Your search resulted in 705 documents. Displaying 25 entries per page.
Performance of sintered glass screening as a potential physical barrier against subterranean termites in the laboratory and after 4 years of field test
2008 - IRG/WP 08-10646
This paper describes the performance of sintered glass screenings as a potential physical barrier against the subterranean termites, Coptotermes acinaciformis and Mastotermes darwiniensis in the laboratory and after four years of field testing in active above-ground mound colonies of Coptotermes lacteus.
The laboratory results suggest that sintered glass is a viable control option against Copto...
J R J French, B M Ahmed (Shiday)
Variation of commercial timbers from Turkey in resistance to marine borers as assessed by marine trial and laboratory screening
2008 - IRG/WP 08-10668
Commercial timbers from Turkey used in coastal construction and boat building were tested for their resistance to marine wood-boring invertebrates in a marine trial and in a laboratory screening test. The timbers tested were beech (Fagus orientalis), oak (Quercus petraea), chestnut (Castanea sativa) and Scots pine (Pinus sylvestris). The marine trial was conducted over a period of 5 months at Mers...
H Sivrikaya, S M Cragg, L M S Borges
Validity of above ground testing according to ENV 12037
2008 - IRG/WP 08-20379
The standard ENV 12037 for testing of treated and untreated wood (lap-joint) exposed above ground
was issued in 1996 by The European Committee for Standardization. A draft for the development of the standard was presented by CEN-TC 38/WG 25/DOC N 076 in 2002. For a test to become valid the median rating of decay for untreated control replicates (Scots pine sapwood) must be equal or greater than ...
Ö Bergman, U Råberg, N Terziev
Development of a Weatherometer to Accelerate the Surface Checking of Wood
2008 - IRG/WP 08-20388
There is significant interest in developing preservatives that are better at preventing wood from checking. Currently, however, there is no accepted test methodology for accelerating the development of checks in wood samples so information on the effectiveness of treatments at restricting checking can be obtained more quickly. This paper describes the development of a new type of weatherometer (Ac...
R Ratu, P D Evans
Laboratory evaluation of four benzoylphenylureas against two species of Reticulitermes Holmgren, 1913 (Isoptera: Rhinotermitidae) from Southwest Europe
2008 - IRG/WP 08-30472
The use of benzoylphenylureas in baits for the control of termite pest is currently increasing. The chemical compounds used have been tested mainly with American termites. The effectivity against non-American termite species must be analyzed because the worldwide use of those compounds. In this paper four benzoylphenylureas (hexaflumuron, diflubenzuron, triflumuron and noviflumuron) have been test...
M Gaju-Ricart, M Urbano-Luque, R Molero-Baltanás, C Patiño-Martínez, C Bach de Roca
Laboratory Evaluation of Flurox, a Chitin Synthesis Inhibitor, as a Bait Toxicant Against Microcerotermes diversus (Silvestri ) (Isoptera: Termitidae)
2008 - IRG/WP 08-30477
Microcerotermes diversus (Silvestri) is the most economically destructive termite in structures in southwest, Iran . One sustainable control strategy that usually help in reducing the subterranean termite damage in buildings , which is safe to the user and the environment is the use of IGRs in a suitable bait matrix. In the laboratory assays described here, the delayed toxicity of Flurox (a Chitin...
B Habibpour
Measurement of wood decay by dynamic MOE in an accelerated soil contact test
2008 - IRG/WP 08-20390
Current laboratory and field testing of preservatives involves various techniques to determine the extent of fungal attack, including visual inspection, mass loss, and static bending and compression strength measurements. The objective of this study was to compare decay measurement by conventional compression strength versus dynamic MOE, employing small wood stakes in an accelerated laboratory so...
Gan Li, D D Nicholas, T P Schultz
Above Ground Field Testing – Influence of test method and location on the relative performance of various preservative systems
2008 - IRG/WP 08-20393
Standardized above ground tests such as the lap-joint or test deck methods can be very slow in producing useful information on the relative performance of wood preservative systems. It often requires many years for decay to develop in wood treated to sub-optimal concentrations of standardized preservatives, making relative comparisons of performance between new systems and established preservativ...
A Zahora
Field testing in Colombia: Three years of evaluations and experiences
2008 - IRG/WP 08-20394
Two field test sites have been established in Colombia for the evaluation of fungal and termite resistance of treated wood. The combination of elevated temperature, high and stable humidity and high rainfall at the two test sites accelerates microbial and insect activity (Scheffer, 1971; Thornton et al, 1994; Freitag et al, 1995). Tests established include above ground termite tests, ground contac...
Y Cabrera, A Preston
Biological Performance of micronized copper wood preservative formulations in field and laboratory tests
2008 - IRG/WP 08-30488
Micronized Copper wood preservative formulations with different co-biocides were exposed to brown rot fungi in an 8-week AWPA E10 soil block decay test and two AWPA E7 ground-contact decay tests in Hawaii. The micronized copper formulations performed well against decay at or above the AWPA UC3 and UC4 retentions stipulated by the ICC-ES. Micronized copper preservatives performed comparably to a ...
G M Larkin, J Zhang, D L Richter, R J Ziobro, P E Laks
Laboratory Studies on Copper Availability in Wood Treated with Soluble Amine Copper and Micronized Copper Systems
2008 - IRG/WP 08-30489
A laboratory method has been employed to investigate the level of soluble copper in wood treated with various copper-based preservative systems, such as micronized copper (particulate copper) and amine copper solutions. This report describes the methodology and preliminary results on determination of the soluble copper in the treating solutions and the treated wood by these systems, as well as th...
L Jin, P Walcheski, A Preston
Laboratory and field exposures of FRT plywood: Part 1. Physical test data
2008 - IRG/WP 08-40426
Our understanding of the laboratory induced degradation with fire retardant systems is currently limited since we are unable to correlate laboratory steady-state experiments with actual in-service field degradation. Current model studies have generally been limited to isothermal rate studies with selected model FR chemicals. Other factors also play a major role in the degradation of FR-treated woo...
H M Barnes, J E Winandy, C R McIntyre
Impact of decay and blue stain causing fungi on the structural integrity of wood
2009 - IRG/WP 09-10699
The potential influence of diverse decay patterns caused by different brown rot provoking basidiomycetes on the structural integrity of wood was investigated. Additionally the potential impact of blue stain on the structural integrity was examined. Therefore decayed Norway spruce (Picea abies Karst.) specimens representing a wide range of mass loss, caused by four different brown-rot fungi and one...
C Brischke, C Welzbacher, T Huckfeldt, F Schuh
Effects of cold treatment on wood destroying fungi important in cultural heritage
2009 - IRG/WP 09-10706
The dry rot fungus Serpula lacrymans (Wulfen:Fr.) Schroeter is notorious in building environments for its vitality, destructive potential, and the huge costs associated with remediation of damage caused to wood of cultural heritage. Due to the potentially adverse of effects of chemical treatment methods such as have been attempted in the past, more benign physical methods of treatment, e.g. heat t...
M Lüdicke, W Unger, G Binker
Accelerated H3 above-ground decay trials in Australia
2009 - IRG/WP 09-20411
An above-ground H3 fungal field trial was installed at five sites (3 in Australia, 2 in New Zealand), with the aim of finding a method that would shorten the time required for evaluating new preservatives and protection systems. One-quarter of the H3 preservative retentions were mostly installed, as first results suitable for registration occur when these reach 70% soundness. Chemical analysis of ...
L J Cookson, J Carr
Evaluation of Water Repellency of Treated Wood Using Several Alternative Methods
2009 - IRG/WP 09-20419
In this study, the results of water repellency testing using a digital swellometer method for water-borne organic-preservative systems with water repellent additives are reported. The findings suggest that the traditional method of using matched untreated controls as a reference developed from historic solvent-based treatments for determination anti-swelling efficacy (ASE) may underestimate the a...
L Jin, A F Preston
Laboratory study on the termiticidal efficacy of Eremophilone oil
2009 - IRG/WP 09-30497
A novel timber preservative formulation, Termilone® TT, is being developed by BioProspect Limited. This environmentally friendly preservative formulation incorporates Eremophilone oil, extracted from Eremophila mitchellii, as the active ingredient. Chemical analysis performed on Pinus radiata sapwood specimens treated with the Termilone® TT formulation revealed that the Eremophilone oil is relat...
D K Scown, J W Creffield, R Spooner-Hart
Laboratory and field evaluation of Laminated Strand Lumber treated with Borogard® ZB against termites
2009 - IRG/WP 09-30498
A laboratory bioassay and subsequent field trial was undertaken to determine the termiticidal effectiveness of a Laminated Strand Lumber (LSL) composite when treated with Borogard® ZB. The bioassay and field trial were conducted against two of Australia’s most economically important species of termite, Mastotermes darwiniensis and Coptotermes acinaciformis. Against both species of termite, LSL ...
D K Scown and J W Creffield
Laboratory test of some formulations against stain and mould fungi isolated from bamboo wood
2009 - IRG/WP 09-30508
To screen the effective anti-mould formulations, fungicides such as carbendazim, tebuconazole, fludioxonil, difenoconazole, prochloraz, benomyl and 8-hydroxy-quinoline copper (copper oxine) were selected to conduct the laboratory test of fungicidal activity by method of inhibition zone against Botryodiplodia theobromae Pat., Fusarium sp., Alternaria tenuis Nees., Penicillium purpurogenum Stoll, Tr...
Xingxia Ma, Airui Sun, Mingliang Jiang, Daochun Qin
Laboratory and above ground exposure efficacy of silicon-boron treatments
2009 - IRG/WP 09-30510
The study deals with silicon compounds, namely tetraethoxysilane (TEOS), phenyltriethoxysilane (PhTES) and methyltriethoxysilane (MTES) at concentrations of 23, 16 and 10% in combination with 1.2-1.5% boric acid. The aim with the study was to combine the chemical approach with the necessary biological tests of the impregnated wood. The tested silicon-boron combinations ensured mass loss less than ...
N Terziev, D Panov, A Temiz, S Palanti, E Feci, G Daniel
Effectiveness of a superficial treatment of bifenthrin to protect softwood framing from damage by subterranean and drywood termites in Indonesia
2009 - IRG/WP 09-40443
Various experimental testing procedures were undertaken in Indonesia to determine the effectiveness of a superficial (envelope) treatment of bifenthrin to protect softwood framing from damage by two species of subterranean termite (Macrotermes gilvus and Coptotermes curvignathus) and one species of drywood termite (Cryptotermes cynocephalus). Lengths of framing (Pinus radiata sapwood) were commerc...
P Sukartana, J W Creffield, A Ismanto, N E Lelana
Environmental Emission of Wood Preservatives: Interpretation of Data Relevant to BPD Risk Assessments
2009 - IRG/WP 09-50259
The risk assessments for the use of wood preservatives proposed by the OECD and used under the Biocidal Products Directive (BPD) (98/8/EC) require the derivation of leaching rates for active substances. These rates are to be used as input data in to agreed exposure scenarios. The leaching rates can be derived from laboratory testing and from field testing. The relationship between laboratory and f...
D G Cantrell
Observations on colony collapse in Reticulitermes flavipes (Kollar) in laboratory and field settings in Wisconsin
2010 - IRG/WP 10-10709
Parallel strategies were designed to eliminate Reticulitermes flavipes (Kollar) from a field site in Endeavor, Wisconsin and a simulated field test setup of approximately 20,000 workers in the laboratory. Indoor and outdoor colonies of R. flavipes were baited with commercial cellulose monitoring stations and rolled cardboard stations. If the commercial cellulose baits were attacked, they were repl...
F Green III, R A Arango, G R Esenther
Glued laminated poles - Progress report after 30 years testing
2010 - IRG/WP 10-20427
In 1979 a number of glued laminated poles treated with CCA and creosote were placed in a greenhouse at Uppsala, at the Simlångsdalen test field in southern Sweden and in a power lane in Vuollerim in northern Sweden in order to study their resistance against biological degradation.
The tests have shown that the best performance will be obtained if each lamination is treated with a water-borne pre...
Ö Bergman, J Jermer
Third Party Quality Control and Laboratory Procedures in the United States
2010 - IRG/WP 10-20430
With over 5 billion treated board feet produced in the United States each year, there is a need for an established set of Quality Control and Laboratory procedures for independent agencies. These QC procedures ensure retailer and consumers that treated wood products have met conformance standards. These procedures provide treating facilities with guidelines on the production and service of treated...
C Barber, T Greer