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Compartmentalization of decay in trees - Wikipedia
Alex Shigo - Wikidata
:max_bytes(150000):strip_icc()/prune1-56af5a3b3df78cf772c36006-5c61edfd46e0fb000184a2ab.jpg "Dr. Alex Shigo Biography - Arboriculture")
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A New Tree Biology
File:Representation of Alex Shigo's model of branch attachment in trees.png - Wikipedia
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Tree Basics by Dr. Alex Shigo || WesSpur Tree Equipment
New Tree Biology by Dr. Alex Shigo || WesSpur Tree Equipment
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Touch Trees" - Intelligent Tree Care
