Arborist Podcast – Details, episodes & analysis

This episode explains soil organisms and the soil food web for the ISA Arborist Certification Exam. Soil biology plays a major role in nutrient cycling, soil structure, and long-term tree health.You’ll learn how bacteria, fungi, protozoa, nematodes, and larger organisms interact, how organic matter fuels soil systems, and why biologically active soils support healthier trees. This episode connects soil biology to earlier discussions on structure and water.This episode is part of a larger ISA Arborist Certification study podcast series focused on soil function and root health.

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This episode focuses on soil compaction and its effects on trees for the ISA Arborist Certification Exam. Soil compaction is one of the most common causes of tree stress in urban environments and appears frequently on the exam.You’ll learn what compaction is, how it reduces pore space, why it limits oxygen and water movement, and how it restricts root growth. This episode also explains why compaction symptoms are often mistaken for nutrient or drought problems.This episode is part of a structured ISA Arborist Certification study podcast series covering soils and water in detail.

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This episode covers tree growth and development for the ISA Arborist Certification Exam, including primary and secondary growth.

You’ll learn how trees grow taller, wider, and respond to pruning over time.

Ideal for ISA Arborist Certification candidates studying structure and form.

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This episode explains leaves and photosynthesis for the ISA Arborist Certification Exam. Leaves produce energy, regulate water loss, and indicate tree health.You’ll learn how photosynthesis, transpiration, and gas exchange affect growth and stress response.Perfect for ISA Arborist Certification candidates reviewing canopy biology.🎥 Full video lessons available on YouTube

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This episode explains tree trunk and stem structure for the ISA Arborist Certification Exam, including bark, sapwood, heartwood, and growth rings.

You’ll learn how stems support trees, transport water and energy, and influence structural stability.

Designed for ISA Arborist Certification candidates needing a clear stem and trunk overview.

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This episode focuses on tree roots for the ISA Arborist Certification Exam, covering root structure, growth patterns, and function. Roots control anchorage, water uptake, and energy storage.

You’ll learn why most roots grow outward, not downward, and how soil conditions affect stability and health.

This episode is essential for ISA Arborist Certification candidates studying tree biology and risk.

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This episode explains tree cells and tissues for the ISA Arborist Certification Exam, focusing on xylem, phloem, and cambium. These tissues control water movement, energy transport, growth, and defense in trees.

You’ll learn how internal tree structure explains pruning response, decline, and damage patterns tested on the exam.

This video is for ISA Arborist Certification candidates who want to understand tree biology beyond memorization.

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This episode covers tree classification basics for the ISA Arborist Certification Exam, including broadleaf vs conifer, deciduous vs evergreen, and gymnosperms vs angiosperms. Understanding classification helps arborists predict tree growth, structure, and response to stress.

You’ll learn how these categories overlap, why they matter on the exam, and how classification supports tree identification and management decisions.

This video is ideal for ISA Arborist Certification candidates needing a clear, exam-focused overview of tree classification concepts.

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This episode explains what arboriculture is and what arborists do for the ISA Arborist Certification Exam. This short podcast video introduces the profession of arboriculture and explains why tree biology is the foundation of all arborist practices tested on the exam.

You’ll learn how arboriculture differs from forestry, what responsibilities arborists have, and why understanding tree biology is critical for proper pruning, diagnosis, and tree management. This episode sets the framework for everything that follows in the ISA study guide.

This video is designed for ISA Arborist Certification candidates, including students, working arborists, and exam retakers who want a clear starting point. Subscribe for more ISA Arborist Exam study guide podcasts.

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This episode explains soil water movement, drainage, and aeration for the ISA Arborist Certification Exam. Understanding how water and oxygen interact in soil is essential for diagnosing both drought stress and flooding-related decline.You’ll learn the difference between gravitational water and plant-available water, what field capacity means, and why poorly drained soils often cause root stress even when moisture is present. This episode connects soil physics directly to root health and canopy symptoms.This podcast is part of a larger ISA Arborist Certification study series focused on soil function and tree–soil relationships tested on the exam.