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The Probable Mechanism of the Protective Action of Resin in Fire Wounds on Red Pine

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Fire wounds are generally considered common courts of entrance for wood destroying fungi. Undoubtedly in many tree species such wounds are commonly invaded by wood destroyers, but in Minnesota a large majority of mature trees of red pine (Pinus resinosa) are entirely free of decay behind fire wounds, even when such wounds include one-fourth the circumference of the tree and have been present for over half a century. The large amount of resin in the wounds acts as a water-proofing layer, and thus prevents the entrance of wood-destroying fungi.
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Document Type: Journal Article

Affiliations: Formerly instructor in forest pathology at the University of Minnesota

Publication date: 01 December 1938

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