Your search resulted in 888 documents. Displaying 25 entries per page.
New approach to improve the estimation of colony population in subterranean termites (Blattodea: Rhinotermitidae)
2016 - IRG/WP 16-10866
The aim of this study was to estimate the mortality and fading effects of dye markers Neutral red and Nile blue commonly used in the estimation of termite colony population, in order to determine the decrease rate from the initial number of marked and released termites. This rate can be considered in the application of the different indexes used to calculate the number of termites of the colony. I...
E Alcaide, R Molero, J Diz, M Gaju
Environmentally Sustainable Method of Termite Management using a baiting system: A case study in the Philippines
2016 - IRG/WP 16-50317
Environment and sustainability are key words for achieving product and business success. Use of chemicals in human vicinity such as homes and buildings are on the increase, thanks to a growing consciousness on pests. Using chemical insecticide is the main stay to counter these pests, but its role in environment is being scrutinized.Insect baiting technology has proven its success around the world ...
P Dhang
Evaluating the role of Actinobacteria in the gut of wood-feeding termites (Reticulitermes spp.)
2017 - IRG/WP 17-10880
Nitrogen has been shown to be a limiting nutrient across a range of xylophagous insects. These insects often rely on symbiotic microorganisms in the gut for nitrogen acquisition, via fixation of atmospheric nitrogen or break down of other available nitrogenous substances. In phylogenetically lower, wood-feeding termites, the role of nitrogen fixing bacteria has been well studied. However, there is...
Evaluating the role of Actinobacteria in the gut of wood-feeding termites (Reticulitermes spp.)
Analysis of hindgut bacterial phyla frequency and diversity in subterranean termites exposed to chitosan-treated wood
2017 - IRG/WP 17-10882
The termite hindgut contains a microbial community that symbiotically aids in digestion of lignocellulosic materials. For better understanding of the dynamics of the bacteria-termite relationship, a species survey of bacterial hindgut microbes in subterranean termites (Reticulitermes flavipes: Kollar) collected from Louisville, Mississippi was performed after exposure to chitosan-treated and contr...
O Raji, J D Tang, T Telmadarrehei, D Jeremic
Response of the symbiotic flagellate protists community of subterranean termites to sublethal amounts of biocides
2018 - IRG/WP 18-10911
Subterranean termites are quite efficient at extracting nutrients from lignocellulose. Their ability relies not only on the digestive tract physiology but also on symbiotic relationships established with flagellate protists and bacteria. This work aimed to screen the response of the flagellate protists community of the subterranean termite Reticulitermes grassei Clément to the ingestion of differ...
S Duarte, T Nobre, P Borges, L Nunes
Efficacy of Xotic Wood Preservative to control termites attack on Pinus patula wood
2018 - IRG/WP 18-10915
This study aimed at evaluating the efficacy of Xotic Wood Preservative on treated wood. Solignum was the experimental standard. The experiment was laid out in a Randomised Block Design carried out as a graveyard trial with 15 samples, 3 treatments and 5 replicates. The results showed that there was significant difference (P<0.05) in weight of the wood after four months of the graveyard trial. Term...
H Jenya, G Meke
Superior kempas hardwood protection with two proprietary microemulsion termiticdes based on permethrin and cyermethrin against Coptotermes termite attack under H2 an H3 weathered conditions found in buildings
2018 - IRG/WP 18-10931
SARPECO® and AXIL® solutions are water-based wood preservatives approved for dipping treatment providing 25 years of termite protection for solid wood and wood-based products in Europe and for more than 10 years in Indonesia. SARPECO® and AXIL® solutions are patented formulations based on concentrated microemulsions (ME) diluted with water as a dipping treatment but also for vacuum pressure tr...
D Messaudi, A H H Wong, C A D Tawi, N Bourguiba, O Fahy
Evaluation of the effect of zwitterionic buffers on termite gut protists
2018 - IRG/WP 18-10933
The thermal modification of wood is recognized as the most commercialized wood modification process. The treatment of wood at temperatures usually greater than 180 ºC results in a product with some properties enhanced (dimensional stability, durability, aesthetical colour) and some diminished (mechanical properties). The loss of mechanical strength is recognized as a limitation to the use of ther...
S Duarte, D Jones, L Nunes
Long-time efficacy of some soil termiticides tested according to “Modified Ground Board Test”
2018 - IRG/WP 18-10935
Field trials of efficacy of soil termiticides available in Thailand were started back in the 1980s at four different locations representing different unique weather types of the country. The method used in the trials (Modified Ground Board Test) is the compulsory test for every soil termiticides aiming to be registered for termite control in Thailand. The ongoing record reveals that some particula...
C Vongkaluang, K Charoenkrung, N Same Rain
Preventivephysical barriers against subterranean termites species for building protection: How to implement innovative materials to reach efficacy requirements
2018 - IRG/WP 18-40845
As the European regulation dealing with the use of biocides (BPR) for preventive protection of buildings against subterranean termites is leading to more and more pressure on physico-chemical barriers currently used (PT18), some existing developments are focusing attention on physical biocides-free barriers. The main target is then to avoid the use of active ingredients, to stay out of the BPR sco...
N Delourme-Fonseca, P Poveda, F Simon
Preserved Wood in the Story of Sustainable Forestry
2018 - IRG/WP 18-50344
Sustainable forestry, at its simplest, is about growing trees. The full story, though, is much more complex. An important chapter of that story is the role that preserved wood plays in ensuring sustainability. Too often, this part of the sustainability story is rarely mentioned.
It is time for the preserved wood industry to deliver a unified message of our critical role in sustainability. By res...
D Brookes
Preservative Treatment of CLT: An Example at Shimojishima Airport
2019 - IRG/WP 19-30748
Cross laminated timber (CLT) is a relatively new construction method that allows multi-storey construction using solid wood instead of concrete or steel. It is a method favoured by progressive architects and recognized for its much lower environmental footprint. Wood is an excellent construction material and is a long-term carbon sink that also performs well in the event of earthquakes and fire....
J Lloyd, N Yamashita, A Taylor
Update on the Distribution of Termites and other Wood-boring Insects in Europe
2020 - IRG/WP 20-10960
In Europe, most of the timber used in construction is made from softwood species that are poorly or not durable against wood-boring organisms (beetles, termites, decay fungi). Timber with a moisture content of less than 20% can be attacked and degraded by different species of insect whose larvae consume wood and significantly reduce its mechanical strength. The risk of attack by wood-boring insect...
M Kutnik, I Paulmer, D Ansard, M Montibus, C Lucas
Macro biological degradation of wood treated with sorbitol and citric acid – first results from marine environment and termite exposure
2020 - IRG/WP 20-40901
Most European wood species are rapidly and severely degraded in termite-infested areas and the marine environment. There is a need for new solutions, especially in the marine environment, since we lack wood preservatives approved for marine applications in Europe. Several wood modification systems show high resistance against both marine borers and subterranean termites. However, the existing comm...
A Treu, L Nunes, E Larnøy
Mechanical and biological durability properties against soft-rot and subterranean termite in the field (grave-yard test) of beech wood impregnated with different derivatives of glycerol or polyglycerol and maleic anhydride followed by thermal modification in an opened or in a closed system
2021 - IRG/WP 21-40917
This paper presents mechanical and biological durability properties in soil beg test (soft-rot test) and field test (grave-yard test) against subterranean termite of the wood modified with an aqueous vinylic derivative of glycerol/polyglycerol or maleic anhydride cured in an opened or in a closed system. Wood modification was performed through impregnation of European beech (Fagus sylvatica) with ...
M Mubarok, H Militz, S Dumarcay, I W Darmawan, Y S Hadi, P Gerardin
Assessing the Performance of Wood-based Materials Exposed to Termite Risk – A New Experimental Approach
2022 - IRG/WP 22-10989
Termites are able to degrade a large number of building materials including wood, wood-based panels, biobased insulation, and polymers. The risk for a material of being degraded by termites depends on its composition, on its accessibility, and also on the behavior and the biology of the termite species considered. Within the EU project Click Design, we investigated the durability, under laboratory...
M Kutnik, I Paulmier, C Brunet, D Ansard, M Montibus
Phenol formaldehyde modification and termite resistance under laboratory testing
2022 - IRG/WP 22-40952
The development of phenol formaldehyde (PF) resins as a means of impregnating solid wood is one that has been explored for several decades, both in terms of conventional impregnation processing (Impreg) or compressional impregnation (Compreg). However, it is only recently with advances in processing conditions that the method truly affords a means of achieving conventional modification for solid t...
L Nunes, A Pitman, M Duarte, B Stefanowski, D Jones
Envelope wood protection against subterranean termites under H2-hazard class tropical environment by a new generation wood preservative with vegetal extracts-cypermethrin mixtures
2023 - IRG/WP 23-30795
Wood protection industries in progressive economies globally are compelled to develop cost-effective, environmentally acceptable wood treatment solutions for long term carbon storage in wood materials/products while appealing to consumer demands for low environmental impact treated wood. A new generation wood preservative, based in part on 2% vegetal extracts and 0.16% cypermethrin components, has...
D Messaoudi, A H H Wong
A mini review on climate change impact on bio-ecology of subterranean termites
2023 - IRG/WP 23-50375
Climate change is creating possibilities of changes in the bio-ecology of termites across the globe. This change will be felt differently in different regions. While changes in swarming times will be common in the Northern hemisphere, the tropic will encounter more life-history related changes. But termites posing newer threats induced by climate change will be mostly dependent on human activitie...
P Dhang
Laboratory evaluation of PA1b, an insecticidal protein extracted from pea seeds (Pisum sativum), as bait active ingredient against the subterranean termite Coptotermes gestroi (Blattodea: Rhinotermitidae) in tropical zones
2024 - IRG/WP 24-11038
Coptotermes gestroi (Wassman 1896) is one of the worst pests in tropic areas, economically. Two types of curative methods are used since decades to eliminate colonies that attack constructions: injection of biocidal treatment solutions on wood, walls and soil, and population control using baits. In application of the current regulations, the first technique can no longer be used in Europe, to lim...
J Vuillemin, D Messaoudi, P da Silva
Laboratory and field evaluations of bio-based termiticide containing Arnica extract from Berkem Biosolutions® against native and Formosan subterranean termites
2024 - IRG/WP 24-11049
Arnica extract from Berkem Biosolutions® is a 100% plant-based ingredient, rich in active molecules, particularly polyphenols, specially adapted to the needs and challenges of termite protection. The efficacy performance of a bio-based termiticide product containing Arnica extract from Berkem Biosolutions® had been evaluated both in soil treatment and in wood protection treatment against native ...
D Messaoudi, J Curole, Q Wu
Barriers of polyglycol/borate treated wood prevent termite attack to untreated wood above them in 10-year field tests
2024 - IRG/WP 24-20709
As a pioneer in wood protection and borate research Terry Amburgey, a lifetime member of the IRG, had many projects where borates were used in subsequently commercially very successful applications. This paper is one of the initial research projects that lead to polyglycol borates being used as a standalone treatment to protect against termites in new homes which has now been well proven over the ...
K W Ragon, J D Lloyd, T L Amburgey
Danish wood preservatives approval system with special focus on assessment of the environmental risks associated with industrial wood preservatives
2001 - IRG/WP 01-50166-01
The following is a description of the procedure used by the Danish Environmental Protection Agency to assess the environmental risks associated with preservatives used in the pressure impregnation of wood. The risk assessment covers issues considered to be of significance for the environment and which are adequately documented so as to allow an assessment. Such issues are persistence and mobility ...
J Larsen
Data sheet on wood-boring insects. Apate monachus Fabricius. 2. Position systématique, nomenclature, identification et distribution - Espèces végétales attaquée
1981 - IRG/WP 1105
R L A Damoiseau
Solvent drying and preservation of timber
1977 - IRG/WP 381
Processes which combine drying and preservation are first reviewed. Some preliminary experiments are then described in which blocks of green Sitka spruce sapwood were immersed, in a solution of tributyltin oxide (TBTO) in methanol at 60°C. Satisfactory penetration of the preservative and exchange of methanol and water occurred in a few hours. The methanol was removed rapidly from the wood by evap...
J A Petty