Attack By Plant Organisms on Southern Pine Wood

Southern pine wood can be deteriorated by stain, mold, and decay fungi from the time the tree is felled until the wood is thoroughly dried or preservatively treated. Bacteria also attack under some conditions. Control methods are available for protecting most green or seasoned products and most products in use. The current trend toward basic research should provide answers to meet the needs of more exacting standards. Ceratocystis and Diplodia natalensis are the most important of the many fungus species that stain pine logs and lumber. The initial decay fungus is almost always Peniophora gigantea, which has the properties of both white and brown rots. Later the brown rot Lenzites saepiaria enters. The usual mold is Trichoderma spp. Quick utilization is the only fully satisfactory means of preventing deterioration of saw logs and veneer bolts. Fungus deterioration of wood in use involves mainly decay.

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