Your search resulted in 942 documents. Displaying 25 entries per page.
Durability of Sugi (Cryptomeria japonica D.DoN ) wood treated in high temperature liquid paraffin
2002 - IRG/WP 02-40221
Sugi(Cryptomeria japonica D.DoN )wood was subject to a heat treatment in high-temperature liquid paraffin for the purpose of improving the resistance against fungi and termites without chemicals. The bath of paraffin liquid, which can provide a uniform heat transfer (±2?), was used at temperatures of 90?,120?and 150?.?ecay resistance according to JIS K 15711) was evaluated using a brown rot fungu...
Y Matsuoka, W Ohmura, S Fujiwara, Y Kanagawa
Copper tolerance of various Antrodia vaillantii isolates
2001 - IRG/WP 01-10406
Copper based preservatives have been extensively used in the field of wood preservation. However, several brown-rot fungi to be tolerant to copper and consequently, efficacy of copper based wood preservatives may not be sufficient. Copper tolerance is especially by some fungi that are closely aligned to or included in genus Antrodia. The highest copper tolerance was found at some strains of wood r...
F Pohleven, A Malnaric, M Humar, C Tavzes
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
Termite resistance of treated wood in an above-ground field test
1986 - IRG/WP 1300
This paper provides an update on the results from an above ground field test evaluating the effectiveness of wood preservatives against subterranean termites. Results for the one and two year inspections of treated southern pine sapwood exposed in Hawaii to Coptotermes formosanus are presented. Chromated copper arsenate is providing excellent protection as is the pyrethroid deltamethrin. Borate an...
A F Preston, P A McKaig, P J Walcheski
A 53-year old field trial to evaluate the performance of a range of chemical treatments on eucalypt poles
1989 - IRG/WP 3526
Hardwood pole stubs of Eucalyptus maculata, Eucalyptus pilularis, Eucalyptus saligna and Eucalyptus paniculata were examined for termite attack and fungal decay after 53 years in ground contact. The trial compared eight different chemical treatments with untreated pole stubs of the four species investigated. Untreated Eucalyptus paniculata, a Class I durability species, performed particularly well...
R S Johnstone, R A Eaton
Depletion of preservatives from treated wood: Results from laboratory, fungus cellar and field test
1993 - IRG/WP 93-50001-07
This paper compares results of preservative component losses using a range of test procedures with several different water-borne preservatives. The data shows that laboratory leaching tests are in some cases comparable to, but in other cases significantly underestimate preservative component losses when compared with field or fungus cellar depletion tests. The results also suggest that preservativ...
L Jin, A F Preston
Laboratory evaluation of AC 217,300 as a termiticidal dust
1983 - IRG/WP 3247
Laboratory bioassays are described with the amidinohydrazone, AC217,300, a candidate termiticide to replace arsenic trioxide in termite control. When used as a dust and topically applied, AC217,300 was toxic to Coptotermes acinaciformis and Mastotermes darwiniensis. Although arsenic trioxide dust causes faster mortality in Coptotermes acinaciformis than AC217,300 dust, the latter has lower mammali...
J R J French, P J Robinson
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
Efficacy of Avermectin B1 dust and bait formulations in new simulated and accelerated field tests
1985 - IRG/WP 1257
Avermectin B1 on a silica carrier dust was used in dust and bait formulations whose efficacy against Reticulitermes flavipes was assessed in new simulated and accelerated field tests. A 0.5 mg avermectin/mg dust and a bait with 50 ppm avermectin in paper pulp sandwiched between pieces of corrugated boxboard caused nearly complete mortality in bioassays and suppression of foraging in field tests. T...
G R Esenther
The development of a field testing technique using Coptotermes lacteus mounds in Australia
1985 - IRG/WP 1270
A method to rapidly screen potential bait substrates placed around Coptotermes lacteus mounds is described. A perforated P.V.C. conduit is buried in a shallow trench in a rectangular arrangement around an active mound. Seven P.V.C. holders containing cork baits are inserted vertically into the conduit around the mound. Within three weeks following installation of the baits around five mound coloni...
J R J French, P J Robinson
IRG/COIPM INTERNATIONAL MARINE TEST - To determine the effect of timber substrate on the efectiveness of different preservatives in sea-water: Coding scheme
1976 - IRG/WP 420
It was agreed in Wildhaus on 15 May 1976 that preparations for the test detailed in Document No: IRG/WP/414 should commence immediately, but that initially only two water-borne preservatives should be used - a copper/chrome/arsenic (CCA) and a copper/chrome/boron (CCB) formulation respectively. PRL, England (R Cockcroft) would be responsible for supplying only the reference species treated with th...
Anonymous
Foraging patterns of termite species in the living complexes of Bangkanoon forest plantation, Phuket province, Southern Thailand
2003 - IRG/WP 03-10481
Studies on foraging patterns of termite species in the living complexes of Bankanoon Forest Plantation, Phuket Province, southern Thailand, gave result of 11 species of subterranean termites (Coptotermes gestroi, Microtermes obesi, Macrotermes gilvus, Macrotermes carbonarius, Macrotermes anandalei, Odontotermes feae, Odontotermes proformosanus, Hypotermes makhamensis, Globitermes sulphureus, Micro...
Y Sornnuwat, C Vongkaluang, S Chutibhapakorn
Formosan Subterranean Termite Resistance to Heat Treatment of Scots Pine and Norway Spruce
2003 - IRG/WP 03-40264
New challenges to the durability of wood building materials have arisen in the U.S. The Formosan subterranean termite (Coptotermes formosanus Shiraki) now infests sizable portions of the U.S. south and their range is extending. Heat treatments offer a unique opportunity for wood-based composites because many of the process techniques already employ various thermal applications and could be easil...
W R Smith, A O Rapp, C R Welzbacher, J E Winandy
Moisture content and other tested values in. Double layer tests of different size in Lithuania and Germany
2004 - IRG/WP 04-20299
The paper presents measurement results of moisture content and the analysis of durability trial of double layer wood in variants of varying size, conducted in Girionys, Kaunas distr., Lithuania and in Hamburg, Germany. In this trial 3 sample sets of varying size, containing 25, 50 and 100 specimens, are used. The aim of this trial is to ascertain an optimal number of test specimens. The dynamics o...
J Saladis, A O Rapp
Termite physical barriers: update on retrofitting Granitgard™ around 'mock-up' buildings after five years
1997 - IRG/WP 97-10226
This field experiment was installed five years ago (March 1992) to evaluate the effectiveness of graded crushed granite stone, commercially marketed under the name Granitgard™, as a physical barrier when retrofitted around 'mock-up' buildings. The field site is located at Walpeup in the semi-arid mallee region of north-west Victoria (360 km from Melbourne), and there are eight ...
J R J French, B M Ahmed
Collaborative soft rot tests: Specific gravity loss resulting from soft rot
1973 - IRG/WP 227
It was proposed at the 5th meeting of Working Group II of the IRG in June 1973 in Lahti, Finland, that the specific gravity (swollen volume basis) of test blocks used in the IRG Collaborative Soft Rot Tests should be determined on all the blocks at the completion of the exposure period. Specific gravity determined on the basis of the oven dry weight and water swollen volume was selected because (1...
C R Levy
Suppression of termite feeding by Sudan red 7B
1988 - IRG/WP 1344
Groups of the Formosan subterranean termite, Coptotermes formosanus Shiraki, were fed for 14 days on wood shavings soaked in acetone solutions of one of three concentrations (0, 0.5, or 1%) of the dye, Sudan Red 7B. Groups of marked or unmarked termites were then placed in containers and allowed to feed on undyed wood for 21 days. Dyed termites had lower wood feeding rate, survivorship, and number...
K S Delaplane, L A Bourg, J P La Fage
Co-operative tests concerning the influence of solvent and drying method on the toxic limit of wood preservatives against Coniophora cerebella
1972 - IRG/WP 216
In the working group II of the IRG it was agreed that more knowledge was necessary concerning the influence of the solvent on the toxic limit of organic solvent types of wood preservatives against Basidiomycetes. A test program was drawn up and after discussion in the mentioned working group the final program was accepted by the co-operating institutes in 1969. In the test program two fungicides, ...
T Hof
Aggressiveness of Reticulitermes species in laboratory test
1993 - IRG/WP 93-10026
In European Standards concerned with the preventive action of wood preservatives against termites, i.e. EN 117, EN 118 the obligatory test species is Reticulitermes santonensis. It is argued that this species is more aggressive than the second European Reticulitermtes species, Reticulitermes lucifugus. Since Reticulitermes santonensis is confined to certain smaller areas in France and thus not rea...
H Hertel, S Pantos, D Rudolph
Soft rot - Soil burial - Tests. Influence of the addition of nitrogen compounds to the soil on wood decay by soft rot
1972 - IRG/WP 213
The decay of wood specimens buried in soil is influenced by various factors. Decisive are the water content, the content of organic substances, the pH-value, the content of mineral nutritive salts, nitrogen content, etc. of the soil. These tests were carried out in order to investigate if the decay of wood in the soil will be influenced by additions of various nitrogen-compounds in different conce...
O Wälchli
Leaching tests on CCA-treated wood using inorganic salt solutions
1984 - IRG/WP 3310
Pinus radiata sapwood treated to approximately 10 kg/m³ with Tanalith NCA or Tanalith C-type CCA preservatives was ground to a fine powder and samples were then leached with solutions of calcium chloride, calcium nitrate, magnesium nitrate, or a mixture of potassium di-hydrogen orthophosphate and di-potassium hydrogen orthophosphate, at 0.03M-1.00M solution concentrations. Leached wood samples we...
D V Plackett
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
Efficacy of triflumuron dust against Schedorhinotermes intermedius (Isoptera: Rhinotermitidae)
2000 - IRG/WP 00-30226
Insecticidal dusts have been used against termites for decades, with arsenic dust being the standard in Australia. While fair success over the years has been achieved against genera such as Coptotermes and Nasutitermes, Schedorhinotermes has been much more difficult to control. This genus has nests which are very difficult to locate and thus it is problematic to determine whether a treatment has b...
W Madden, P Hadlington, M Hill
Sub-group on Basidiomycete tests: Experimental programme and schedule of participants
1980 - IRG/WP 2145
The objectives of this IRG COLLABORATIVE BASIDIOMYCETE TEST are to compare results and assess reproducibility of a miniaturised wood block toxicity test when undertaken by different workers in different laboratories. The co-operative scientists and institutes are: Dr K Messner from Vienna (Austria); Dr R S Smith from Forintek (Canada); Mr J Hansen from Sadolins (Denmark); Mr B Jensen from Gori (De...
A F Bravery
Preliminary indications of the natural durability of Spruce bark board
1999 - IRG/WP 99-10312
A board material made from pressed bark, with no added adhesive, has been developed by Forintek's composites group and tested for durability by Forintek's treated-wood group and the University of Hawaii. This material was also manufactured with veneers in a one-step process. Since one role of bark on the tree is protection against pests and diseases, barkboard was expected to hav...
P I Morris, J K Grace, G E Troughton