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Arborgate Consulting, Inc.
Tustin, California
1131 Lucinda Way, 92780


Contact:  Gregory W. Applegate
http://www.arborgate-consulting.com/
714-731-6240 Or Toll Free
greg@arborgate.occoxmail.com
1131 Lucinda Way
Tustin, California 92780

Contact:  Gregory W. Applegate
http://www.arborgate-consulting.com/
714-731-6240
greg@arborgate.occoxmail.com
Mr. Applegate is an independent registered consulting arborist, certified arborist, ISA tree risk assessment qualified, 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. His expertise includes forensic consulting and testimony, appraisal, tree preservation, diagnosis of tree and palm health problems, construction impact mitigation, hazard and failure analysis, root damage studies, decay and loss of strength analysis, pruning programs, species selection, and tree health monitoring.
Information:  
Accident Investigations,  Arboriculture,  Arborist,  Failure Analysis,  Horticulture,  Landscaping, 


Mr. Applegate is an independent registered consulting arborist, certified arborist, ISA tree risk assessment qualified, 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. His expertise includes forensic consulting and testimony, appraisal, tree preservation, diagnosis of tree and palm health problems, construction impact mitigation, hazard and failure analysis, root damage studies, decay and loss of strength analysis, pruning programs, species selection, and tree health monitoring.

Mathers Environmental Science Services, LLC
Columbus, Ohio
, 43230


Contact:  Dr. Hannah M. Mathers
www.mathersenvironmental.com
614-371-0886 Or Toll Free
mathers326@gmail.com

Columbus, Ohio 43230

Contact:  Dr. Hannah M. Mathers
www.mathersenvironmental.com
614-371-0886
mathers326@gmail.com
Dr. Hannah Mathers has over 26 years of experience and training in weed control in landscape, nursery crops and Christmas trees, and is accomplished in herbicide chemistry, agricultural statistics, plant nutrition, woody plant physiology and stress physiology. Dr. Mathers is employed as a Contract Researcher and Independent Consultant, Mathers Environmental Science Services, LLC. In addition to her graduate degrees in Horticulture, she holds an undergraduate degree in Pomology/ Plant Science and two diplomas, one in Forestry and another in Agriculture. For the past 20 years, Dr. Mathers’ has distinguished herself in weed control in horticultural crops and environmental sustainability. She has conducted thousands of herbicide efficacy and phytotoxicity trials, invented five new bio-herbicides, assisted in the registration of eight new herbicides in the US for ornamentals and is a notable national and international speaker and writer.
Information:  
Agricultural Pesticides and Herbicides ,  Agriculture,  Cannabis,  Horticulture,  Landscaping, 


Dr. Hannah Mathers has over 26 years of experience and training in weed control in landscape, nursery crops and Christmas trees, and is accomplished in herbicide chemistry, agricultural statistics, plant nutrition, woody plant physiology and stress physiology. Dr. Mathers is employed as a Contract Researcher and Independent Consultant, Mathers Environmental Science Services, LLC. In addition to her graduate degrees in Horticulture, she holds an undergraduate degree in Pomology/ Plant Science and two diplomas, one in Forestry and another in Agriculture. For the past 20 years, Dr. Mathers’ has distinguished herself in weed control in horticultural crops and environmental sustainability. She has conducted thousands of herbicide efficacy and phytotoxicity trials, invented five new bio-herbicides, assisted in the registration of eight new herbicides in the US for ornamentals and is a notable national and international speaker and writer.

Kammeyer & Associates Inc.
Corona, California
2837 Kellogg Ave, 92881


Contact:  Ron K. Kammeyer
www.kammeyer.com
951-371-2444 Or Toll Free
ronkammeyer@aol.com
2837 Kellogg Ave
Corona, California 92881

Contact:  Ron K. Kammeyer
www.kammeyer.com
951-371-2444
ronkammeyer@aol.com
Ken Kammeyer has served as an expert witness testifying within California Superior Courts the cities of Los Angeles, Riverside, Santa Barbara, and Fresno, California Superior Courts in matters pertaining to the practice of landscape architecture, landscape construction, landscape maintenance and irrigation water use. He is an author, speaker and lecturer in the field of ornamental horticulture and landscape architecture.
Information:  
Arboriculture,  Arborist,  Architecture,  Climate Assessment,  Environmental,  Environmental Engineering,  Forestry,  Groundwater Resources and Contamination,  Horticulture,  Landscaping, 


Ken Kammeyer has served as an expert witness testifying within California Superior Courts the cities of Los Angeles, Riverside, Santa Barbara, and Fresno, California Superior Courts in matters pertaining to the practice of landscape architecture, landscape construction, landscape maintenance and irrigation water use. He is an author, speaker and lecturer in the field of ornamental horticulture and landscape architecture.