Talking Trees

In this Friday episode of Talking Trees, we turn our attention to the Czech Republic’s Arboristická akademie, a leading platform for education, certification, and outreach in the field of arboriculture.

We discuss:

• The Academy’s role in promoting care for trees in non-forest environments, combining science, practice, and communication
• Its wide range of activities, including seminars, workshops, national and international certifica...

In this Thursday episode of Talking Trees, we spotlight a practical digital tool developed by Tim Moya Associates (TMA)—a free mobile app designed to help arborists and tree managers identify wood-decay fungi on trees in the UK.

We discuss:

• How the app simplifies fungi identification through intuitive menus, photos, and information on decay type, host species, and ecological role
• Its value for field-based arborists, consultants, a...

In this Wednesday episode of Talking Trees, we explore how thoughtful tree species selection is essential for building resilient green infrastructure in cities facing climate change, soil limitations, and urban stressors.

We discuss:

• Why tree selection should be based on site-specific conditions, including soil compaction, heat exposure, and rooting space
• Tools and frameworks for choosing species, including guides that rate trees ...

In this Tuesday episode of Talking Trees, we dive into the world of friction hitches, essential tools for climbers that provide control, safety, and flexibility during ascent and descent in tree work.

We discuss:

• How friction hitches function by gripping the rope under tension while allowing easy adjustment when unloaded
• Popular hitches like the Prusik, Blake's Hitch, Valdotain Tresse (VT), JRB, and Longhorn, and how each per...

In this Monday episode of Talking Trees, we explore how urban trees respond to rising temperatures and what determines their heat resistance in the face of climate change and the urban heat island effect.

We discuss:

• The physiological and biochemical effects of heat on trees, including impacts on photosynthesis, respiration, and water regulation
• Methods to assess heat tolerance, from leaf-level tests to remote sensing technologies
• ...

This is your weekly summary of the Talking Trees podcast!

🌱 Monday 156 - Transpiration, Evaporation and Interception
We explored three key water-related processes in trees—transpiration, evaporation, and interception—and how they influence tree health, microclimate regulation, and the hydrological cycle.

🧗 Tuesday 157 - Personal Fall Protection Systems
We discussed climbing safety systems, focusing on moving and stationar...

In this Saturday episode of Talking Trees, we take a closer look at the Cerambyx cerdo, also known as the great capricorn beetle—a striking and ecologically significant member of the longhorn beetle family.

We discuss:

• Its scientific classification and broad geographic range across Europe, Asia, and North Africa, with historic extinction noted in the UK
• The beetle’s distinctive appearance, including body size, dark coloration, and...

In this Friday episode of Talking Trees, we pay tribute to one of the most influential figures in modern arboriculture—Prof. Dr. Dirk Dujesiefken. His career has shaped the way we understand, teach, and care for trees in urban environments across Europe.

We discuss:

• His early fascination with nature protection and the urban role of trees, which led him from studying wood to researching living trees and tree care systems
• The foundi...

In this Thursday episode of Talking Trees, we delve into the use of acoustic tomography—specifically the PiCUS Sonic Tomograph and TreeTronic systems—for diagnosing hidden internal decay in trees.

We discuss:

• How sound waves and electrical resistance are used to map internal wood structure without damaging the tree
• The key steps in setting up, calibrating, and interpreting tomograms, including common challenges like the “cogwheel ...

In this Wednesday episode of Talking Trees, we explore the principles and practices of dynamic tree cabling, a system designed to enhance tree stability while allowing natural movement and growth.

We discuss:

• The difference between dynamic and static cabling systems, and when dynamic solutions are most appropriate
• Key installation principles such as placement height, tension calibration, and selection of appropriate materials
• How d...

In this Tuesday episode of Talking Trees, we dive into the essentials of Personal Fall Protection Systems (PFPS) used in modern arboricultural climbing and aerial rescue operations.

We discuss:

• The two primary climbing techniques: Moving Rope Technique (MRT), where the rope moves over an anchor point, and Stationary Rope Technique (SRT), with a fixed rope setup
• The structure of a fall protection system, which includes a main line ...

In this Monday episode of Talking Trees, we explore three essential water-related processes—transpiration, evaporation, and interception—that shape how trees interact with their environment and regulate the water cycle.

We discuss:

• Transpiration, the movement of water from roots through the plant and its release as vapor from leaf surfaces, driven by sunlight, humidity, and stomatal activity
• Evaporation, the transformation of wate...

This is your weekly summary of the Talking Trees podcast – diving deep into tree biology, gear, policy, soil, and society. Here’s what we explored this week:

🌱 Monday 149 - Osmosis and Root Function
We kicked off the week by examining how osmosis and root structure support water uptake and nutrient transport. From soil macropores to seaweed-based biostimulants, this episode provided practical insights for improving tree establi...

In this Saturday episode of Talking Trees, we turn our attention to the human dimension of biodiversity protection, exploring how public attitudes shape conservation outcomes and the role arboriculture plays in supporting a healthy social-ecological system.

We discuss:

• A national study from Spain revealing that the general population holds a strong pro-conservation stance toward protecting threatened flora
• Survey insights into pub...

In this Friday episode of Talking Trees, we explore the soil microbiome as a critical but often overlooked driver of tree health, biodiversity, and ecosystem resilience. Far beyond just a substrate for roots, soil is a living, dynamic system influencing the entire tree environment.

We discuss:

• How soil microbial communities support nutrient cycling, disease resistance, and plant growth through complex interactions
• The concept of s...

In this Thursday episode of Talking Trees, we focus on the global threat posed by Phytophthora species, aggressive plant pathogens that have devastated forests, gardens, and natural landscapes worldwide.

We discuss:

• The biology and life cycle of Phytophthora fungi-like organisms, including their ability to spread through water, soil, and infected plant material
• The impact of Phytophthora ramorum and Phytophthora kernoviae in the U...

In this Wednesday episode of Talking Trees, we explore the newly updated guidance from the National Tree Safety Group (NTSG) on applying common sense risk management to trees. Balancing public safety with the immense environmental and social benefits of trees is at the heart of this approach.

We discuss:

• Why the overall risk from trees is very low, but still requires responsible, proportionate management
• Key legal frameworks invol...

Tree climbing spikes, also known as spurs, are essential tools for specific arboricultural operations but come with important considerations. In this Tuesday episode of Talking Trees, we explore the different types of climbing spurs, focusing on materials like steel and aluminum, and gaff lengths suited for tree, pole, or hybrid work.

We discuss:

• How steel spurs offer durability ideal for beginners, while lighter options suit exp...

In this Monday episode of Talking Trees, we explore the vital processes of osmosis and root function that underpin healthy tree growth and establishment. Understanding how roots interact with their environment is crucial for arborists and anyone managing young or mature trees.

We discuss:

• How osmotic processes drive water uptake and nutrient transport in tree roots
• Research findings on the role of seaweed extract biostimulants in ...