Forensic Services

Urban Arborists has particular expertise in assessing the causes of tree and branch failures in urban and suburban settings. Because we deal with such problems on a daily basis in our field work, we have a deep database of experience regarding the consequences of all the different shocks to which urban trees are exposed. We also have long experience with the relative tolerance of different species to similar problems. We also have excellent resources - both in the scientific and municipal communities - to get reliable guidance in specific situations.



Surveys are a favorite task at Urban Arborists, because they let us get to know entire landscapes through the lens of their trees and shrubs. We locate and accurately identify and measure plants. We assess their health, condition and prognosis. We also suggest remedial or mitigation treatments, when needed. We like to make these surveys the framework for longterm care.



Assigning a value to trees requires wide knowledge, practical experience, and the careful weighing of alternatives. Although there are objective criteria for assessment, their application requires many subjective judgments. All valuation at Urban Arborists is done by Bill Logan. The work is done for individual trees as well as for whole landscapes. Recently, for example, Logan performed the valuations for the hundreds of trees that had to be removed to make way for the new Yankee Stadium.


Hazard Assessment

To determine whether or not a tree is a hazard is a serious job. It is not just a matter of filling out a standard form and adding up the numbers. Because we look at every tree from the widest point of view, we have long and deep experience in evaluating the condition, stability and longevity of trees. Because we like trees, we tend to be conservative - maintaining them wherever possible - but if we determine that a tree is hazard, we do not hesitate to recommend its removal.



Maintaining the woody plants in gardens and landscapes means managing the soils, the water, and the potential antagonists. Urban Arborists makes plans that assess all three and create detailed recommendations that promote the longterm health of the plants. These are not blanket recommendations, but are based on a complete evaluation of the growing environment.