Workshops and Events

Mark Webber provides workshops and events on a wide range of horticultural and arboricultural topics.

Upcomming Events

Threats to Trees and How to Increase Their Survival -Wednesday, July 17, 2024, and Thursday, July 18, 2024 Half Moon Education

Previous Events

 Masters Series “Plant Appraisal-Data Collection and Forensic Testing and Analysis” Texas Chapter ISA. January/February 2024

Value of Arborist Certification. American Public Works Association. Ohio Chapter 2023

Ohio Sample Tree Planting Specifications. American Public Works Association. Ohio Chapter 2023

What is Tree Risk Assessment? American Public Works Association. Ohio Chapter 2023

What Tree Defects Should You Be on The Lookout For? American Public Works Association. Ohio Chapter 2023

Tree Risk. Kettering Ohio Rotary Club. November 2022

Tree Walk. Liberty Township Parks. Ohio August 2021

Investigating Agricultural of Over-spray Cases. Agricultural Claims Conference. April.2021

"Tree roots the real story" Webinar-June 2020

Winter Tree Identification, Ohio Chapter ISA, Dayton, Ohio, January 2020

Real Story about Tree Roots, Ohio Chapter ISA, Springfield, Ohio, December 2019

Tailgating with Trees: Tree Identification, Tree Decay Affecting Trees in the Midwest, Ohio Chapter of the International Society of Arboriculture, Dayton, Ohio, June 2019

Tree Roots - The Real Story, Montgomery County Master Gardener Training & Ohio Chapter of the International Society of Arboriculture, Dayton, Ohio, August 2018

Common Fungi Affecting Midwest Trees and Implications for Tree Risk Assessment, Ohio Chapter of the International Society of Arboriculture, Dayton, Ohio, June 2018

Trees and Construction, Ohio Chapter of the International Society of Arboriculture, Dayton,

Ohio, May 2018

Tailgating with Trees #4, “Ostrya, Picea, Platanus, Populas, Prunus, Pseudotsuga, Pyrus, Robina, Sassafras, Taxodium, Taxus, Thuja, Tsuga, Ulmus, Zelkova Identification,” Ohio Chapter of the International Society of Arboriculture, Dayton, Ohio, April 2018

Tailgating with Trees "Winter Plant Identification #3 (Eucommia, Fagus, Fraxinus, Gledistia, Ginkgo, Gymnocladus, Hammamelis, Juglans, Juniperus, Larix, Liquidambar, Lirodendron, Magnolia, Metasequoia, Nyssa),” Ohio Chapter of the International Society of Arboriculture, Dayton, Ohio, April 2018

Tailgating with Trees "Winter Plant Identification #2 (Buxus, Catalpa, Celtis, Carpinus, Carya, Cercis, Chionanthus, Cladrastis, Crataegus),” Ohio Chapter of the International Society of Arboriculture, Dayton, Ohio, January 2018

Tailgating with Trees "Winter Plant Identification #1 (Acer, Abies, Aesculus, Amelanchier, Betula")," Ohio Chapter of the International Society of Arboriculture, Dayton, Ohio, December 2017

Tailgating with Trees "Tree Hazard Defect Identification," Ohio Chapter of the International Society of Arboriculture, Dayton, Ohio, November 2017

Tailgating with Trees "Proper Tree Planting," Ohio Chapter of the International Society of Arboriculture, Dayton, Ohio, October 2017

Identifying Hazardous Tree Defects, Southwest Ohio Urban Forestry Conference, September 2017

• 2017 Continuing Education Program for Montgomery County Master Gardeners on Basics of Tree Hazard Identification. Woodland Cemetery and Arboretum, Dayton, Ohio, August 2017

Tree Care Basics: “Selection, Planting, Training, Hazard Recognition, and more, Cox Arboretum Five Rivers Metro Parks, March 2017

"Hazard Tree Training for Insurance Professional," Independent Insurance Agents and Adjusters of Dayton, Ohio, November 2016

Arboricultural Practices of Importance -Planting, Pruning and More, The Ohio State University Green Industry Short Course at the Ohio Turf Grass Foundation Meetings, Columbus, Ohio, December 2016

Horticulture Basics, Part 1. American Planning Association Ohio Chapter, Dayton Ohio Sinclair Community College, December 2015

Landscape Design and Care. American Planning Association Ohio Chapter, Dayton Ohio Sinclair Community College, December 2015

“The Future of Trees is in Your Hands – The Best Practices of Tree Planting,” Ohio Chapter ISA. Created and developed an 8-hour program for continuing education for the Best Practices of Tree planting for Green's Professionals, October 2014-February 2015

“The Loss Generation of Trees,” Slide show and background of tree planting failures, Cox Arboretum and Gardens, Dayton, Ohio, Ohio Chapter ISA, February 2015

“Site Selection & Soil Conditions for Tree Planting,” Cox Arboretum and Gardens, Dayton, Ohio, Ohio Chapter ISA, February 2015

“Planting Specifications for Tree Planting, meeting ANSI A300 part 6,” Dayton, Ohio, Ohio Chapter ISA, February 2015

“In class exercise practicum of tree planting failures workshop,” Dayton, Ohio, Ohio Chapter ISA, February 2015

Host of Garden Talk on Newstalk Radio WHIO, Dayton, Ohio, Developed website, GardenTalkBlog.com, 1990-present

“Indicators of Tree Risk,” Television Story on WHIO Channel 7, Dayton, Ohio, 2014

Gardening TV Expert, WDTN Channel 2, 1989-1999

“Tree Value Determination” presentation at ISA Ohio Chapter, Dayton, Ohio, 2013 Winter Meetings

Ohio Chapter International Society of Arboriculture, Stem Girdling Roots, 2012

Dayton Home and Garden Show, Vertical Landscape Solutions, 2012

Ohio Chapter International Society of Arboriculture, Native Trees, Winter Meeting, 2011

Dayton Home and Garden Show, Landscape Design with Plant Health in Mind, 2010

Ohio State University Extension Agents, Air Knife-Stem Girdling Roots, 2009

Southwest Ohio BYGL, Woodland Cemetery, Air Knife-Stem Girdling Roots, 2008