Best Canopy International Podcasts (2025)

1
🔒 Allergenicity and Trees 10:18

6h ago10:18

10:18

Subscriber-only episode In this Saturday episode of Talking Trees, we explore how urban trees and green spaces contribute to pollen allergenicity, a growing health concern—especially as climate change alters pollen production patterns. We discuss: Findings from Florence and Córdoba showing how urban park design, plant species selection, and park si…

1
ASCA - Arbor Day 11:34

15h ago11:34

11:34

In this special Arbor Day episode of Talking Trees, we shine a light on the role of consulting arborists and the importance of the American Society of Consulting Arborists (ASCA) in shaping the arboricultural profession. We discuss: The differences between arborists, certified arborists, and consulting arborists, focusing on training, experience, a…

1
🔒 Fire, Humans and Trees 15:19

1d ago15:19

15:19

Subscriber-only episode In this Thursday episode of Talking Trees, we take a long-view perspective on one of humanity’s most transformative relationships: the discovery and use of fire, and its complex connection with trees and the natural world. We discuss: How early hominins first encountered natural wildfires and slowly began to control and harn…

1
36. Testable VS Nontestable Wines - Wines That May Appear on the WSET Level 3 Tasting Exam 7:50

3d ago7:50

7:50

Resources & Links Sign up for the Wine Educate Newsletter: Newsletter Signup | Wine Educate Launchpad: Level 3 Prep Course: Launchpad: WSET Level 3 Prep - Zoom Course - May 11th | Wine Educate Episode Summary In this episode, Joanne Close addresses a common concern among WSET Level 3 students: the difference between testable and non-testable wines.…

1
🔒 Severe Pruning and Ecoservices 12:13

4d ago12:13

12:13

Subscriber-only episode In this Wednesday episode of Talking Trees, we take a critical look at how severe pruning—especially topping—affects urban trees and their ability to provide ecosystem services. Drawing from the latest scientific research, we explore how pruning practices shape tree physiology, carbon capture, and microclimate regulation. We…

1
35. Top 5 Mistakes Students Make in the WSET Level 3 Theory Exam 11:21

5d ago11:21

11:21

Resources & Links Sign up for the newsletter Launchpad: Level 3 Prep Course: Email Joanne: [email protected] Episode 35 – The Top 5 Mistakes on the WSET Level 3 Theory Exam In this episode, I’ll walk you through the top five mistakes I regularly see students make on the theory portion of the WSET Level 3 exam—and how you can avoid them. Becaus…

1
Ely`s London Plane - Earth Day 9:58

4d ago9:58

9:58

In this special Earth Day episode of Talking Trees, we spotlight one of the UK’s most iconic trees: the Great London Plane of Ely. Celebrated as the largest of its kind in the country, this remarkable specimen stands not only as a botanical giant, but also as a symbol of heritage, science, and community engagement. We discuss: The historic and cult…

1
Easter and Tree Traditions 14:12

5d ago14:12

14:12

In this Monday holiday episode of Talking Trees, we explore the rich symbolic and cultural connections between Easter celebrations and trees. From the ancient Tree of Life to Slavic rituals involving willow branches, this episode weaves together mythology, art, and seasonal tradition. We discuss: The Tree of Life as a universal symbol of regenerati…

1
Episode 90: The 70-Year Battle to Save Great Lakes Fisheries 58:15

5d ago58:15

58:15

The fate of North America's most valuable freshwater system rests in the hands of dedicated scientists working across political boundaries. Greg McClinchey from the Great Lakes Fishery Commission returns to Under the Canopy to reveal the fascinating story of how this binational organization has battled invasive sea lamprey for nearly 70 years while…

1
🔒 RECAP - CW 15/2025 15:41

6d ago15:41

15:41

Subscriber-only episode This is your weekly summary of the Talking Trees podcast – bringing you a full week of arboricultural knowledge, inspiration, and science. 🌱 Monday 128 - Tree Interactions with Other Organisms We began the week exploring how trees coexist with fungi, animals, and microbes. Learn how mycorrhizal networks, competition, and sym…

1
RECAP - CW 16/2025 10:25

6d ago10:25

10:25

This is your weekly summary of the Talking Trees podcast – exploring everything from microbiomes to medicine. Here's what we uncovered this week: 🌱 Monday 135 - Street Trees and Soil Microbiota We opened the week underground, exploring how microbial life in the rhizosphere supports urban street trees. Bacteria, fungi, and endophytes form biochemica…

1
🔒 Trees Pharmacological 11:30

7d ago11:30

11:30

Subscriber-only episode In this Saturday episode of Talking Trees, we explore the pharmacological potential of trees, focusing on two iconic species: Fraxinus (ash tree) and Salix alba (white willow). Both have long histories in traditional medicine and are now gaining attention in modern pharmacological research. We discuss: The presence of powerf…

1
International Society of Arboriculture = ISA 13:07

8d ago13:07

13:07

In this Friday episode of Talking Trees, we celebrate the legacy and ongoing impact of the International Society of Arboriculture (ISA)—the world’s leading organization dedicated to advancing the profession of arboriculture. We explore: The history of ISA, which celebrated its 100th anniversary in 2024 The evolution of its scientific journal from t…

1
🔒 Trees and Cancer 15:47

9d ago15:47

15:47

Subscriber-only episode In this Thursday episode of Talking Trees, we explore the emerging and complex connections between exposure to trees and green spaces and the risk of cancer, particularly breast cancer. While research is still developing, recent studies have started to uncover possible protective effects of urban greenery on human health. We…

1
34. Top 5 Mistakes Students Make in the WSET Level 3 Tasting Exam 8:43

10d ago8:43

8:43

Resources & Links Join the Wine Educate Newsletter for weekly study tips and course updates Learn more about Launchpad: Level 3 Prep Course Check out upcoming trips and classes www.wineeducate.com Episode Summary In this episode, Joanne tackles one of the most stressful parts of the WSET Level 3 exam: the tasting portion. As someone who has graded …

1
🔒 Lightning and Trees 14:49

10d ago14:49

14:49

Subscriber-only episode In this Wednesday episode of Talking Trees, we investigate the powerful and often underestimated role of lightning in the life and death of trees. Lightning not only causes physical damage but may also shape tree evolution and biodiversity over time. We explore: How lightning strikes affect tree aging, decay processes, and h…

1
🔒 Groundie 13:32

11d ago13:32

13:32

Subscriber-only episode In this Tuesday episode of Talking Trees, we focus on the often underappreciated but absolutely essential role of the Groundie—the ground worker in tree care operations. Inspired by Jeff Jepson’s book Groundie, we explore what it takes to thrive in this demanding position. We discuss: The core responsibilities of a ground wo…

1
33. Do Study Pods Really Help? Group Learning in WSET Level 3 7:46

12d ago7:46

7:46

Resources & Links Learn more about the Launchpad: Level 3 Prep Course Join the Wine Educate Newsletter for weekly tips & updates Episode Summary In this episode, Joanne explores one of the most effective tools for success in WSET Level 3: the study group. If you're on the fence about joining or starting a study pod, this episode covers the research…

1
The Human Impact of Closing USAID with Heather Taylor 55:42

10d ago55:42

55:42

There is no doubt that the international development sector has changed drastically and permanently over the last couple of months. Starting with the closure of the vast majority of USAID programming, other donor countries have also withdrawn support from the global poor. Joining the show to guide us through what it looks like for Christians to sta…

1
🔒 Street Trees and Soil Microbiota 14:59

13d ago14:59

14:59

Subscriber-only episode In this Monday episode of Talking Trees, we uncover the hidden world beneath our feet—the soil microbiota that supports and sustains urban street trees. This episode dives into the crucial roles played by bacteria, fungi, and other microorganisms living in the rhizosphere and within tree tissues. We discuss: How microbial co…

1
Episode 89: Exploring How Microorganisms Shape Human Health 1:17:29

13d ago1:17:29

1:17:29

Professor James A. Scott takes us on a mind-expanding journey through the invisible world of microorganisms that profoundly shape our health from birth through adulthood. As an expert from the University of Toronto's Dalla Lana School of Public Health specializing in biological hazards, Scott reveals how the first 100 days of a baby's life represen…

1
Mark Johnston - Lifelong Arborist 19:55

14d ago19:55

19:55

In this Friday episode of Talking Trees, we celebrate the remarkable career of Dr. Mark Johnston, a pioneer in urban forestry whose life’s work has shaped tree care across the UK and beyond. Drawing from his autobiographical reflections in the 2024 TREES e-book, this episode offers a personal and professional journey through decades of dedication t…

1
🔒 Chalara fraxinea 14:33

15d ago14:33

14:33

Subscriber-only episode Episode Summary (English): In this Saturday episode of Talking Trees, we examine the devastating impact of Chalara fraxinea (Hymenoscyphus fraxineus), the fungal pathogen behind ash dieback in Europe. We explore the spread, symptoms, and susceptibility factors affecting Fraxinus excelsior and other ash species, including fin…

1
🔒 Who Should Pay to Protect Trees 13:58

17d ago13:58

13:58

Subscriber-only episode In this Thursday episode of Talking Trees, we examine one of the most contentious questions in urban arboriculture: who should bear the cost of protecting trees? Focusing on legal and planning frameworks in the United States, the episode explores how local tree protection ordinances can spark conflict between environmental g…

1
32. The Long Runway – Why Early Preparation Leads to Level 3 Success 10:05

17d ago10:05

10:05

Resources & Links: Launchpad: Level 3 Prep Course Sign up for the Wine Educate Newsletter How to Contact Us: Email: [email protected] Website: www.wineeducate.com Instagram: @wineeducate Episode Summary: In this episode, Joanne breaks down one of the biggest predictors of success in WSET Level 3: early preparation. While Levels 1 and 2 can be …

1
🔒 Tree Injections 17:08

18d ago17:08

17:08

Subscriber-only episode In this Wednesday episode of Talking Trees, we dig into the science and practice of tree injections, also known as vegetative endotherapy. This method of delivering substances directly into a tree's vascular system is transforming plant care, especially in managing pests and diseases. We explore: The history and development …

1
🔒 Structural Substrates 26:40

19d ago26:40

26:40

Subscriber-only episode In this Tuesday episode of Talking Trees, we ascend into the practical world of structural substrates and their critical role in supporting healthy urban trees, especially in areas with paved surfaces and compacted soils. We focus on Cornell University’s CU-Structural Soil® system, an engineered soil blend combining crushed …

1
31. How Many Hours Do I Really Need to Study for WSET Level 3? 8:13

19d ago8:13

8:13

Resources & Mentions Free WSET Level 1 Flashcards Launchpad: Level 3 Prep Course – Our four-week study support program to help you stay on track Wine Educate Newsletter – Sign up here for tips, tools, and new episode updates Episode Summary If you're preparing for WSET Level 3, you're probably wondering: How many hours do I actually need to study? …

1
🔒 Tree Interactions with Other Organisms 12:53

20d ago12:53

12:53

Subscriber-only episode In this Monday episode of Talking Trees, we dive into the intricate world of how trees interact with a wide range of other organisms—from fungi, lichens, and microbes to insects, birds, and mammals. These relationships are fundamental to ecosystem balance, biodiversity support, and forest resilience. Drawing from recent rese…

1
Episode 88: What Tree Lichens Tell Us About Our Changing Forests and Landscapes 47:58

20d ago47:58

47:58

The forest canopy above us holds secrets most people never notice—miniature ecosystems thriving on tree trunks that tell profound stories about our changing world. In this eye-opening conversation with Dr. Yolanda Wiersma, professor of biology at Memorial University in Newfoundland, we venture into the fascinating realm of landscape ecology and lic…

1
RECAP - CW 14/2025 14:14

21d ago14:14

14:14

This is your weekly summary of the Talking Trees podcast – bringing you expert insights and practical knowledge from Monday to Saturday. Here’s what we covered this week: 🌱 Monday 121 - Function of Assimilation Apparatus We explored the role of the assimilation apparatus – leaves and needles – in photosynthesis and stress adaptation. Learn how tree…

1
🔒 Erwinia amylovora 17:08

22d ago17:08

17:08

Subscriber-only episode In this episode of Talking Trees, we dive into the bacterial disease Erwinia amylovora, commonly known as fire blight. Listeners learn about the origins, biology, and symptoms of this aggressive pathogen that primarily affects apple and pear trees. The discussion covers essential practices for managing outbreaks, including p…

1
David Lonsdale 19:39

23d ago19:39

19:39

In this episode, listeners meet renowned arboricultural expert David Lonsdale. David shares his inspiring journey and extensive experience, discussing his insights on tree pathology, tree risk assessment, and management strategies that promote healthy urban forests. He provides practical knowledge blended with anecdotes from his long career, highli…

1
🔒 Tree Value Calculation 12:28

24d ago12:28

12:28

Subscriber-only episode In this episode, we explore the methodologies and importance of calculating tree values, focusing on how arborists and municipalities assess the financial, ecological, and aesthetic worth of urban trees. We discuss common valuation techniques, including the Replacement Cost Method and the Amenity Valuation approach, highligh…

1
30. Inside the WSET Level 3 Exam: Tasting + Theory Breakdown 12:37

24d ago12:37

12:37

Launchpad: WSET Level 3 Prep - Zoom Course - Next Start Date In this episode of Wine Educate, host Joanne Close takes the mystery out of the WSET Level 3 exam. She explains exactly how the tasting and theory sections are structured, how grading works, and what to focus on to earn the most points—whether you’re aiming to pass or go for that distinct…

1
🔒 Practical Pollarding 20:32

25d ago20:32

20:32

Subscriber-only episode Today’s episode takes us into the world of pollarding, a classic pruning technique that’s still relevant in modern arboriculture. We explore the difference between pollarding and topping, explain why the term “pollard” can be misunderstood, and discuss its advantages, especially in urban environments. You’ll also learn about…

1
🔒 Soil Decompaction 10:57

26d ago10:57

10:57

Subscriber-only episode In today's episode, we delve into the crucial topic of soil decompaction. Compacted soils severely hinder tree root growth and water infiltration, impacting overall tree health. We explore practical methods for addressing soil compaction, including air spading, vertical mulching, and the use of compost or biochar. You’ll als…

1
29. How to Prepare for WSET Level 3 (Without Overwhelm) 12:25

26d ago12:25

12:25

Wine Educate Newsletter – Sign up for exclusive content and class/trip updates Launchpad: WSET Level 3 Prep - Zoom Course - May 11th | Wine Educate In this episode of Wine Educate, host Joanne Close helps you get ready for WSET Level 3 with a practical, encouraging guide to prep—without the panic. Whether you’ve already signed up or you’re just thi…

1
Nutrition Security from Farm to Fork with Isabelle Kamariza 57:20

25d ago57:20

57:20

Developing local solutions to complex issues is foundational to global change. When it comes to food insecurity and health services, we recognize the need for local solutions at scale. Joining the show today from Rwanda is Isabelle Kamariza who is the Founder and President at Solid'Africa. She comes on the show to share with us who Solid'Africa wor…

1
🔒 Function of Assimilation Aparatus 12:48

27d ago12:48

12:48

Subscriber-only episode In this episode of Talking Trees, we explore the function of the assimilation apparatus in trees—namely, the leaves and needles that drive photosynthesis and support tree vitality. We discuss: The structure and role of leaves and needles in gas exchange and energy production How morphological and anatomical adaptations help …

1
Episode 87: Birch Bark Magic - Traditional Mi'kmaq Medicine Meets Modern Chemistry 1:01:57

27d ago1:01:57

1:01:57

Dr. Matthias Bierenstiel shares how ancient Mi'kmaq knowledge about birch bark medicine combined with modern chemistry is transforming skin care and challenging Western approaches to medicine. • Dr. Bierenstiel, a chemistry professor at Cape Breton University, partnered with Mi'kmaq Studies professor Tuma Young to research traditional birch bark ex…

1
RECAP - CW 13/2025 11:23

28d ago11:23

11:23

This is your weekly summary of the Talking Trees podcast. Let’s revisit the fascinating episodes we explored this week: 🌱 Monday 114 - Pulleys and Friction Rings We kicked off the week with a look at the essential climbing gear—pulleys and friction rings. We discussed their functions, differences, and best use cases in tree work. 🧗 Tuesday 115 - St…

1
🔒 Trees and Bats 13:36

29d ago13:36

13:36

Subscriber-only episode In this episode of Talking Trees, we explore the close relationship between trees and bats, highlighting the essential role trees play as habitat providers for these fascinating nocturnal mammals. Bats rely on old, hollow, or dead trees for roosting, breeding, and protection—making arboriculture an important ally in bat cons…

1
Alex Shigo 9:01

30d ago9:01

9:01

In this episode of Talking Trees, we pay tribute to Dr. Alex Shigo, the father of modern arboriculture. His groundbreaking research on tree biology, particularly the CODIT model (Compartmentalization of Decay in Trees), revolutionized how arborists understand and care for trees. We discuss: His pioneering work at the U.S. Forest Service The shift f…

1
🔒 Cultus Arborum 13:08

1M ago13:08

13:08

Subscriber-only episode In this episode of Talking Trees, we explore the cultural and spiritual significance of trees throughout human history, focusing on the concept of Cultus Arborum—the ancient reverence and ritual worship of trees across civilizations. We discuss: Historical tree veneration – From sacred groves in Celtic and Germanic tradition…

1
28. WSET Level 3: What to Expect from the Course and the Exam 9:37

1M ago9:37

9:37

Wine Educate Newsletter – Sign up for exclusive content and class/trip updates. Connect with Wine Educate: Website: www.wineeducate.comInstagram: @wineeducateEmail: [email protected] Newsletter: Sign up for exclusive content! Thinking about taking WSET Level 3 but not sure what you're signing up for? In this episode, host Joanne Close walks yo…

1
🔒 Mechanosensitive Control of Plant Growth 14:58

1M ago14:58

14:58

Subscriber-only episode In this episode of Talking Trees, we explore the fascinating world of mechanosensitive control in plant growth—how trees and plants perceive, respond to, and even adapt to mechanical forces from their surroundings and their own structure. We discuss: Mechanosensing basics – How plants detect tension, compression, and mechani…

1
🔒 Stockholm Soils 20:00

1M ago20:00

20:00

Subscriber-only episode In this episode of Talking Trees, we explore the Stockholm Soil system—an innovative urban tree planting method designed to support healthy root development and infrastructure compatibility. This Swedish-engineered approach combines load-bearing stone aggregates with structured soil and biochar, enabling robust tree growth e…

1
27. The Big Jump – Why WSET Level 3 Feels So Much Harder Than Level 2 10:35

1M ago10:35

10:35

Wine Educate Newsletter – Sign up for exclusive content and class/trip updates. Connect with Wine Educate: Website: www.wineeducate.comInstagram: @wineeducateEmail: [email protected] Newsletter: Sign up for exclusive content! Episode Summary: In this first episode of a brand-new series, Joanne dives into what makes the leap from WSET Level 2 t…

1
Ukrainian Child Data, Kenya's Tatu City and Leading Across Cultures 38:12

1M ago38:12

38:12

It's March and the madness extends far beyond college basketball. In this episode, we look at the ramifications of losing Ukrainian child data through recent federal budget cuts and why upholding these children's humans right should matter to American Christians. Then we look at a new city development in Kenya that has some unique aspects that give…

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