Your search resulted in 595 documents. Displaying 25 entries per page.
Practical considerations of the Formosan subterranean termite in Louisiana: A 50-year-old problem
2000 - IRG/WP 00-10330
In an eleven-year censusing (1989 through 1999) in the French Quarter of New Orleans and surrounding areas, Coptotermes formosanus alate numbers were found to be increasing dramatically in all years but one. Moreover, in parks and neighborhoods in New Orleans and Lake Charles, LA, as well as in Sam Houston Jones State Park near Lake Charles surveyed in 1998, alarmingly high numbers of this exotic ...
G Henderson
Termite resistance of treated wood in an above-ground field test
1985 - IRG/WP 2241
A field test method has been developed for evaluating the susceptibility of wood products to termites in protected situations above ground. In this method fungal attack on the wood products is minimal, though decay has been observed in conjunction with termite attack in some specimens. Preliminary results from exposure of replicate wood samples treated with preservatives in Florida to Reticuliterm...
A F Preston, P A McKaig, P J Walcheski
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
Preliminary pole treatment trials with chlorothalonil in hydrocarbon solvent
1994 - IRG/WP 94-40027
A series of 460-mm long, end-sealed southern pine pole stubs were treated with chlorothalonil in hydrocarbon solvent. Over sixty sections were treated using various combinations of initial seasoning (kiln-drying, steam-conditioning), treating temperature (ambient, 200°F), initial air pressure, and final conditioning (steam flash + vacuum, expansion bath + vacuum, steam distillation + vacuum). Dis...
H M Barnes
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
Application of oscillating pressure to improve treatability of refractory species
1987 - IRG/WP 3449
Under practical conditions a minimum moisture content of 80% demande by the German quality standard RAL-RG 411 can not be guaranteed throughout the year. Storage of logs with bark prolonges the drying process; a storage without bark must be avoided. A sufficient penetration according the standard can be achieved at least with a moisture content of 60%, optimal conditions may prevail between 100% a...
R-D Peek
Penetration and absorption of water-borne preservatives in conifers from the Western United States: A preliminary report
1988 - IRG/WP 3475
The treatment of most softwoods from the western United States with waterborne chemicals poses a major challenge. Although many of these species are commercially treated with waterbornes, there is considerable debate about their treatability. At present, there is little or no information on the treatability of western wood species with waterborne chemicals. The lack of accurate treatability inform...
S Kumar, J J Morrell
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
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
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
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
A simple field apparatus for measuring relative gaff penetration and assessing the effect of additives for improving pole climbability
2000 - IRG/WP 00-20187
A simple apparatus for measuring and comparing the relative "hardness" of utility poles is described. This "slide-hammer" gaff penetration apparatus was designed as a field testing unit to measure the depth of gaff penetration into test poles after application of a uniform and reproducible force to the gaff. The apparatus is simple to use in both the laboratory and field. Data is provided for resu...
A R Zahora
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
Suitability of different termite species for laboratory testing
1982 - IRG/WP 1159
Different termite species were tested in the laboratory to evaluate the effectiveness of insecticides and wood preservatives in wood against termite attack. Determined were the optimum group size and composition, the matrix (vermiculite) volume and its moisture content. Choice feeding tests with fully impregnated wood blocks which are carried out according to a modified EN 117 procedure for Reticu...
U Kny, H Kühne
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
Creosote for wood preservation. (Reissued from earlier OECD draft)
1970 - IRG/WP III 1A
The literature on this subject is extensive and, to some extent, repetitive so that for pratical reference purposes it is essential that selective surveys and bibliographies be prepared. Many of these exist and, as an example, the reports issued by The Coal Tar Research Association (Numbers 0156, 0292 and 0396) may be quoted. The following bibliography, listing the more important sources of inform...
Anonymous
Penetration of oil-borne preservatives in American elm
1975 - IRG/WP 355
Pressure treatment of elm posts and cants by Rueping schedules resulted in erratic penetration. Instead of the expected gradual decrease in retention from surface inward in posts, inner zones frequently contained more preservative than the surface quarter inch. Heartwood was found penetrated when sapwood was not. There were numerous skips in treated zones. The prevalence and possible causes were i...
E A Behr
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
Conforming to European standards on preservative treatment
1998 - IRG/WP 98-20150
New European standards require that specifications for the preservative treatment of timber are written in terms of the penetration and retention of preservative within the treated commodity that result from the treatment process. In order to check compliance with this type of specification, suitable methods of quantitative analysis must be available. This paper presents the results of a study by ...
E D Suttie, R J Orsler
The UK termite eradication programme: Justification and implementation
2000 - IRG/WP 00-10373
In May 1998, an established infestation of subterranean termites (Reticulitermes lucifugus subsp. grassei) was found in a semi-rural, coastal setting in Saunton, North Devon. Surveys and monitoring revealed a discrete, highly localised infestation extending over some 2400 square metres. There is some evidence that the termites were imported accidentally possibly more than 30 years previously. With...
R H J Verkerk, A F Bravery
Laboratory tests on the residual effects of pyrethroids against termites thirteen years after application
1994 - IRG/WP 94-30056
This paper is in continuation to a series of articles published on the work being developed in Brazil regarding the feasibility of using photostabl synthetic pyrethroids against termites. Tests were carried out to compare the efficacy of five synthetic pyrethroids with the traditional organo-chlorinated pesticide, chlordane. Wooden blocks were impregnated with alcohol-based solutions of the above-...
A M F Oliveira
Susceptibility of heartwood of three Pinus species to attack by the subterranean termite Coptotermes acinaciformis (Froggatt)
1994 - IRG/WP 94-20026
Heartwood of plantation-grown Pinus elliottii (slash pine), Pinus caribaea (Caribbean pine) and Pinus radiata (radiata pine) was obtained from a range of locations throughout Australia and New Zealand for use in a field bioassey with subterranean termites. Timber stock was analysed for a number of stilbene and flavonoid heartwood extractive components which could contribute to variation in suscept...
M J Kennedy, L L Dixon, B C Peters
Preservative treatment of round bamboos by a new technique - Some further studies. Part 1
1990 - IRG/WP 3607
In general, the easy susceptibility of bamboos to wood destroying agencies is a major constraint in its rational utilisation. This is more so in tropical countries like India where wood destroying agencies are quite active. In an earlier publication, it was reported that round bamboo specimens of Bambusa balcooa, having three nodes, could be satisfactorily treated by CCA by a new technique develop...
V R Sonti, B Chatterjee
Diffusion treatment of gauged radiata pine timber using "Boracol 20"
1987 - IRG/WP 3437
Green gauged 100 x 50 mm radiata pine timber was preservative treated by brush application of "Boracol 20" followed by diffusion storage. Preservative retention analyses indicated that retention requirements in the core could be achieved within a six week diffusion period, thus representing a time saving of 25% over conventional boron treatment of rough-sawn radiata pine. Similar treatment of kiln...
D R Page, P Vinden, S Retter