Holz als Roh- und Werkstoff

, Volume 65, Issue 5, pp 353–358 | Cite as

A comparative study on brown-rot fungus decay and subterranean termite resistance of thermally-modified and ACQ-C-treated wood

  • Jun Li Shi
  • Duygu Kocaefe
  • Terry Amburgey
  • Jilei Zhang
Originalarbeiten Originals


The resistance of thermally-modified and Alkaline Copper Quaternary type C (ACQ-C) treated aspen (Populus tremuloides Michx), jack pine (Pinus banksiana Lamb.), yellow-poplar (Liriodendron tulipifera L.), and Scots pine (Pinus sylvestris L.) against the brown-rot fungus (Gloeophyllum trabeum) and Eastern U.S. subterranean termite (Reticulitermes flavipes) was studied. Wood materials were thermally-modified at a temperature of 210 °C for 15 min. ACQ-C was impregnated into yellow-poplar and jack pine wood at three different retention levels and at each level both leaching and non-leaching procedures were conducted. Results indicate that ACQ-C-treated yellow-poplar and jack pine became significantly more resistant to the brown-rot fungus compared to the thermally-modified wood and the untreated control. Thermally-modified yellow-poplar and jack pine were more resistant to this fungus than untreated wood. For aspen and Scots pine, the resistance to G. trabeum was improved after the thermal modification, but it remained susceptible to this brown-rot fungus decay. Termite susceptibility of thermally-modified aspen, jack pine, and yellow-poplar was comparable to that of untreated controls. Significantly greater termite attack occurred on thermally-modified Scots pine wood than it did on untreated wood. This likely is attributed to some compounds contained in Scots pine wood that inhibited termite attack.


Untreated Wood Average Weight Loss Chromated Copper Arsenate Retention Level Subterranean Termite 
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Vergleichende Untersuchung des Braunfäulebefalls und der Bodentermitenresistenz von wärmebehandeltem und mit ACQ-C behandeltem Holz


Die Resistenz von wärmebehandelter sowie mit ACQ-C (Alkalisch-Kupfer-Quaternäre- Verbindung) behandelter Aspe (Populus tremuloides Michx), Jack Pine (Pinus banksiana Lamb.), Gelbpappel (Liriodendron tulipifera L.) und Kiefer (Pinus sylvestris L.) gegen den Braunfäulepilz Gloeophyllum trabeum und gegen die ostamerikanische Bodentermite Reticulitermes flavipes wurde untersucht. Die Holzproben wurden bei einer Temperatur von 210 °C über eine Dauer von 15 min wärmebehandelt. Gelbpappel- und Jack Pine Proben wurden mit jeweils 3 unterschiedlichen Einbringmengen von ACQ-C imprägniert und dann sowohl ausgewaschen als auch nicht ausgewaschen geprüft. Die Ergebnisse zeigen, dass das mit ACQ-C behandelte Holz der Gelbpappel und Jack Pine im Vergleich zu wärmebehandeltem und unbehandeltem Holz gegen den Braunfäulepilz deutlich resistenter war. Wärmebehandelte Gelbpappel und Jack Pine waren gegen diesen Braunfäulepilz resistenter als unbehandeltes Holz. Die Resistenz von Aspe und Kiefer gegen den Braunfäulepilz war nach Wärmebehandlung zwar verbessert, jedoch waren diese Holzarten auch weiterhin für diese Pilzart anfällig. Die Termitenanfälligkeit von wärmebehandelter Aspe, Jack Pine und Gelbpappel war gegenüber unbehandelten Kontrollproben nicht erkennbar verbessert. Bei wärmebehandeltem Kiefernholz war ein signifikant höherer Termitenbefall als bei unbehandeltem Holz zu verzeichnen. Grund dafür könnte sein, dass in unbehandeltem Kiefernholz einige den Termitenbefall hemmende Verbindungen vorhanden sind.


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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Jun Li Shi
    • 1
  • Duygu Kocaefe
    • 2
  • Terry Amburgey
    • 1
  • Jilei Zhang
    • 1
  1. 1.Department of Forest ProductsMississippi State UniversityStarkvilleUSA
  2. 2.Department of Applied ScienceUniversity of Québec at ChicoutimiChicoutimiCanada

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