Your search resulted in 79 documents. Displaying 25 entries per page.
Using X-ray micro-CT to evaluate density loss in anobiid infested wood
2019 - IRG/WP 19-10956
…had as main objective the evaluation of the impact of anobiid damage on timber elements by establishing an empirical correlation between lost material percentage (LM%, consumed by beetles) and apparent density (original – OTD and residual – RTD). Since the beetles’ attack produces a diffuse damage with a…
J L Parracha, M F Pereira, A Maurício, P Faria, L Nunes
Validation by micro-computed tomography of an assessment method to measure the residual strength of anobiids infested timber
2019 - IRG/WP 19-20650
…structural elements, which have been subject to attack by anobiids, is presented. The main objective of the study was to establish a valid empirical correlation between the lost material percentage (consumed by beetles) and original/residual apparent density. Since the beetles’ attack produces a diffuse damage…
J L Parracha, M F Pereira, A Maurício, P Faria, L Nunes
Analysis of larval development and feeding of an Anobiid beetle using X-ray computed tomography
2020 - IRG/WP 20-10961
Priobium sp., an anobiid beetle, can attack wood used for historic constructions in Japan. Its life history and feeding biology, especially larval development and behavior, are poorly understood because the beetles are hidden inside wood most of the time. We used X-ray…
H Watanabe, R Kigawa, Y Fujiwara, Y Fujii
Structural health assessment of wood - A comparison of methods for determining the spatial spread of fungal infestation in beams and rafters
2025 - IRG/WP 25-11051
…entire building through replacement, and at preventing the infestation from spreading further. In practice, components are cut out of the structure to such an extent that the affected parts are safely removed. An addition is made beyond the visible area of the infestation. However, there is no scientific evidence to…
C Brischke, N Sommerfeld, E Flohr, A K Mayer, S Bollmus
Real-time evaluation of connected in-ground termite stations in laboratory colonies of Coptotermes gestroi and Prorhinotermes sp.
2025 - IRG/WP 25-11082
Subterranean termites represent a major challenge in infestation management and monitoring. This study evaluates the effectiveness of connected in-ground stations for termite control, incorporating an advanced electronic device developed and patented by Groupe Berkem (Novaterm®). These stations are linked to a…
M Butin, F Chopinet, S Savriama, D Messaoudi
The impact of common fire retardancy salts and minerals on further properties of wood
2025 - IRG/WP 25-30821
…on the surface, but showed reduced blue-stain fungal infestation, improving colour stability. However, beech and oak exhibited colour changes indoors, with potassium oxalate improving stability. Furthermore, the minerals cannot protect wood structural compounds from degradation due to UV light. Mechanical tests…
T Franke, T Volkmer
A Case Study of Vogvarjeva hiša, a Local Ethnographic Museum
2025 - IRG/WP 25-41027
The Vogvarjeva hiša in Spodnje Duplje, Slovenia, is an example of traditional 18th Century wooden architecture and an important element of the region’s cultural heritage. The building was constructed from local timber on stone foundations and reflects the t…
D Kržišnik, L Kopač, D Jones, M Humar
A Study on the Damage and Conservation of Wood in Dense Areas of Wooden Buildings
2025 - IRG/WP 25-50412
…timber components of wooden houses from the termite infestation. And the actual results indicate that it is indeed possible to establish a harmonious coexistence between wooden structures and their surrounding environments.
In the future, if proper proactive preservation strategies are established not only…
N-C Ko, Y-J Lee, H-D Kim
Management of invasive West Indian drywood termite in Queensland: Transition from mandatory to voluntary treatment
2023 - IRG/WP 23-11002
…was first discovered in 1940s and later an established infestation was discovered in Maryborough, Queensland in 1966 and then in Brisbane and Bundaberg in 1975. In 1977 the Queensland Government enacted the WIDT Prevention and Control Program to inspect, survey, and control the termite. The prime drivers of the…
C Fitzgerald, B Hassan
Laboratory durability testing of preservative treated wood products – first attempts and observations
2023 - IRG/WP 23-20697
…on the specimens were not possible, but information about infestation pathways and decay patterns were extracted from the measurements. While the application of end-grain sealants hindered fungal decay, pre-drying of the specimens led to the formation of checks which expedited decay.
C Brischke, M Sievert, M Schilling, S Bollmus
Above Ground Proximity Decay Field Trial of Modified ACQ-A, Wolman® CA-B and Wolman® CA-C in Taiwan
2023 - IRG/WP 23-30793
…wood preservative in preventing decay fungi and termite infestation can be ranked as modified ACQ-A < Wolman® CA-C < Wolman® CA-B. All untreated control samples had failed after 5 years of field trial, none of the wood preservative treated samples failed during the field trial.
J-Y Gan
A mini review on climate change impact on bio-ecology of subterranean termites
2023 - IRG/WP 23-50375
…barriers as protection will be the reasons for new infestation to surface. Protecting service wood, enforcing sanitary requirements, policing imports, and eliminating colony by baits will be necessary to keep future check in place.
P Dhang
Dynamics of fungi colonization on the surface of Scots pine wood during natural weathering in different European climate zones
2022 - IRG/WP 22-10984
Wood The presence of fungi leads to biomaterial decay and/or changes in aesthetical appeal. The start of fungi colonization as well as the following growth on wood are primarily influenced by four factors: ambient temperature, moisture history of the object, a…
F Poohphajai, O Myronycheva, O Karlsson, L Rautkari, J Sandak, A Sandak
Changes in topochemistry and mechanical properties of Beech (Fagus orientalis L.) by natural fungus infestation
2022 - IRG/WP 22-10986
…and compression strength, were also apparent due to infestation.
H Sivrikaya, M Rehbein, F Divos, S Adamopoulos, R Hosseinpourpia
Application of an Ultrasound-based Instrument to Evaluate Condition of Drywood Termite Infested Timber Components
2022 - IRG/WP 22-11000
…component were estimated to degrade due to drywood termite infestation based on the three-dimensional image reconstruction produced from the characterization of the ultrasound waves assessment results.
S Fauziyyah, L Karlinasari, D Nandika, R Wimmer
A new approach to wood protection: Potential of biologically synthesised CuO and ZnO nanoparticle formulation as a wood preservative
2022 - IRG/WP 22-30758
…destroyed completely as an indication of active termite infestation. Formulation of P. hysterophorus leaf extract and CuO nanoparticles protected the treated rubberwood specimens from termite attack for a period of three months and CuO-P. pinnata for six months. Whereas formulations of L. camara, N. oleander and…
Shiny K S, R Sundararaj, N Mamatha
Comprehensive protection of timber in seawater
2020 - IRG/WP 20-10970
…various laboratory, field and practical experiments, the infestation risks, pest occurrence and protection possibilities of native coniferous wood species were investigated. However, the main focus of this paper is on laboratory studies on the fungicidal effectiveness of sea salt (sodium chloride) against…
E Melcher, J Müller, T Huckfeldt
Elimination of colonies belonging to higher termite group using insecticide bait: A short review
2018 - IRG/WP 18-10908
Controlling termite infestation by using baiting method is gaining popularity around the world. Lower group of termites particularly belonging to the genus Coptotermes have proven to be easy to control by this method due to their nature of feeding. However termites belonging to…
P Dhang
Natural resistance of Bambusa vulgaris to termite and powder-post beetle attack in laboratory and graveyard tests
2018 - IRG/WP 18-10925
…to termite resistivity, resistance to powder-post beetles infestation varied significantly along the culm length from base to the top while the resistance among the three age classes were similar. The bamboo was grouped into resistant classes based on the age and the portion of the culm from which samples were…
N A Sadiku, S O Bada
Resistance of modified wood to termite attack assessed in laboratory and field testing: A review of internal research
2018 - IRG/WP 18-40824
…in countries of the northern hemisphere where termite infestation poses little to no risk, much less investigations were conducted and do report on the resistance against attack by insects, especially subterranean termites. Hence, the overall aim of this study was to review recent internal research activities…
L Emmerich, P Gascón-Garrido, H Militz
Design and performance prediction of timber structures based on a factorization approach
2017 - IRG/WP 17-20603
…the exposure-induced dosage that can lead to fungal infestation and subsequent decay. On the other hand, the material resistance of wood stands in opposition to exposure and is itself affected by the inherent protective properties of wood and its ability to take up and release water in liquid or vaporous form.…
L Meyer-Veltrup, C Brischke
Bundle tests - Simple alternatives to standard above ground field test methods
2016 - IRG/WP 16-20581
…close to the contact faces was sufficient to allow fungal infestation and decay. Also from a practical point of view the set ups performed in a promising way: specimen preparation was simple and inexpensive, decay assessments were easy, and decay progress sufficiently fast, partly faster than expected from a…
C Brischke, L Meyer-Veltrup
Remote sensing for detection of termite infestations—Proof of Concept
2015 - IRG/WP 15-10846
…and robust method of detecting Reticulitermes flavipes infestations in structural members of remote bridges, homes and other wooden structures and transmitting these results to internet cloud storage thus obviating routine travel to these structures for periodic visual inspections. Duplicate stainless steel tanks…
F Green III, R A Arango, C R Boardman, K J Bourne, J C Hermanson, R A Munson
Toxic effect of Melia azedarach L. unripe fruit extracts onto Reticulitermes flavipes Kollar (Isoptera: Rhinotermitidae)
2015 - IRG/WP 15-10848
…economic losses are huge. In Chile there have been foci of infestation in the Metropolitan Region and in the Region of Valparaíso with a big expansion in the last years. This study evaluated in laboratory the direct toxic effect of extracts from Melia azedarach L. (Meliaceae) unripe fruits onto R. flavipes workers.…
A Huerta Fuentes, B Rubio Díaz, Í Chiffelle Gómez
Repellency of Schinus molle L. leaf extracts onto Reticulitermes flavipes Kollar (Isoptera: Rhinotermitidae)
2015 - IRG/WP 15-10850
…economic losses are huge. In Chile there have been foci of infestation in the Metropolitan Region and in the Region of Valparaíso with a big expansion in the last years. This study evaluated in laboratory the repellence effect of extracts from Schinus molle L. (Anacardiaceae) new leaves onto R. flavipes. The…
A Huerta Fuentes, S Constenla Cáceres, Í Chiffelle Gómez