Your search resulted in 314 documents. Displaying 25 entries per page.
Biological control of blue stain on wood with Pseudomonas cepacia 6253. Laboratory and field test
1989 - IRG/WP 1380
Pseudomonas cepacia strain 6253 was tested as a biological control agent on wood samples under laboratory conditions, as well as in the field. In the laboratory this bacterium controlled blue stain on Pinus radiata, but field test were not totally satisfactory. However, after 2 months of field test, the test samples were 1/3 to 1/2 less stained then the control samples....
R Benko
2nd IRGWP - Questionnaire on the state of pollution control in the field of wood preservation (Introductory letter)
1981 - IRG/WP 3184
H Willeitner
Bifenthrin, a new insecticide for the control of termites and wood-boring insects
1995 - IRG/WP 95-30076
Bifenthrin, a new insecticidal compound Bifenthrin has been extensively tested, to determine its potential use to control termites and other wood destroying insects. Bifenthrin is effective at extreme low rates which can minimize human and environmental exposure to the product. Results of tests carried out by several research institutes and by FMC in different countries will be presented. The phys...
G Rustenburg
Preliminary screening of diffusion formulations for the control of soft rot
1978 - IRG/WP 2104
We have an urgent need in Australia to develop in situ remedial treatments for the present population of in-service transmission poles. For various reasons we have opted for formulations which can be applied as bandage treatments and thus we are primarily concerned with assaying diffusable toxicants. Two basic approaches have been made: an assay of the formulation's toxicity; and a combin...
H Greaves
Generic code of good practices for wood protection facilities. Part 1: Wood protection (antisapstain) facilities
1993 - IRG/WP 93-50003
In general, the potential of high toxicity (aquatic and human) of wood protection (antisapstain) chemicals dictates the need to protect the environment and humans from its harmful effects. This document is a compendium of recommendations for the design and operating practices of wood protection facilities. The suggested recommendations focus on achieving the objectives of protecting the environmen...
G Das, V N P Mathur
Three dimensional computer representations of growth of microbial populations in wood
1984 - IRG/WP 1243
Creosoted distribution poles inoculated with either Lentinus lepideus, biological control organisms including Triochoderma or combinations of both were extensively sampled to monitor the spread of organisms. A computer program which enabled the results to be portrayed in a three dimensional graphic form was developed and is illustrated. Results showed that computer mapping of this type usefully en...
A Bruce, B King, C Bruce, G M Smith
Termite standards questionnaire survey - First Report
1988 - IRG/WP 1354
Information contained in replies received from IRG members responding to the termite standards questionnaire survey are summarised. Highlighted in the results of this first report are the major termite species in the various zoogeographical regions, their damage ranking to timber-in-service, the chemicals used in control methods, and the status of termite standards in the respondent countries....
J R J French, J P La Fage
Copper binding capacity of modified wood flour
1992 - IRG/WP 92-3709
Wood flour was modified by reaction with oxidising agents and CCA preservative. The copper chromium and arsenic were removed from the CCA treated wood flour by an acid leaching procedure. The modified wood flours were allowed to react with copper acetate solution and the level of copper fixation achieved was determined. The modified wood flours had greater affinity for copper ions present in solut...
N C Milowych, W B Banks, J A Cornfield
2nd IRGWP - Questionnaire on the state of pollution control in the field of wood preservation
1981 - IRG/WP 3185
H Willeitner
Eastern subterranean termite responses to three soil pesticides
1990 - IRG/WP 1432
In laboratory assays simulating field conditions, tunneling and mortality of Reticulitermes flavipes (Kollar) workers were evaluated in sand treated with aqueous solutions of formulated chlorpyrifos, isofenphos, and disodium octaborate tetrahydrate. Chlopyrifos and isofenphos were evaluated at concentrations of 500 and 1000 ppm (weight of active ingredient / weight of sand), and disodium octaborat...
J K Grace
Toxicity of etofenprox to the Formosan subterranean termite, Coptotermes formosanus
1994 - IRG/WP 94-30048
Etofenprox is an insecticide with exceptionally low mammalian toxicity. When applied topically to workers of the Formosan subterranean termite, Coptotermes formosanus Shiraki, the LD50 of etofenprox of 4.78 to 6.59 was in the same range as termiticides currently in use. Etofenprox was a relatively quick acting termiticide, with most mortality occurring within 24 hours. In both vertical and horizon...
M Tamashiro, J K Grace, R T Yamamoto
On the possibilities of the use of juvenile hormone analogues (JHAs) in termite control. (A preliminary note for information)
1983 - IRG/WP 1214
A T De Lelis
Studies on the infesting behaviour of the Formosan termite, Coptotermes formosanus Shiraki and its physical control
1983 - IRG/WP 1174
An outline of termite damage to buildings in Japanese National Railways, wood-infesting behavior, attacked traces in PVC-sheathed cables by termites, detection method of termites and the physical control method of the Formosan termite are given in the present paper....
K Yamano
Bacteria as possible organisms for biological control of blue stain
1988 - IRG/WP 1339
The article discusses the possibilities of biological control of blue stain. Besides using some antagonistic fungi, the possibility of using antagonistic bacteria, which offer still greater possibilities, should not be overlooked. Tests performed have shown that some bacteria from the genera Streptomyces and Pseudomonas have a strong antagonistic effect of blue stain....
R Benko
Developments in wood preservation
1978 - IRG/WP 3121
The purpose of this paper is to comment very briefly upon recent developments and trends in wood preservation so that members of this Working Group have a basic knowledge of activities in other countries. The last paper was prepared in September 1977 and the present paper refers to developments since that time....
B A Richardson
Remedial treatment of wood attacked by insects
1981 - IRG/WP 3175
A review is presented of remedial treatments against wood-boring insects in wood in service. Preconditions and fundamental principles of insect control are compared with the control of fungal attack and reasons are given for the fact that remedial treatments against insects are more commonly applied than against fungi. With regard to insect control measures with a simultaneous preventive effective...
H Kühne
Modelling the control of decay in freshly felled pine poles
1997 - IRG/WP 97-10206
In a recent study investigating control of decay in freshly felled pine utility poles, it became apparent that the efficacy of different treatment methods was strongly related to the size of the material being treated. A topical application of 5% w/v disodium octaborate tetrahydrate (DOT), brush applied to the cut surfaces of logs with otherwise intact bark was just as effective at excluding white...
M W Schoeman, W Van der Werf, J F Webber, D J Dickinson
Effects of Trichoderma harzianum on enzyme activity and oxalic acid production of Gloeophyllum trabeum in ponderosa pine sapwood blocks
1992 - IRG/WP 92-1550
The effect of a bioprotectant, Trichoderma harzianum, on the activity of Gloeophyllum trabeum was investigated using a wood wafer sandwich method. Wood weight loss was greatest with Gloeophyllum trabeum exposed wafers, intermediate with those exposed to both the bioprotectant and decay fungus, and lowest with the bioprotectant exposed wafers. Extracts of wood wafers after 2, 4, or 6 weeks of funga...
C M Sexton, J J Morrell
Preliminary field and laboratory findings regarding the efficacy of a novel anti-marine wood borer agent
2000 - IRG/WP 00-10380
Blocks of sapwood of Pinus nigra were treated by vacuum impregnation with Biocide A to retentions of 0.5, 1 and 2 kg m-3. Similar blocks were vacuum-pressure impregnated with CCA to retentions of 2, 24 and 38kg m-3. The blocks were exposed subtidally in Mourilyan Harbour (Queensland, Australia). After 5 and 10 months exposure, blocks were removed, examined for superficial signs of attack by wood b...
A Praël, S M Cragg, R A Eaton
Evaluation of an alkyl ammonium compound as a fungicide to control sapstain and mould during diffusion storage
1984 - IRG/WP 3282
An alkyl ammonium compound ('Akzo' ES 255) was evaluated for its effectiveness against mould and sapstain during diffusion storage of boron-treated rubber wood. Though ES 255 at 1.0% concentration was effective against mould (71%) and sapstain (89%) it is less satisfactory compared to 0.5% sodium pentachlorophenoxide against mould (92%) and sapstain (98%)....
R Gnanaharan
Questionnaire on the state of pollution control in the field of wood preservation
1974 - IRG/WP 52
H Willeitner
Work programme of CEN/TC 38 (April 1999) and European publications
1999 - IRG/WP 99-20165
Scope of the CEN/TC38: Standardization of the characteristics of natural or conferred durability of wood and its derived materials against biological agents, including the characteristics of protection products and associated processes to obtain this durability. This applies in particular to: - the identification of hazard classes-, - the test methods (wood preservatives and treated wood and wood ...
R Hüe
Use of freeze disinfection for the control of the common furniture beetle Anobium punctatum
1992 - IRG/WP 92-1528
The common furniture beetle Anobium punctatum is an extremely widespread pest of wooden objects in Danish museums. In order to develop non-chemical methods of controlling the pests, experiments were conducted to elucidate the lower lethal temperature of Anobium punctatum. The egg stage was used for the experiments as it is considered the most temperature resistant stage. Groups of Anobium punctatu...
L Stengård Hansen
Biological control of sapstain fungi in wood
1996 - IRG/WP 96-10158
Sapstain fungi can cause serious damage to wood and wood products, resulting in a significant economic loss for the wood products industry. The purpose of the present investigation was to determine whether the sapstain in wood caused by sapstain fungi could be biologically controlled. Biological control of sapstain fungi in wood was demonstrated in field trials with nonpigmented isolates of Cerato...
S C Croan
Termites in Eastern Canada: A brief review and assessment
1987 - IRG/WP 1333
The distribution of termites in Canada is reviewed, with particular emphasis on the eastern subterranean termite Reticulitermes flavipes (Kollar) in Ontario province. Municipal and provincial termite control programs are discussed and current treatment practices are described. Previous research on Reticulitermes flavipes in Ontario is briefly reviewed, with reference to a number of unpublished rep...
J K Grace