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Publication Information

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Title: Tree Decay - An Expanded Concept

Author: Shigo, Alex L.;

Date: 1979

Source: Information Bulletin No. 419.[Broomall, PA:] U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station

Publication Series: Miscellaneous Publication

Description: The purpose of this publication is to clarify further the tree decay concept that expands the classical concept to include the orderly response of the tree to wounding and infection-compartmentalization-and the orderly infection of wounds by many microorganisms-successions. The heartrot concept must be abandoned because it deals only with decay-causing fungi and it states that these fungi grow unrestricted through heartwood after infection of fresh wounds. The heartrot concept emphasizes descriptions of decay-causing fungi and types of decayed wood. It describes disordered wood and events that occurred in the past. The expanded decay concept emphasizes the order of a compartmented tree, the order of compartmentalization, and the order of successions. Regulation of discoloration and decay depends on understanding compartmentalization and successions.

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Shigo, Alex L. 1979. Tree Decay - An Expanded Concept. Information Bulletin No. 419.[Broomall, PA:] U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station


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