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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592


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Source: Forest Prod. J. 52(11/12):51-52.


Publication Year: 2002  View PDF »

Category: Journal Articles

Abstract: Eastern white pine often develops a surface brown non-microbial stain when kiln-dried. Such staindowngrades high quality lumber and is likely to occur when fresh, unseasoned lumber is stacked during warm weather prior to kiln-drying. Use of chemical reducing agents or pH alteration have been successful control agents, but may have combinasome practical limitations for general use. A new combination of fungicides (chlorothalonil and methylene bis[thiocynate]) was tested for ability to also control brown stain in pine lumber by a short dip treatment of green lumber. The results from two independent laboratories indicated that the new formulation was more effective than sodium thiosulfate, and similar in performance to sodium azide.

File size: 54 kb(s)

Date posted: 04/05/2010

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