Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Prevention of Mold Growth on CCA-treated Radiata Pine Lumber by Incorporation of Moldicide into the CCA Solution

  • Kang, Sun-Mi (College of Life and Environmental Sciences, Korea University) ;
  • Kim, Gyu-Hyeok (College of Life and Environmental Sciences, Korea University)
  • Received : 2006.09.27
  • Accepted : 2006.10.26
  • Published : 2007.03.25
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Abstract

Surface mold fungi growing on CCA-treated wood could be inhibited effectively by the incorporation of moldicide into treating solution. In this study, moldicides compatible with the CCA solutions from various commercial moldicides were screened, and then their optimum concentrations for controlling surface mold on CCA-treated radiata pine sapwood were examined through both the laboratory and the field trials. Among nine commercial moldicdes tested, two substituted isothiazolinones, moldicide A containing 2-n-octyl-4-isothiazoline-3-one and moldicide B containing 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one, were chemically compatible with CCA solution. The optimum concentration to be incorporated into 2% CCA treating solution was determined to be 0.001% for moldicide A and 0.003% for moldicide B.

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References

  1. American Standards for Testing and Materials. 1996. Standard method for testing fungicides for controlling sapstain and mold on unseasoned lumber. ASTM Standard D4445-91. West Conshohocken, PA. USA
  2. Harris, E. 2003. Deep in chemicals: A consultant analyzes the trausition to new preservatives the wood treating industry is undertaking. http://www.timberprocessing.com/vserver/hb/display.cfm?MagazineKey=5&IssueKey=267&SectionKey=274&ArticleKey=3229
  3. Kang S.-M. 2006. Fungal discoloration of CCA-treated radiata pine lumber and its prevention. Unpublished MS thesis, Korea University, Seoul, Korea
  4. Kang S.-M., J.-J. Kim, and G.-H. Kim. 2006. Microfungi from CCA-treated wood and their tolerance to CCA. Holzforschung (Submitted)
  5. Kim, G.-H., S.-M. Kang, and J. J. Morrell. 1999. Laboratory evaluation of selected anti-stain chemicals for control of fungal staining on Ginkgo sapwood. Forest Products Journal 49(3): 49-52
  6. Miller D. J. and J. J. Morrell. 1989. Controlling sapstain: trials of product group I on selected western softwoods. Research Bulletin 65. Forest Research Laboratory, Oregon State University, Corvallis, OR, USA. 12 p
  7. Miller D. J., J. J. Morrell, and M. Mitchoff. 1989. Controlling sapstain: trials of product group II on selected western softwoods. Research Bulletin 66. Forest Research Laboratory, Oregon State University, Corvallis, OR, USA. 10 p
  8. Miller D. J. and J. J. Morrell. 1990. Controlling hardwood sapstain: trials of sapstain-preventive products on red alder lumber. Research Bulletin 68. Forest Research Laboratory, Oregon State University, Corvallis, OR, USA. 8 p
  9. Morrell, J. J. 2004. Mold on treated wood. Proceedings of American Wood-Preservers' Association. pp. 84-87
  10. Morrell, J. J., C. M. Freitag, and A. Silva. 1998. Protection of freshly cut radiata pine chips from fungal attack. Forest Products Journal 48(2): 57-59