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Performance of preservative-treated hardwoods with particular reference to soft rot. Report of condition of specimens installed in Victoria, Australia
1980 - IRG/WP 3155
J Beesley, R McCarthy


Coding scheme for samples for IRG world-wide co-operative field experiment
1975 - IRG/WP 360
Each sample has been given a number containing six digits (eg 16 23 05). The first 2 digits indicate the country and person supplying the timber, the second 2 digits indicate the species of timber, and the last two digits indicate the treating concentration. All samples which end with the numbers 26 to 50 are to be placed in one site in the United Kingdom, probably at the Imperial College site at ...
R Cockcroft


Letter to the IRG meeting at Peebles, 1978
1978 - IRG/WP 181
J F Levy, R Cockcroft


Nitrogen content of soils at field sites
1981 - IRG/WP 1133
Nine participants in the Collaborative Field Experiment submitted samples for nitrogen analysis to this laboratory as requested by Leightley (IRG/WP/3162). These arrived in a variety of conditions e.g. wet, dried, sterilised and unsterilised and sometimes spent a considerable time in transit. Soils varied in cellular fraction organic matter content, some were obviously sieved prior to postage whil...
B King, G Mowe


Collaborative field experiment. Questionnaire re site/soil
1980 - IRG/WP 3162
L E Leightley


Collaborative field experiment: Analysis of copper and chromium in stakes of the four reference timbers
1982 - IRG/WP 3213
The stakes analysed belong to the Swedish set of the four reference timbers of the collaborative field experiment (Document No: IRG/WP/367). Before the field exposure 60 mm were cut off the end of each stake. This was done in order to be able to carry out chemical analyses as well as different types of testing. Some of the material has been used in softrot tests (Document No: IRG/WP/1151)....
T Nilsson


IRG WG III - World-wide co-operative field experiment
1977 - IRG/WP 383
R Cockcroft


Co-operative Field Experiment: Performance of preservative-treated timber: Report on condition of specimens after seven years installed in New South Wales - Australia
1986 - IRG/WP 3362
R S Johnstone


IRG soft rot stake test. Site: 03 Australia. Progress repor
1980 - IRG/WP 1114
IRG soft-rot test stakes were installed in site 03 Australia 16.6.77. The stakes have been inspected twice, (28.11.78 (Johnson, 1979) and 31.10.79) for signs of decay, and used to obtain fungal isolates. The condition of stakes in the supplementary soft-rot test has also been examined....
L E Leightley, D M Francis, R S Johnstone


Co-operative field experiment. Performance of preservative-treated hardwoods with particular reference to soft rot: Report of condition of specimens installed in Victoria, Australia
1978 - IRG/WP 3118
J Beesley


Proposals for a field experiment to determine the performance of preservative treated hardwoods with particular reference to soft rot
1975 - IRG/WP 342
It is proposed to treat a series of hardwood stakes in the UK and install them in different sites around the world. The stakes will include 3 reference species common to every site and 2 locally selected species. The hazard of termites should be avoided in order to limit the study to action of micro-organisms....
D J Dickinson


Soft-rot problems with treated hardwoods: A paper for discussion and establishment of a programme of work
1974 - IRG/WP 331
At the 5th meeting of IRG in Lahti (June 1973) it was decided that an ad hoc group should be formed to study these problems. It was decided that it's activity could be usefully directed in two main areas; a) in the encouragement and direction of existing research in this field, and b) in the organising of a collaborative field trial involving interested parties using locally important har...
D J Dickinson


Supplementary experiment to the main trial (IRG/WP/367, 384) to determine the performance of preservative treated hardwoods with particular reference to soft rot
1977 - IRG/WP 3101
The field experiment being carried out by the IRG (described in document IRG/WP/367) is designed to obtain information on the performance of a preservative in different hardwoods in ground contact. A total of 57 timber species is being examined and 36 different field sites are involved representing a complete range of climatic conditions. IRG document WP/384 describes the treatment details of the ...
F W Brooks, C R Coggins, D J Dickinson


Final proposals for a field experiment to determine the performance of preservative treated hardwoods with particular reference to soft rot
1976 - IRG/WP 367
A series of hardwood stakes have been prepared and treated in the UK from samples (mainly sapwood) supplied from participants around the world. The stakes include 4 reference species common to each site and, in most cases, at least 2 local species of importance. The treated stakes will be despatched to the co-operating scientists and installed under local conditions. It is hoped that with periodic...
D J Dickinson


Co-operative work on the performance of treated timber in ground contact
1975 - IRG/WP 344
At the 6th meeting of The International Research Group on Wood Preservation in Vienna, it was decided to approach all interested parties in order to: collate available information, set up collaborative work and to stimulate research on the performance of treated timber, especially hardwoods, in ground contact. In recent years, considerable concern has been expressed about the performance of preser...
D J Dickinson, J F Levy


Treatment details for the field experiment to determine the performance of preservative treated hardwoods with particlar reference to soft rot
1977 - IRG/WP 384
These notes are compiled to complement and supplement Document No: IRG/WP/367 which described the plan for the treatment of the stakes, using a CCA preservative, for the field experiment. This document gives extra details of the treatment characteristics of the different timber species and as such may give IRG members useful information on the sapwood permeability of a range of hardwoods. The repo...
F W Brooks, M R Gayles


Hardwood field experiment - 10 year report
1989 - IRG/WP 3560
The international hardwood field experiment was planned in 1976 and set up in some 34 different sites around the world. The test stakes include 4 reference species common to each site and in most cases at least 2 species of local importance (supplementary species). It was hoped that a picture of performance of a range of economically important timber species would be built up and at the same time ...
D J Dickinson, S M Gray


Termite physical barriers: Is retrofitting with Granitgard an option?
1993 - IRG/WP 93-40011
Granite particles within the range of 2.4 to 1.7 mm diameter were recently adopted by the Standards Association of Australia as an alternative treatment to soil chemical barriers in protecting new buildings against subterranean termites. The granite substrate is sold under the commercial name, "Granitgard". However, there are many existing buildings that have no chemical or physical subterranean t...
J R J French, B M Ahmed


Hardwood field experiment: Progress report 1977-82
1982 - IRG/WP 3200
The international hardwood field experiment was planned in 1976 and set up in some 30 different sites around the world. The test stakes include 4 reference species common to each site and in most cases at least 2 species of local importance. It was hoped that a picture of performance of a range of economically important species would be built up and at the same time provide vital background inform...
D J Dickinson, J F Levy


Preliminary results from the field experiment to determine the performance of preservative treated hardwoods with particular reference to soft rot. The four reference timber
1980 - IRG/WP 3164
The results given in the Tables 1-4 each refer to one of the four reference species treated with four solution concentrations of CCA as recorded from each test site. The species are: Alstonia scholaris, Betula pendula, Fagus sylvatica, Pinus sylvestris. The treatments were: Untreated, 0.66% CCA, 1.53% CCA, 3.01% CCA, 5.60% CCA. Each figure is an average of the ratings recorded for each replicate o...
J F Levy, D J Dickinson


Hardwood Field Experiment: Progress Report 1977-1986
1986 - IRG/WP 3391
The international hardwood field experiment was planned in l976 and set up in same 30 different sites around the world. The test stakes include 4 reference species common to each site and in most cases at least 2 species of local importance. It was hoped that a picture of performance of a range of economically important species would be built up and at the same time provide vital background inform...
D J Dickinson, S M Gray


IRG test of preservative-treated hardwoods with particular reference to soft rot. Report on condition of specimens installed in Victoria, Australia
1984 - IRG/WP 3318
Over a third of the treated stakes involved in this test have been mechanically damaged. As many of these stakes broke off at or near groundline they could not be reinstalled. So they have been removed from the study despite most exhibiting little or no decay. Because of the mechanical damage to a substantial number of the treated stakes, we propose to terminate the CSIRO part of this study after ...
G C Johnson, J D Thornton


Protection for whole-of-house timbers from subterranean termites in Australia
2005 - IRG/WP 05-20315
A field study was designed to increase maximum protection of whole-of-house timbers against subterranean termites. Concrete slab and suspended floor simulated houses were constructed using untreated and treated (slow acting toxicants) timber frames. The treated and untreated timber structures within the simulated houses were exposed with or without soil chemical and/or physical barriers in the fie...
B M Ahmed, J R J French, P Vinden, P Blackwell, J Hann


Biological control of internal decay in Scots pine poles: A seven year experiment
1992 - IRG/WP 92-1529
The interactions between key fungi were monitored, by non-destructive and destructive sampling methods, during the course of an experiment on the effectiveness of Scytalidium sp. and Trichoderma spp. for eliminating established infections of Lentinus lepideus (Fr. ex Fr.) Fr. in creosoted Pinus sylvestris poles. Although extensively isolated at the beginning and end of the experiment, Trichoderma ...
P I Morris, D J Dickinson, B Calver


The effect of copper/chrome/arsenic (CCA) treated timber on soil fungi
1981 - IRG/WP 1131
The aim of this investigation was to study the effect of CCA treated wood on the microflora of soil with particular reference to copper tolerant soft rot fungi. The IRG collaborative field experiment was designed to monitor the performance of a range of preservative treated hardwoods with particular reference to soft rot in CCA treated timber (Dickinson 1976) and site 33 of this experiment was use...
R J Murphy, D J Dickinson


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