Control of Brown Stain in Sugar Pine with Environmentally Acceptable Chemicals

Authors

  • Nancy D. Oldham
  • W. Wayne Wilcox

Keywords:

Kiln brown stain, chemical control, sodium azide, phosphoric acid, chelating agents, antioxidants, Pinus lambertiana

Abstract

Because of the hazards in using sodium azide for controlling brown stain, a less hazardous chemical was sought. Phosphoric acid was found to be the most successful treatment of the chemicals screened. A sufficient concentration of an iron chelating agent, in conjunction with lowered pH, resulted in a reduction in brown stain. Antioxidants were found to be ineffective.

References

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Published

2007-06-27

Issue

Number 3 / July 1981

Section

Research Contributions

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