Your search resulted in 809 documents. Displaying 25 entries per page.
Field tests with Antiblue and Biocide TT for the prevention of sapstain and mould fungi on Pinus elliottii timber
1992 - IRG/WP 92-3682
Freshly cut and sawn Pinus elliottii timber was dipped in four concentrations of Antiblue (active ingredient sodium pentachlorophenate) and Biucide TT (local substitute), at four immersion times and stacked in the open at Chisengu sawmill. Five weeks later, the timber was assessed for the incidence and intensity of stain and mould. The results showed that Antiblue was the better chemical providing...
A J Masuka
Some studies on fungal deterioration of rubber wood (Hevea brasiliensis)
1980 - IRG/WP 2140
For the sreening of anti-stain chemicals trials with selected agricultural fungicides and new chemicals were carried out. Botryodiplodia theobromae, Aspergillus sp. and Penicillium sp. were used at test organisms. For testing the durability of rubber wood (Hevea brasiliensis) suitable local rotting fungi (Basidiomycetes), based on high degrading power, which may later be employed in standard tests...
A Sujan, A G Tan, M Stevens
Detoxification of methylene bisthiocyanate by bacteria isolated from freshly felled, anti-sapstain treated timber
1993 - IRG/WP 93-10017
The microbial defacement of freshly-felled timber treated with organic biocides continues to be a major problem in stored lumber. As part of a study to investigate the depletion in chemical activity of methylene-bis-thiocyanate (MBT) in green timber, bacteria were isolated from freshly-felled boards of Corsican pine (Pinus nigra var. maritima Arnold) previously treated with different biocides. The...
R J Wallace, R A Eaton, G R Williams
Field Trials with mini-stakes
2002 - IRG/WP 02-20244
In 1995 an extensive field test program with wood mini-stakes, 8 x 20 x 200 mm, was started. In these trials a large number of parameters are being evaluated, including several new wood preservatives, differently chemically modified woods and natural durability of various wood species. The test sites are three fields in Sweden for in-ground and “close to ground” testing, one subterranean termi...
M Westin, A O Rapp, Y S Hadi, T Nilsson
Variable tolerance of Ophiostoma spp. and Diplodia pinea to commercial antisapstain products
1998 - IRG/WP 98-10266
A recent survey of the occurrence of sapstain fungi in New Zealand, conducted at The University of Waikato, provided the opportunity to examine fungicidal tolerance amongst new isolates. It also enabled a comparison of tolerance amongst new isolates with those used in routine antisapstain screening trials at Forest Research.
A rapid antisapstain laboratory disc trial was used to determine the ext...
D R Eden, C M Chittenden, B Kreber, J G Van der Waals, R N Wakeling, R L Farrell, T Harrington
A report on the development of "Technical Recommendations Document for the Canadian wood preservation and protection facilities"
1987 - IRG/WP 3447
The wood preservation and wood protection industry uses chemicals which are similar. However, because the methods of applications of preservatives are different in wood preservation (pressure treatment) and wood protection (surface treatment) plants, their problems need to be resolved separately. As a part of a federal strategy to protect the environment and human health from potentially toxic com...
G Das, V N P Mathur
Comparison of two laboratory methods for screening potential anti-sapstain chemicals
1993 - IRG/WP 93-10036
Two methods were used to screen a number of potential anti-sapstain chemicals in the laboratory. In one method miniature boards of freshly felled Scots pine sapwood were dip treated with the candidate chemical, sprayed with a suspension of stainers or moulds and incubated for five weeks. In the other method antibiotic assay discs were treated with precise quantities of chemical, plated out on malt...
S M Gray, D J Dickinson
Commercial antisapstain chemicals in New Zealand
1980 - IRG/WP 3142
Almost all sawn timber of exotic softwoods (principally Pinus radiata) and a large proportion of indigenous sawn timber receives an antisapstain chemical treatment to prevent fungal degrade during subsequent seasoning, storage, or transportation (if exported). Antisapstain chemicals are also widely used to protect freshly peeled round produce during drying. A further, specialised, use is as the fu...
J A Butcher
Report on the efficacy and performance of the insecticide candidate termiticide in H2 field trials
2004 - IRG/WP 04-10516
This paper explains the field results of phenol pyrazole treated timber against in an above ground mound colonies of Coptotermes acinaciformis (Froggatt). C. acinaciformis (‘termites’) are the major pest of human structures throughout tropical and sub tropical regions, causing billions of dollars in damage to timber-in-service worldwide. The result of this field test have shown that candidate ...
B M Ahmed, P Vinden, J Hann, J R J French
A report of the Technical Recommendations documents for the Canadian Wood Protection and Preservation Facilities and an environmental study of storm water runoff from anti-sapstain treatment plants
1988 - IRG/WP 3478
With the completion of the Final draft of the Technical Recommendations (TR) documents for the Wood Preservation and Wood Protection Industry, there are naturally questions on what is expected from these documents and how Environment Canada and Provincial regulatory agencies may interact with the wood preservation industry. In general, it is expected that the Canadian Wood Preservation and Protect...
G Das, V N P Mathur
Migration of chlorothalonil and carbendazim in fruits stored in wood treated with the anti-sapstain formulation Tuff Brite C
1997 - IRG/WP 97-50097
Fruits and vegetables stored in treated wood boxes are in contact with the products used for the treatment. In order to obtain regulatory approval for incidental food contact it is necessary to determine the quantity of residues on these fruits or vegetables. When the active materials are used in agriculture it is required that residues found are below to the MRL fixed for these substances. In the...
J F Cooper, D Riboul, M De Vleeschauwer, T L Woods
An appraisal of anti-sapstain chemicals in Queensland, Australia
1985 - IRG/WP 3331
Eleven formulations were tested in the field for effectiveness against sapstain, mould and fungi on Pinus elliottii in Queensland. The commercially used sodium pentachlorophenoxide (0.5% a.i.) and Captafol (0.2% a.i.) performed well. Busan 1009 (0.3% a.i.), Protek T (5.0% a.i.), Woodgard E.S. and E.C. (0.8% a.i.), together with sodium tetrachlorophenoxide (0.5% a.i.) offer potential as anti-sapsta...
L E Leightley
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
Accelerated anti-termite laboratory tests, simulation of field conditions and assessment of results for service life
1994 - IRG/WP 94-20034
Termites are one of the most serious biodegrading agents in the tropics. Though some species of termites occur in the warmer temperate regions, only a few species can withstand the rigours of colder regions. Testing of termite resistance of material is done either by field tests or by accelerated laboratory tests. Field tests, though realistic to assess service life, are elaborate, take a long tim...
P K Sen-Sarma
Field evaluation of alternative antisapstain chemicals
1982 - IRG/WP 3198
Seven alternative antisapstain formulations containing four different active ingredients were field tested during the summer and fall of 1981. The test was designed to evaluate the potential long term effectiveness of PQ-8 (Chapman Chemical Co.) containing copper-8-quinolinolate, Busan 30 (Buckman Laboratories) containing 2-(thiocyanomethylthio)benzothiazole, BL2398 (Buckman Laboratories) containi...
D V Plackett
International standardisation: a hypothetical case study with stand-alone borate wood preservatives
1998 - IRG/WP 98-20147
The possibility of developing wood preservation standards with a global remit has a number of obvious advantages as well as far reaching ramifications, many of which are undefined as yet. The commercial implications of adopting international standards are clearly considerable, but equally, such a development is likely to focus attention on the conceptual differences in the way that different regio...
M W Schoeman, J D Lloyd
Performance of proprietary formulations of anti-sapstain preservatives on Hevea brasiliensis timbers in laboratory tests
1989 - IRG/WP 3532
A total of 10 proprietary and two experimental formulations were assessed for their effectiveness against sap-stain caused by Botryodiplodia theobromae on Rubberwood (Hevea brasiliensis). Sterilized wood samples 5x20x40 mm³ were dipped in the test chemicals for 60 seconds and then inoculated with 0.5 ml of culture filtrate of Botryodiplodia theobromae for incubation in sterile, damp petri dishes....
L T Hong
Laboratory evaluation of water repellents as antisapstain treatment additives
1986 - IRG/WP 3382
Water repellent formulations consisting of five paraffin wax emulsions, three polyethylene wax emulsions, two polybutadiene resin emulsions, a polyester emulsion, and a ß-pinene polymer emulsion were subjected to water repellency tests on radiata pine sapwood. With one exception, the parafin wax emulsions were more effective water repellents than the alternative formulations and one of the paraff...
D V Plackett, C M Chittenden
Three-year field trials of polymeric formulations which provide a new basis for the invention and design of non-toxic wide-spectrum wood preservatives
1994 - IRG/WP 94-40029
Three types of non-toxic polymeric formulations invented using a new approach to wood preservation were challenged with termites and fungi in three-year ground-contact field trials in the sub-tropical climate of Natal. These formulations were copper soaps of carboxylic acid groups of unsaturated fatty acids of waxes and edible vegetable oils; of resin acids of rosin, and, of synthetic unsaturated ...
A A W Baecker, A Pizzi
Feeding response of field populations of Coptotermes species to softwood blocks treated with non-toxic water-proofing and anti-microbial products.
2003 - IRG/WP 03-10487
The feeding response of field populations of the subterranean termite, Coptotermes lacteus, to Pinus radiata wood blocks (50 x 40 x40 mm) treated with various combinations of non-toxic and odourless water-proofing materials based on natural high molecular weight esters (TimberTreatÒ) and a new water insoluble quaternary ammonium compound (‘anti-microbial’) is described. Treated wood blocks we...
J R J French, T Pynsent, M Susic
Biological control of sapwood-inhabiting fungi by living bacterial cells of Streptomyces rimosus as a bioprotectant
1992 - IRG/WP 92-1564
The objective of this study is to evaluate the efficacy of antifungal activity of living bacterial cells for the protection of wood against sapwood-inhabiting fungi. The following sapwood-inhabiting fungi were selected: sapstain --Ceratocystis coerulescens, Ceratocystis minor, Ceratocystis pilifera, and Aureobasidum pullulans; mold fungi --Aspergillus niger, Penicillium spp, and Trichoderma spp. L...
S C Croan, T L Highley
Anti-sapstain chemicals for diffusion treatment of rubber wood
1986 - IRG/WP 3367
Performance of Sinesto B and Akzo EN 494, two formulated products of alkyl ammonium compounds, was tested as fungicidal additive in the boron solution to control mould and stain during diffusion storage of rubber wood. Sinesto B at 2.0% (a.i.) concentration has given good control over mould and its protection against sapstain was only satisfactory. Akzo EN 494 at 0.7% (a.i.) concentration has give...
R Gnanaharan
The risk assessment process. Point of view of a biocide manufacturer [Évaluation du risque. Point de vue d'un fabricant de biocide]
1990 - IRG/WP 3568
Risk assessment is an inherent part of our everyday lives. The risk assessment equation combines Hazards and Exposure. For the Wood Preservation Industry, the hazards may be characterised by the toxicity a the ecotoxicity of chemicals and the exposure by the identification of exposed people, of the exposure routes and exposure frequency. To quantify the exposure, good co-operation is required betw...
D Baur
Microbial ecology of treated Lap-joints exposed at Hilo, Hawaii for 24 months
1997 - IRG/WP 97-20107
This paper is a continuation of previous work reported in IRG/WP 96-20089 by Molnar et al. (1996) in which Lap-joints, made from Southern yellow pine and treated with ACQ, DDAC or propiconazole were sampled over 12 months exposure at Hilo, Hawaii. 18 and 24 month samplings have since taken place and are reported here. TnBTO treated Lap-joints made of scots pine which were exposed later as a standa...
S Molnar, D J Dickinson, R J Murphy
Methods of testing anti-stain chemicals for protecting sawn timber during storage and transport
1976 - IRG/WP 273
No international standard method for testing anti-stain chemicals for protecting fresh sawn timber exists. The methods used can be divided into three types: a) Rapid screening tests for finding chemicals effective against blue-stain and mould fungi. The chemicals are tested in agar medium, in pieces of filter paper or on small pieces of wood using pure cultures. b) Laboratory tests for evaluating ...
T Vihavainen