darker gray, insects in medium gray, and chemicals in lighter gray.

   Picture of what's being affected by event if applicable; not all affected will have pictures

   Name of phenological event

    


Denise Ellsworth
1680 Madison Ave. | Wooster, OH 44691
Phone: 330-263-3723 | ellsworth.2@osu.edu


Ashley Kulhanek
4046 Medina Road | Medina, OH 44256
Phone: 330-661-6404 | kulhanek.5@osu.edu


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