Your search resulted in 171 documents. Displaying 25 entries per page.
Decay evaluation of the effectiveness of a LOSP envelope treatment in eucalypt and meranti heartwoods for window joinery
1996 - IRG/WP 96-30099
The effectiveness and penetration in heartwood boards of an LOSP formulation containing TBTN was examined by determining decay resistance to the white-rot fungus Perenniporia tephropora. Boards, one metre long, of Eucalyptus regnans, Eucalyptus delegatensis, Eucalyptus obliqua and Eucalyptus sieberi were treated, along with boards of 'light' and 'dark' meranti. ...
L J Cookson, A Trajstman
A study on the effectiveness of didecyldimethylammonium chloride to protect wood from attack by termites
1993 - IRG/WP 93-30009
A laboratory bioassay was conducted on the ability of didecyldimethylammonium chloride (DDAC) to protect Pinus radiata D.Don wood specimens from attack by two of Australia's most economically important species of subterranean termite, Mastotermes darwiniensis Froggatt and Coptotermes acinaciformis (Froggatt). Sapwood specimens of Pinus radiata, treated to achieve nominal retentions of 0.5...
J W Creffield
The preventive effectiveness of preservative treatments against wood-rotting fungi. Preliminary results
1992 - IRG/WP 92-2407
The efficacy of a range of preservative treatments in preventing colonisation by decay fungi has been assessed using a method developed at BRE and similar to that adopted by Working Group 9 of European Standards Committee CEN/TC 38. Assessment was made using baits inserted into the test blocks, in holes which had been drilled after treatment to within defined distances of the treated face exposed ...
J K Carey
IRG/COIPM INTERNATIONAL MARINE TEST - to determine the effect of timber substrate on the effectiveness of water-borne salt preservatives in sea-water. Progress Report 11: Report of fourth inspection (3 years) in Italy
1981 - IRG/WP 471
The wood samples of Alstonia scholaris, Fagus sylvatica, Pinus sylvestris were submerged in the sea at Follonica, Italy, in Apri1 1977. Follonica, latitude 42°55' North and longitude 10°45' East, is situated on the Tyrrhenian coast. The recorded temperature varies from 13°C td 25°C, salinity 37- 38%. and pH about 8. The inspections were carried out after 6 months (10/1977), 1...
A Gambetta, E Orlandi
IRG/COIPM INTERNATIONAL MARINE TEST - to determine the effect of timber substrate on the effectiveness of water-borne salt preservatives in sea-water. Progress Report 22: Report on the conditions of specimens at Sekondi, Ghana after 60 months
1986 - IRG/WP 4123
The results of the third inspection of CCA and CCB treated test panels exposed at Sekondi, Ghana in June 1980 are presented. None of the panels still in test, i.e. panels of Pinus sylvestris treated with CCA at 3 and 10%, Alstonia scholaris treated with CCA at 10%, Fagus sylvatica treated with CCA at 10%, and Erythrophleum ivorense and Mitragyna stipulosa both treated with CCB at 10%, shows any ex...
F F K Ampong, N Asare-Nyadu
Laboratory method for testing the effectiveness of soil termiticides
1992 - IRG/WP 92-1561
In France, the protection of buildings against termites is based on a chemical treatment of wood, soil and walls. Because of the withdrawal of aldrin from the market, the need of new soil termiticides has appeared. Therefore, a laboratory method derived from Cymorek's method has been developped to assess their effectiveness. Some points are developed like the type of soil, the number of t...
M-M Serment, A-M Pruvost
Japanese standardized method for evaluating effectiveness of anti-sapstain and anti-mould chemicals
1988 - IRG/WP 2299
Japan Wood Preserving Association established a method for testing effectiveness of chemicals against sapstain and mold fungi on wood in 1979. The method is concerned with a laboratory technique using small timber specimens (20 x 50 x 3 mm³), petri dish and 5 test fungi. Effectiveness of each candidate chemical is evaluated on the basis of the relative resistance to sapstain and mold fungi which ...
K Tsunoda, K Nishimoto
"Refractory" is a relative term. Incised alpine fir is treatable
1991 - IRG/WP 3670
While certain wood species carry a reputation for being 'treatable' this normally refers to the sapwood. For most Canadian species, heartwood penetration is the major determinant of whether treatment meets Canadian, USA and Japanese standards and in this respect alpine fir turns out to be a treatable species. Alpine fir is the fir component of the Western Canadian spruce-pine-fir...
P I Morris
Deltamethrin effectiveness against subterranean termite attack on wood under natural conditions
1989 - IRG/WP 1407
On fighting subterranean termites on wood, out of ground contact, the synthetic pyrethroid Deltamethrin shows positive aspects such as its efficiency and low mammalian toxicity. To evaluate its performance in conditions very similar to those in service use, specimens of Pinus sp were treated with solutions of Deltamethrin diluted in "white spirits" at 0.005% (w/w) and 0.01% (w/w) and exposed in a ...
P A Zanotto
Evaluation of the effectiveness of Tuff Brite C in the control of sapstain in laboratory and field tests
1992 - IRG/WP 92-3718
Since 1990, the anti-sapstain product Tuff Brite C (ASC 66898) has been evaluated internationally in laboratory and field tests, and has been commercially introduced in New Zealand. The product is an aqueous flowable formulation of chlorothalonil and carbendazim. Efficacy tests which have been carried out in New Zealand, Australia, USA, South Africa and Europe are described and summarized. Tuff Br...
T L Woods, C J Klaver
Studies on the fungicidal effectiveness of a petroleum derived product as a creosote alternative
1986 - IRG/WP 3384 E
This work, appears first because of the necessity to find out a profitable use for a residual product of the petrol pyrolisis, and second, because the lack of high natural durability wood used until now-a-days to build posts and sleepers in creosote lacking countries. Our main objective was pointed to the characterization of this new product and to find out the effectiveness against the wood-destr...
A M Navarrete, M T De Troya
Shorter-term biological control of wood decay in pre-seasoning pine roundwood as an alternative to chemical methods
1992 - IRG/WP 92-1555
Previous studies on the long-term control of decay in creosoted transmission poles, using Trichoderma and other antagonistic moulds, have met with limited success. However, it is possible biological control is more suited to control of decay on shorter time scales. An earlier study, focusing on pre-seasoning treatment of transmission poles showed that favourable porosity increases could be brought...
M W Schoeman, D J Dickinson
Effectiveness of wood preservatives and treatments against marine borers in Philippine waters
1976 - IRG/WP 416
A 5-year exposure test was conducted on the effectiveness of wood preservatives and treatments against marine borers in Philippine waters. Air-dried heartwood samples of apitong (Dipterocarpus grandiflorus) 76.2 x 88.9 x 609.6 mm³ (3 x 3.5 x 24 in³) in size were pressure treated with coal tar creosote and two types of CCA (copper/chrome/arsenic) and CuCZA (copperized chromated zinc arsenate) wat...
F R Siriban, M G Laxamana, P G Mata
IRG/COIPM INTERNATIONAL MARINE TEST - to determine the effect of timber substrate on the effectiveness of water-borne salt preservatives in sea-water. Progress Report 17: Report of fifth inspection (4 years) in Italy
1983 - IRG/WP 4103
The wood samples of Alstonia scholaris, Fagus sylvatica, Pinus sylvestris were submerged in the sea at Follonica, Italy, in April 1977. Follonica, latitude 42°55' North and longitude 10°45' East, is situated on the Tyrrhenian coast. The recorded temperature varies from 13°C to 25°C, salinity 37-38% and pH about 8. The inspections were carried out after 6 months (10/1977), 12 ...
A Gambetta, E Orlandi
Efficacy of some fungicides against mold on freshly cut beech sawn wood
2006 - IRG/WP 06-30403
The quality class of molded wood is lowered and this can result in financial losses due a decrease in its trade value. Currently beech wood is often used without steaming it first and it moulds in the course of drying. The aim of this study was to identify kinetics of beech wood molding and effectiveness of action of chosen modern pro-ecological wood preservatives applied in the protection of fres...
A Fojutowski, A Kropacz
Comparison of laboratory termite test methods
2007 - IRG/WP 07-20365
Seven standardized laboratory tests with termites were evaluated. The bioassays were made in accordance with EN 117, SAA32 E08, SAA32 E09, Ebw 02, the American Wood-Preservers’ Association (AWPA) Standard E1-97, the Japan Wood Preserving Association (JWPA) Standard 11 (1) and The Protocols for Assessment of Wood Preservatives. Two different wood preservatives each in three concentrations and add...
H-U Kruschinski, W Unger, A F Preston
Effectiveness of MOQ® OX 50 (CCB-Oxide) wood preservative – Part 2: Field tests
2008 - IRG/WP 08-30483
MOQ® OX 50 is a chromated copper borate preservative known around the world as CCB. In Brazil, this product is the only CCB-oxide type preservative with fungicide and insecticide properties registered at the Brazilian Institute for the Environment and Renewable Resources (IBAMA) that complies with the requirements of the Brazilian and European markets for preserved wood. For over five decades, s...
A Gandolfi Jr, C Salvela, D R Macedo, J M Vidal
Antinomic natural self-protection mechanism in long-lasting woods: a case study with three tropical species from French Guiana
2009 - IRG/WP 09-10696
We demonstrate in this work through 3 examples that Amazonian trees may specialize long-lasting woods by means of at least to different approaches. Wallaba impregnates its wood with large amounts of weakly antifungal compounds acting in synergy, while tatajuba and louro vermelho woods are naturally impregnated with antifungal agents. Comparison of biological activities in vitro and concentrations ...
A Rodrigues, M Royer, N Amusant, J Beauchêne, G Herbette, V Eparvier, A Thibaut, L Salmen Espíndola, B Thibaut, D Stien
Effectiveness of sol-gel treatments coupled with copper and boron against subterranean termites
2009 - IRG/WP 09-30493
Wood modification by sol-gel treatments shows many positive features, like antimicrobial properties. Wood was also successfully modified with alkoxysilanes enhancing its resistance against soil micro-organisms. Silver, copper, zinc compounds, boric acid or organic biocides such as alkylammonium compounds may be added to the sol-gel to enhance its biocidal properties. Nevertheless, if some of these...
E Feci, L Nunes, S Palanti, S Duarte, G Predieri, F Vignali
Colour change monitoring of photodegradation in Scots pine (Pinus sylvestris) – a short term focus
2009 - IRG/WP 09-40442
Colour change monitoring of photodegradation is a quick and easy method for monitoring rates of photodegradation in timber. A study was undertaken to compare this technique to other monitoring methods, including microtensile strength changes and weight loss. Colour changes due to accelerated sunlight exposure were monitored using a Datacolor check spectrophotometer and compared with a set of contr...
V Sharratt, C A S Hill, D P R Kint
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
TMT–Interlab–Test to establish suitable quality control techniques - Structure and first results
2010 - IRG/WP 10-40503
As a result of growing quality demands from manufacturers and end-consumers of thermally modified timber (TMT) recent scientific research activities are increasingly focussed on modification mechanisms and by this on the development of suitable quality control methods. To deepen the knowledge in modification mechanisms and to obtain a larger variety of scientific data for TMT depending on the trea...
C R Welzbacher
Climate change and wood protection, increasing demand of long life wood products and decreasing production of treated wood
2010 - IRG/WP 10-50269
Several new topics related to wood protection sector has appeared in Japan, as the awareness of climate change becomes bigger and bigger. The “Basic act for housing (2006)” and the “Long-life housing promotion act (2009)” were enforced to form a safe and high quality housing stock and to form a long-service-life housing respectively. Despite of the favorable background for wood protection ...
K Yamamoto, H Kato
The effects of acetylation level on the growth of Postia placenta
2011 - IRG/WP 11-10751
To understand the defence mechanisms utilized by decay fungi when exposed to different wood protection systems the study of gene expression can give us some answers. When the DNA sequences are known, primers can be designed to detect transcripts of genes with gene products related to basic cellular processes and hyphal growth. The characteristic gene products induced in different fungi by differen...
A Pilgård, G Alfredsen, C G Fossdal, C J Long II
Effectiveness of Water Based Bentonite-Borate Slurry for In-situ Remedial Protection of Historic Wooden Piles: The Eurobor Protocol, Part 2
2011 - IRG/WP 11-30574
The study of the biocide product Eurobor®, water mixture of boric acid, borax and sodium bentonite, aimed to verify previous findings regarding borates penetration from a clay-water mixture of foundation timber. The product was applied on samples from 100 year old timber foundation from the city of Göteborg. Although in ground for this long the timber was in acceptable god condition due to groun...
M. Theorin, K. Fimmerstad, K-M. Bandh