About Us


Dr. Daniel Marion and his son operate a personalized, family run organization that offers holistic tree care for residential and commercial clients, as well as for national parks and government facilities. Dr. Dan has more than 36 years of experience and expertise in the tree care and tree preservation field. In addition to being active in his private practice, he is a Professor of Tree and Ornamental Plant Health at the State University of New York – Finger Lakes. Dan Marion Jr., a certified arborist and ISA lecturer, has worked in the practice since his college days. He has over 25 years of professional experience working with tree disease diagnosis, health management, and treatment.

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As a leading expert in tree preservation and health care, Dr. Marion is an internationally renowned tree specialist and has authored over one hundred scientific and popular articles. He is also a Professor of Tree and Ornamental Plant Health at the State University of New York – Finger Lakes, where he has placed more than 800 students into the field. Dr. Dan received his undergraduate education from the University of Georgia, a masters degree from Ohio State University, and a doctorate in Plant Health and Pathology from the University of Rhode Island.


Professional Awards/Affiliations:

  • Editor - ISA Aboriculture and Urban Forestry Journal
  • Professor and Distinguished Lecturer - SUNY Finger Lakes
  • American Phytopathological Society
  • Registered Practitioner in the Care of Trees #256 ASCA
  • Recipient: Cornell-NYS Excellence in IPM Award


Dan Marion, Jr. is an ANSI accredited Certified Arborist. Dan has 25 years of experience as a plant health care professional. He received his Bachelors of Science degree from the Rochester Institute of Technology, and has Masters course work from the SUNY College of Environmental Science and Forestry. Dan has also been active in authoring and co-authoring local and international presentations and workshops for tree care professionals and homeowners.



Our Associates

Joe

Joseph Featherly, B.S. - Plant Care Specialist

A former student of Dr. Marion, Joe went on to obtain his Bachelor of Science degree in Plant Pathology from Cornell University. Growing up on a farm, Joe brings a unique perspective to our team. He has over 10 years experience in plant science/arboriculture, and along with his extensive experience in agriculture, Joe has a solid foundation as a plant health care professional.



We Help Homeowners Improve Property Value

We are tree professionals like no one else in the region. Our desire is to help you manage and care for your trees and landscape plants. We assist you in the overall development of your property. By applying the latest scientific research to your landscape's individual needs, Dr. Marion, Tree Specialist/Pathologist, and his certified associates care for your trees and landscape to maximize the health of your outdoor living environment while saving you costs in the long run. We provide the very best possible plant care from roots to shoots.

Like you, we are saddened to see irreplaceable trees cut down and we understand the importance of your trees. Properly cared for trees add considerable monetary value to your home, and likewise, uncared for trees detract from it. We work to save you the expense of costly tree removal and tree replacement. Our goal is to aid in maintaining the value of your property by ensuring the appropriate care of your trees.


What We Do:

  • Directly Treat and Care For the Health of Trees and Shrubs
  • Diagnose Diseases and Other Plant Health Problems
  • Prescribe and Follow Through with Individualized Treatment
  • Provide Year-round Regimented Greenery Management
  • Assess for Construction Damage and/or Tree Risk
  • Evaluate and Report on Tree Values

We Save & Protect Trees!



Before and After Photos

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A: Dogwood Before Our Care

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A: Dogwood After Our Care

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B: Before Our Care

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B: Before Our Care

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B: After Our Care

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B: After Our Care

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C: Before Our Care

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C: After Our Care

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Treated vs. Untreated





We Help Organizations Present a Beautiful Setting

Over the years, we have helped many large and small organizations, landscapers, and grounds managers solve tree related problems. We aid in developing site plans for the proper choice and placement of trees. Kodak, Rochester Technology Park, The Baseball Hall of Fame, US Department of the Army, Federal Veteran’s Administration, and Woodlawn Cemetery are among the organizations that we have assisted. Our expertise and diagnostics lab enable us to identify and determine the best course of action for tree health care.

We understand that the outdoor environment is important to every organization in terms of its public image. Sick, weak, and improperly placed trees surrounding a corporate campus may tell others that your company is not environmentally friendly. Let us help you promote your image and standing as a leader in this sustainable “going green” culture - we can often do so without the use of pesticides.

Tree risk assessment is an important service we provide. Maintaining a beautiful environment is desired, but safety is always first and foremost. We will help your organization accomplish both goals simultaneously. By achieving appropriate tree health, and eliminating potential risk, your company can ensure a safe work environment while also expressing the deep commitment of being ecologically friendly.



We Help Schools Maintain a Safe Campus

Assessment for tree risk becomes especially important when human activity is elevated in and around tree populations. Weakened, unsafe trees pose a risk of injury to passers-by. School campuses are places where human traffic comes in close proximity to or even directly underneath large, weight bearing tree branches. Environmental forces, decay, disease, and other factors all play a role in the weakening of a tree. It is virtually impossible to determine the health of a tree based on visual clues alone. Risk assessment is the primary goal when we work with educational institutions. Our secondary goal is achieving a beautiful, healthy looking outdoor setting that becomes the signature and hallmark of the institution itself.

We often work closely with landscapers and maintenance crews to ensure that the campus is safe and in the best possible condition for appropriate tree and plant health. We also oversee and provide when necessary any pruning that is required in removing branches or trees that have the potential for breakage. Our careful management ensures a safe environment for students, faculty, and all who visit the campus.



Protecting Your Trees from the Emerald Ash Borer

Emerald Ash Borer photo

What is the Emerald Ash Borer? The emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), commonly referred to as “EAB”, is an invasive wood-boring beetle. More about EAB from the New York State Department of Environmental Conservation

There are many treatment options to protect ash trees from the Emerald Ash Borer. We can determine whether the tree is a good candidate for treatment and the best course of care based on individual tree health, EAB population density, tree location, and effectiveness and cost of treatment. We are now recommending that all ash trees, regardless of its proximityto a DEC confirmed EAB infestation, be preventatively treated throughout the state of New York. In our observations, we have determined EAB infestations are more widespread than the DEC maps show. The heaviest infestations have coalesced along the NYS Thruway from Erie, PA, all the way to Syracuse, NY. Your ash trees should be examined for these killing diseases even if they are beyond the current EAB treatment zones.

Western NY Infestations of the Emerald Ash Borer





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