Horticulture Consultants: 3

Arborgate Consulting, Inc. is an Arboriculture and Horticulture Consultancy working with insurance companies, major developers, theme parks, homeowners, homeowners' associations, landscape architects, landscape contractors, property managers, attorneys and governmental bodies.

Gregory Applegate, ASCA, ASLA, is an independent consulting Arborist, and CEO of Arborgate Consulting, Inc. He has been in the horticulture industry since 1963, providing professional arboricultural consulting since 1984 within both private and public sectors. 

Client List - Disneyland, Disneyland Hotel, DisneySeas-Tokyo, Disney’s Wild Animal Kingdom, the New Tomorrowland, Disney’s California Adventure, Disney Hong Kong project, Universal Studios, Knott’s Berry Farm, J. Paul Getty Museum, Dreamworks, Newport Coast, Crystal Court, Newport Fashion Island Palms, Bixby Ranch Country Club, Playa Vista, MTA Purple and Expo Lines, MWD-California Lakes, Loyola-Marymount campus, Cal Tech, Cal State Long Beach, Pierce College, UCI, USC, UCLA, and the State of California review of the Landscape Architecture License exam.

Business Consultant Services:

View Gregory Applegate's Expert Witness Profile.

John A. Harris, is Principal of Landscape Economics, LLC, President of Earth Advisors, Inc., and a LANDSCAPE ECONOMIST who has worked in the Arboriculture, Forestry, landscape, and horticultural fields for over 40 years. Mr. Harris has provided reputable consulting, education, and project management services for projects across the United States and internationally, in both temperate and tropical ecosystems.

Areas of Expertise include:

• Landscape and Tree Risk Assessments
  • Landscape, Tree, Urban Forest, Nursery Plant Value Appraisals
  • Landscape, Tree, Urban Forest, Nursery Plant Damage Appraisals
  • Damage Assessments, Claims, and Recovery Consulting
• Arboriculture Industry Standards and Standard Practices
• Landscape, Arboriculture, Forestry, Environmental Project Management
• Utility Line Clearance Industry Standards and Standard Practices, Electrocution
• Landscape Industry Standards and Standard Practices- Design, installation, maintenance
• Personal Injury and Wrongful Death involving tree or landscape issues
• Municipal Tree Inventory and Management Plans
• Duty of Care and Negligence in Tree and Landscape Maintenance
• Forestry and Forest Resources Management
• Grounds Maintenance Practices
• Arboriculture and Arborist Practices

John Bornsworth is the owner and Principal of Peninsula Environmental. With over 20 years of experience in urban and community forestry management, John is a Board-Certified Master Arborist and a Registered Consulting Arborist. He holds additional qualifications in Municipal Arboriculture, Tree and Plant Appraisal, and Tree Risk Assessment. John is also a TCIA Certified Treecare Safety Professional. John’s expertise spans urban and community forestry planning and policy, tree forensics, pathology, risk management, and he frequently provides expert witness testimony. John also serves as a chairperson of the Washington State’s Urban & Community Forestry Council, where he represents commercial arboriculture.