Science of Arboriculture

In this episode of Science of Arboriculture, John Goodfellow talks about his research on the biomechanics of small branches and how they may fail. He also discusses his work finding and defining good indicators of branch failure, as well as where small branches typically fail.

In this episode of Science of Arboriculture we will present an issue that gets many arborists “ticked off.” Dr. Wes Watson discusses an important issue for arborists working in the field: tick and tick-borne diseases. In this episode you will learn about the different species of ticks and their associated pathogens, as well as methods for preventing disease and localized control of tick populations.

In this episode of Science of Arboriculture, learn how wind and other loads affect tree stability and how urban trees’ branches aid in supporting trees dynamically. Our guest, Dr. Ken James, discusses dynamic systems versus static systems, and how we might apply this knowledge to the study of tree stability for urban trees.

In this episode of Science of Arboriculture Dr. Dirk Dujesiefken delivers a lecture on the CODIT Principle. Dr. Dujesiefken addresses the four phases of the defense reaction according to the CODIT principle, and shares his most recent experiments which have interesting implications for how, he suggests, the CODIT model should be expanded.

On this episode of Science of Arboriculture, Adriana Jacykewycz gives a presentation on "green streets" and stormwater capture in New York City. Adriana is the director of Greenstreets, a project in which she and her team are converting unused roadbeds into planting beds and stormwater-capture systems. Adriana discusses the various studies involved in the Greenstreets project, and the challenges and success they have encountered thus far.

Join us for this week’s episode of Science of Arboriculture in which Dr. Patricia Zungoli discusses fire and Asian needle ants. These two species of ants continue to dominate their surrounding habitats, and Dr. Zungoli delivers a compelling lecture regarding the nature of the problem as well as possible methods of treatment.

On this episode of “Science of Arboriculture,” Dr. Jim Clark discusses Manion’s “morality spiral,” and how this concept relates to a process of decline we see in many urban trees. Dr. Clark gives an in depth outline of the symptoms associated with the decline spiral, and discusses potential management prevention strategies to prevent premature tree death.

In this episode, join us as Dr. Christina Wells presents a series of experiments across the country testing a soil decompaction and amendment process designed to improve soil conditions for root growth and tree performance in urban trees. Listen to this episode to find out whether the results of Dr. Wells’ experiment indicate a value to a combination treatment approach to urban trees in compacted soil.

In this podcast, Mr. Philip Andreen delineates prevention tactics that the public entity litigator, the urban forester, as well as the private arborist can use to proactively defend his/her public entity, company or client in tree-related, personal injury litigation cases.

One means of de-polluting our soils, air, and water is through the use of living organisms, or bioremediation. If the bioremediation process uses plants to contain, degrade, eliminate, or accumulate these pollutants is called phytoremediation. Dr. Bonnie Appleton explains how trees and shrubs in the landscape were evaluated using Filterra®, a stormwater management system.