On June 1st, ISA Board Certified Master Arborist, Lindsey Purcell presented a live webinar titled, "What Do Trees Think About Pruning?" which explained how to recognize the biological impact of pruning wounds on trees, the response growth of trees and resource allocation, and the positive impacts of structural pruning.

Purcell explained the difference between hormones and Plant Growth Regulators (PGRs) while showing how they are related to tree pruning.

 
He touched on the benefits of pruning with intent and planning on tree growth when designing landscapes. Purcell went on to give examples of pruning mistakes, explained research, and the CODIT defense model.

Earn ISA, APLD, PGMS, and NALP CEUs by taking this course OnDemand. Click here to sign up for the session.

Learning Objectives:
1. Recognize the biological impact of pruning wounds on trees.
2. Identify the response growth of trees and resource allocation when pruning live branches.
3. Recognize the positive impacts of structural pruning in the nursery and landscape.
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Webinar Description:
What Do Trees Think of Pruning? -They may not say much about it, but how they respond to this important arboriculture practice is often not fully understood by practitioners. Often, pruning specifications and directives are provided without explanation of the biology behind our discourse. This session will provide a survey into the impact of pruning relative to physiological and biomechanical responses including hormonal reactions, phenolic influences, and carbon allocation, from trees to improve our outcomes from pruning.