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Laboratory screening of thermo-mechanically densified and thermally modified timbers for resistance to the marine borer Limnoria quadripunctata


Thermo-mechanically densified material of five different wood species (English oak, European ash, European beech, Norway spruce, poplar) was subjected to three different vacuum-heat treatment processes (A 230 °C/20% vacuum; B 230 °C/80% vacuum; C 240 °C/20% vacuum) and tested for its resistance against the marine borer Limnoria quadripunctata by comparing their faecal pellet production rates. The three different treatments caused a notable reduction in the feeding rates of up to 66% indicating significantly increased durability against Limnoria if exposed to marine environment. Neither the treatment temperature nor the application of a higher vacuum affected the faecal pellet production significantly.

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The authors gratefully acknowledge financial support from German Federal Ministry of Education and Research for the Leading-Edge Cluster BioEconomy Project VP 1.11—DURAPRESSTIMBER (Grant Numbers 031A440A–031A440D). The authors also thank the project partner timura Holzmanufaktur GmbH and ter Hürne GmbH & Co. KG for collaboration. COST Action FP 1303 ‘Performance of Bio-Based Building Materials’ is acknowledged for granting the first author a Short Term Scientific Mission.

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Correspondence to Malte Janus.

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Janus, M., Cragg, S., Brischke, C. et al. Laboratory screening of thermo-mechanically densified and thermally modified timbers for resistance to the marine borer Limnoria quadripunctata . Eur. J. Wood Prod. 76, 393–396 (2018).

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