Jim Chatfield

Associate Professor and Extension Specialist
Ohio State University Extension

Focus on plant diseases, plant problem diagnostics, tree selection, benefits of trees.

Department of Horticulture and Crop Sciences
Department of Plant Pathology
1680 Madison Avenue, OARDC
Wooster, OH 44691
(330) 466-0270
(330) 263-3667

Articles Authored

Title Category Published on
Plants From All Over Program
Hemlock Woolly Adegid – A 2019 update
Sustainable Landscape Workshop: September 3
Ohio Plant Diagnostic Workshop, September 6
Humboldt Sestercentennial
Diagnostics: It's the Environment, Man
Perspectives on Sudden Oak Death (SOD)
Aesculus Disease Genetics: Buckeye (D)NAtion
Fruit Cracking of Cherry
A Walk in the Arden...
The Natural...and Unnatural History of Trees
Herbaceous Plant School at Secrest: June 27
Seasons Don't Fear The Reaper: Sycamore Resurgence
Woody Phomopsis Galls
How Plants Mate: Upcoming Program
Secrest Spring Sojourn
Cold Case Cracked: Crime on Crabapple Exposed?
ArborEatYumm: OSU's College of Food...
Diagnostics of Beech Leaf Disease: The Ultimate Beech Read
The Saga of Prickly-Ash...And Giant Swallowtail Butterflies...And
The Impatient Gardener
Beech Blight Aphids Shake Their Booty
Broom of the Week; 'Cody's Feathers' Baldcypress
Diagnostics: Coloring Outside The Lines
Teach Your Children Well...About Trees
'Ruby Spice' Clethra: Shrub of the Week
Bagworms: The Mamas and the Papas
Kentucky Coffeetree: Tree of the Week
The Twisted Story of Rose Rosette Disease
Tale of Two Crabapples: Diagnostics Is Never Easy


Title Category Event date
Secrest School- Why Plant Families Matter!
Name That Tree
Diagnostic Clinic for Master Gardeners
Clifton Gorge Nature Walk
Wild about Wildflowers