Speakers Bureau

Welcome to the Ohio Chapter International Society of Arboriculture’s Speakers Bureau. Whether you’re looking for a presenter for your Garden Club, Kiwanis, Scouts, School or employer, we are here to help.

Read each speaker’s information below and contact them directly to answer any questions and to check their schedule. There is no cost from the Chapter for this service; speakers, however, may request travel reimbursement, etc. Speakers are listed in alphabetic order.

Chad Clink – Cleveland, OH

Email: chadclink@gmail.com / Phone: (330) 760-1476

Chad Clink – Cleveland, OH

Chad has a passion for trees and providing high quality care towards their preservation. As a child and adolescent, working outside in the garden and long walks in the woods led to an interest in outdoor careers. As a student at Kent State University studying horticulture, Chad took arboriculture and urban forestry classes refining his career pathway to the tree care industry. Upon graduating from Kent State with an Associate and Bachelors’ degree in Horticulture, Chad worked across the country as an arborist and urban forester providing expertise to various communities. During this time, Chad was able to achieve the Board Certified Master Arborist (OH-6204BM) credential and complete his master’s degree from the University of Idaho in Natural Resource Management. His most recent accomplishment was becoming a Registered Consulting Arborist (#589) with the American Society of Consulting Arborists. Chad is also a Municipal Specialist and Tree Risk Assessment Qualified with the International Society of Arboriculture and a Licensed Commercial Applicator with the Ohio Department of Agriculture. He has enjoyed working as both an arborist and urban & community forester for 7 years in the industry, while giving back through education and outreach with the Ohio Chapter International Society of Arboriculture. You will find Chad hiking with his wife, son, and dogs in his free time – adding a new tree to the yard – or up a tree for a recreational climb. 

Anna DeToro – Kent, OH

Email: anna.deboro@davey.com / Phone: (330) 979-8891

Anna DeToro – Kent, OH

Anna earned her undergraduate degree at Kent State University in horticulture technology majoring in urban forestry. She will earn her Masters’ of Plant Health Management with specializations in plant pathology and entomology in May 2018, continuing to earn her PhD in agriculture and education extension beginning the Summer of 2018 from The Ohio State University. Anna is an ISA certified arborist, tree risk assessment qualified (TRAQ) and is a commercial pesticide applicator for Ohio. 

Anna has a passion for arboricultural education, often volunteering to speak about arboricultural related topics at local garden clubs, girl scouts and boy scout events. This love for arboricultural education sparked interest in her current graduate thesis involving employing innovative education techniques for delivering arboricultural information to end users; and analyzing the efficiency of these techniques using arboricultural professionals as test subjects, in hopes to promote the arboricultural industry through accessible and more palatable forms of arboricultural education delivery techniques. 

She is employed at The Davey Tree Expert Company as an arboricultural researcher and coordinator of the bio-ecological laboratory. Her past roles include, plant and soil laboratory technician, greenhouse technician and research assistant. As alternative methods of plant health management become increasingly more desirable, Anna’s area of specialization is rapidly becoming central to horticulture practice. Her research performed at The Davey Expert Company and The Ohio State University deals with popular plant health management techniques which make her an experienced resource for questions about management of plants containing biotic and abiotic concerns. 

John Palmer – Lakewood, OH

Email: jarbor13@gmail.com / Phone: (440) 227-8158

John Palmer – Lakewood, OH

John Palmer is a Consulting Arborist, ISA Certified Arborist, and is an advanced Tree Risk Assessor. His areas of expertise include pruning and trimming, young tree training, pest ID and management, with a specialty in Emerald Ash Borer. He is an Arborjet trained Injection specialist, with training in Arborceuticals. His focus includes proper pruning and planting practices, Biomechanics, soil and water management, urban forestry, tree biology, and healthy root system development.

He is an author, speaker, and trainer, on subjects including The Future of Urban Forestry, Deforestation by Design™, The New Construction Paradigm, and The Leadership Laws of Nature. He has spoken to the construction industry, advanced high school science classes, municipal forestry departments, garden clubs, home and garden shows, and at national arborist conventions. He’s been featured in news and magazine articles, and in radio and TV segments, and has had a regular social media presence with tips and advice for nearly 10 years.

Previously John had a very successful 20-year career in radio. He can comfortably speak to any size group, making sure he is both understood and entertaining. He proudly embraces the title of Tree Nerd and is very determined to help people understand the difference between a tree doctor and a tree undertaker!

Ronald Rothhaas – Cincinnati, OH

Email: ron@arbordoctor.com / Phone: (513) 661-2673

Ronald Rothhaas – Cincinnati, OH

Ronald Rothhaas is an ISA Board Certified Master Arborist® and owner of Arbor Doctor LLC, specializing in plant health care, tree preservation, and landscaping. He got his start in horticulture by joining his community tree board while in high school. Ron is a graduate in Ornamental Horticulture from Cincinnati State Technical and Community College and Horticulture Interpretation from The Ohio State University. Ron is a member of the International Society of Arboriculture and is a member of the Ohio, Indiana, and Kentucky ISA chapters. He is ISA Tree Risk Assessment Qualified and is a member of the American Society of Consulting Arborists and the Ohio Nursery and Landscape Association. Ron is a frequent guest on In the Garden with Ron Wilson on 55WKRC where he talks about trees, horticulture, and his other favorite topic, meteorology. Ron has been married for 26 years and has an adopted daughter who is a gymnast. He lives in Green Township on the west side of Cincinnati but has clients throughout the Cincinnati metro area. In his spare time Ron is civilian coordinator for Westwood Citizens on Patrol, Cincinnati Police Department District 3. Arbor Doctor has an extensive website, blog site, and Facebook presence. The website is www.ArborDoctor.com.

Elliott Schaffer – Powell, OH

Email: schaffer495@gmail.com / Phone: (614) 668-2026

Elliott Schaffer – Powell, OH

Elliott Schaffer is a Landscape Horticulture graduate of The Ohio State University. He is also an ISA Certified Arborist and licensed pesticide applicator. Elliott gained important experience in consumer tree and shrub care with the ChemScape® division of ChemLawn®. First by running a route in Chicago, then opening and managing a tree and shrub care operation in Cleveland. As zone horticulturist then zone service line manager, Elliott applied his experience to teaching, coaching, and growing the field organization. Elliott held training seminars across the country and at ChemLawn's world headquarters in Ohio.

In the mid-1980's, Elliott began supporting ChemLawn franchisees. This support included developing original training programs for functional areas of the company; not only agronomic and horticultural topics but, safety and environmental stewardship as well. In the 1990's, Elliott started selling for different Green Industry vendors; CLC LABS®, IMC Vigoro® and Plant Health Care®. In late 2000, Elliott became training manager at Scotts LawnService® where he had the responsibility for building training programs and materials for 1,700 field personnel all over the United States.

In June 2007, Elliott established "Environmental Horticultural Services"; an owner- operated horticultural training and consulting business in Dublin, Ohio. In this new venture, Elliott applies his over 30+ years of tree and shrub care service experience to the training and development of growing small businesses in the service industry.

Daniel Smith – Hartville, OH

Email: treecision247@gmail.com / Phone: (330) 554-7612

Daniel Smith – Hartville, OH

Daniel started in trees as a kid spending a lot of time outside playing, climbing trees, wandering in the woods and developing a love of the outdoors.  As he got older he worked with his family outside, clearing brush on the family farm, making maple syrup (for nearly 40 years), and learning to identify various trees on walks with his Dad.   

In college, Daniel studied music and history, thinking he would be a teacher.  But after getting married, starting a family and working full-time to provide for them, he finished his undergraduate degree with a BA in management from Malone University.  First in restaurants, then in manufacturing, Daniel began learning the importance of providing excellent customer service and how it can become a competitive advantage.

After working for a local tree service company learning the ropes and assisting in sales, Daniel began his own tree service business in the summer of 2006.  Smith Family Tree Service primarily catered to residential clients in NE Ohio, specifically in Portage and Summit counties and surrounding communities.  In 2012, after merging with The Lumberjack Complete Tree Service, Inc., Daniel worked as Sales Manager.  During this time, he also began speaking to local business groups and giving maple syrup making educational tours for various groups.

In 2017 Daniel started Treecision Arborcare, a client advocate tree service that helps people understand and manage their tree and shrub care needs.  It also provides consulting arborist services along with speaking, training and educational workshop experiences. 

Daniel is a member of the American Society of Consulting Arborists and the International Society of Arboriculture.  His credentials include ISA Certified Arborist® OH-6673A and Tree Risk Assessment Qualified.  He is also a licensed Auctioneer.  He is working to become an ASCA Registered Consulting Arborist with plans to achieve the ISA Board Certified Master Arborist credentials.

Available as an arborist, consultant, speaker and trainer, Daniel works to tailor presentations and workshops to the needs of each client from hands-on training and sensory experiences to PowerPoint presentations and interactive lectures.  Daniel is an effective communicator and comfortable in front of various sized groups from small to large.  


Email: mwebber@webberlandscaping.com / Phone: (937) 835-3381

Mark Webber, BCMA, CPH, LTE,  MArborA, OCMNT, TPAQ, TRAQ

Ma rk is a professional arborist and horticulturist with well over 40 years of combined experience with the science and care of trees and plants. He earned his A.A.S and B.S from The Ohio State University with a major in horticulture and a minor in agricultural economics. Mark is designated by the International Society of Arboriculture as a Board Certified Master Arborist and is a Tree Risk Assessment Qualified arborist. The New Jersey Board of Tree Experts has designated Mark as Licensed Tree Expert, and he is the only arborist in the United States designated by the Arboricultural Association in the United Kingdom as a category 5 arborist. He is also designated by the American Society of Consulting Arborist is a Qualified Tree & Plant Appraiser. The American Society for Horticultural Science has designated Mark, a Certified Horticultural Professional. Mark has hosted a call-in radio gardening show on WHIO radio for 28 years and hosted a television program on WDTN Channel 2 called “Test Garden” for 10 years. Additionally, he has written over 30 articles that have been published in various professional publications in the United States and Australia.

Mark can speak to your organization about a wide range of arboricultural and horticultural topics and provide a point of the presentation.  

Those presentations include topics like:

  • Tree Decay
  • Tree Risk Management
  • Tree Roots
  • Tree Planting
  • Soil & Nutrient Management
  • Storm Damage Trees
  • Other topics upon request