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The subjectivity of the estimation of natural wood’s resistance to destruction by termites based on visual assessment in laboratory tests

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Krajewski A. , Witomski P. , Oleksiewicz A.

Drewno : prace naukowe, doniesienia, komunikaty

2021

tom vol. 64, nr 207

159--166

This study concerns visual assessment of the degree of damage done to Pinus sylvestris L. wood blocks by Reticulitermes lucifugus Rossi, in an experiment conducted according to ASTM D 3345-08:2017. The six evaluators made their assessments individually. The differing results obtained from the evaluators are a cause for concern. Visual assessment of the degree of wood damage can vary significantly from person to person. Measurement of weight loss seems to be a better way of evaluating the degree of damage done to wood samples by termites in laboratory tests.

The susceptibility of neolithic waterlogged beech wood (Fagus sylvatica L.) to destruction by Reticulitermes lucifugus Rossi

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Krajewski A. , Lisiecka E. , Drożdżek M. , Witomski P. , Wójcik A.

Drewno : prace naukowe, doniesienia, komunikaty

2015

tom vol. 58, nr 195

59--68

The article presents the results of a test on the resistance of Neolithic waterlogged beech wood (Fagus sylvatica L.) to destruction by subterranean Reticulitermes lucifugus Rossi. Methodology consistent with the ASTM D 3345-08 Standard was applied in the experiment. In the coercion test, the modern beech wood was destroyed at an intermediate stage between light attack and moderate attack with penetration, whereas the pine sapwood was heavily damaged. Under the same conditions, the waterlogged beech wood was seriously damaged or completely destroyed by the termites. However, unlike the modern pine and beech wood, all the termites died after feeding on the waterlogged beech wood. In spite of the complete destruction of the waterlogged beech wood in the coercion test, it seems that under natural conditions where there is a possible choice between different wood species, the infestation by termites of waterlogged wood uncovered in archaeological work does not necessarily happen. Wood containing few nutritional substances and substantial lignin, as well as having a high moisture content facilitating the development of parasitic microorganisms, will deter termites.

„Więźniowie natury” – rzecz o kształtowaniu się ludzkiego spojrzenia (przykład Maurycego Maeterlincka)

88%

Gielata I.

Białostockie Studia Literaturoznawcze

2016

tom 9

Relying on Maurice Maeterlinck’s essays, the article reflects on the question of human perception of insects, especially termites. Spatially enclosed termitemounds impose specific way of life which, in Maeterlinck’s view, resembles human way. Following Gernat Böhme’s argument, this realization can only be attained if one accepts emotions in perception. By writing about “places of imprisonment” of living creatures, Maeterlinck was the first to depict human living space as natural imprisonment. At the same time, in his entomological monographs he initiated human experiencing of nature; the process which Böhme described as situating man in his surroundings.

Some problems in the results assessment in laboratory evaluation of wood for resistance to termites based on visual ratings of attack on test blocks

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Krajewski A. , Oleksiewicz A. , Witomski P.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

2018

tom No. 103

181--184

The aim of the work is to check the visual assessment of the degree of damage to Pinus sylvestris L. wood blocks by Reticulitermes lucifugus Rossi in an experiment made according to ASTM D 3345-08 [2009]. The three evaluator made the assessment individually. The differing results obtained by the three evaluator give food for thought. The varied results of the three evaluator assessments it gave rise to thoughts. The visual assessment of the degree of wood damage done by different people can vary significantly.

Celem pracy jest sprawdzenie zgodności oceny wizualnej stopnia uszkodzenia klocków drewna Pinus sylvestris L. przez Reticulitermes lucifugus Ross w doświadczeniu zrobionym według ASTM D 3345-08 (2009). Ocenę zrobili indywidualnie trzej współautorzy. Różniące się wyniki uzyskane przez trzech współautorów dają wiele do myślenia. Wizualna ocena stopnia uszkodzenia drewna przez termity wykonana przez różne osoby może się istotnie różnić.