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 symbiosis shape forest resilience and biodiversity in both natural and urban settings.

🧷 Tuesday 129 - Structural Substrates
This episode took a deep dive into engineered soil systems like CU-Structural Soil®, offering practical solutions to soil compaction in urban environments. Discover how to support root growth beneath pavement without sacrificing infrastructure stability.

✂️ Wednesday 130 - Tree Injections
We discussed vegetative endotherapy, a targeted method of delivering treatments directly into a tree’s vascular system. Explore the tools, applications, and best practices for pest, disease, and nutrient management.

📋 Thursday 131 - Who Should Pay to Protect Trees
We tackled the complex intersection of urban tree ordinances, legal frameworks, and environmental ethics. The Canton Township case revealed the challenges of enforcing tree protection policies.

✨ Friday 132 - Mark Johnston - Lifelong Arborist
A tribute to the impactful career of Dr. Mark Johnston, urban forestry leader and educator. From the UK to global influence, his work has helped shape arboriculture policy, education, and public engagement.

🐝 Saturday 133 - Chalara fraxinea
We ended the week with a sobering look at ash dieback. Learn how Chalara fraxinea, the emerald ash borer, and other stressors are decimating Fraxinus excelsior populations, and what science offers in response.

From fungal pathogens to engineered soils and tree protection law, this week brought a dynamic mix of knowledge. Stay curious and rooted – only on Talking Trees.

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