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Diagnosis and Treatment. Every ISA Arborist Must Know
Description
In this episode of the Arborist Podcast, we dive deep into one of the most critical domains of the ISA Certified Arborist exam: Diagnosis and Treatment.
Representing 9% of the exam, this domain isn't about guessing—it's about a logical, step-by-step process. We break down the essential framework every professional arborist needs to master to identify tree health issues accurately and recommend effective management plans.
What you’ll learn in this episode:
The First Rule of Diagnosis: Why tree identification is your most important starting point.
Signs vs. Symptoms: How to tell the difference between what the tree is doing and what is actually causing the problem.
Biotic vs. Abiotic Disorders: Recognizing the difference between living pests and environmental stressors like drought or soil compaction.
PHC & IPM Principles: Moving from diagnosis to action using Plant Health Care and Integrated Pest Management.
Exam Strategies: Common "traps" to watch out for, including why jumping to chemical treatments is rarely the right answer.
Whether you are studying for your certification or looking to sharpen your field skills, this episode provides a clear roadmap for solving tree health puzzles.
Next Up: Stay tuned for our next episode where we explore Trees and Construction, covering site disturbance and protection planning.
🎥 Full video lessons available on YouTube
Search: “Arborist Podcast” or visit: http://www.youtube.com/@arboristpodcast