Control of Stain, Mold, and Decay in Green Lumber and Other Wood Products

This paper summarizes recommended seasoning practices and chemical treatments for the dipping or surface treatment of lumber and other wood products to prevent mold, stain, and decay damage during, seasoning and storage. Chemical dip treatments based on chlorinated phenols and organic materials alone or in mixtures and in combination with such compounds as borax and soda have been successfully used for this purpose. Dip treatment of lumber when combined with recommended handling practices for logs and lumber can result in almost complete elimination of losses due to fungi during air seasoning and a great improvement in lumber quality. The measures described in this paper for the control of fungi in logs and lumber have been found applicable to other forest products. Chemical dips are used to protect such products as veneer, staves, hoops, and shingles that are to be air seasoned. The use to be made of a product, such as for food containers, should be considered in determining whether such treatments can be safely and profitably used.

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