Week_11B___Wood_Decay

Week_11B___Wood_Decay - Rotten Wood Just Aint No Good(Wood...

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April 9 Rotten Wood Just Ain’t No Good! (Wood Decay)
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WOOD DECAY In standing trees • In wood products
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Events Leading to Decay in a Standing Tree 1. Wound to expose wood
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Events Leading to Decay in a Standing Tree 1. Wound to expose wood 2. Colonization of exposed wood by bacteria
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Events Leading to Decay in a Standing Tree 1. Wound to expose wood 2. Colonization of exposed wood by bacteria 3. Colonization by “pioneer” molds
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Events Leading to Decay in a Standing Tree 1. Wound to expose wood 2. Colonization of exposed wood by bacteria 3. Colonization by “pioneer” molds 4. Decay by mushrooms, brackets, and related fungi
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C ompartmentalization O f D ecay I n T rees The CODIT Concept Alex Shigo
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Not-so-good CODIT Poor CODIT
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Good CODIT Not so good CODIT
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Factors Affecting Amount of Decay in a Tree 1. Size of the wound
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Factors Affecting Amount of Decay in a Tree 1. Size of the wound 2. Vigor of the tree
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Factors Affecting Amount of Decay in a Tree 1. Size of the wound 2. Vigor of the tree 3. Species of tree
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Factors Affecting Amount of Decay in a Tree 1. Size of the wound 2. Vigor of the tree 3. Species of tree 4. Genetic makeup of tree
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Action to Minimize Decay After Wounds Have Occurred 1. Water (and fertilize ?) the tree
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Action to Minimize Decay After Wounds Have Occurred 1. Water (and fertilize ?) the tree 2. Prevent attack by other pests
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Week_11B___Wood_Decay - Rotten Wood Just Aint No Good(Wood...

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