Your search resulted in 1288 documents. Displaying 25 entries per page.
Trials on the field control of the Formosan subterranean termite with Amdro® bait
1982 - IRG/WP 1163
Amdro® - treated paper towels were introduced into two field colonies of the Formosan subterranean termite in Hawaii. At the concentration of 180 ppm, the toxicant bait was ineffective one month after the introduction. At higher concentrations (> 6,400 ppm), the baits were eaten initially; however, one week after introduction, termites avoided or covered the baits. The 15,000 ppm baits supress...
N-Y Su, M Tamashiro, J R Yates III
Termite and decay protection - A superficial barrier field test
1983 - IRG/WP 3257
Samples of Pinus radiata were given a superficial barrier treatment and installed in the ground at two sites for five years to observe termite and fungal attack. The three best treatments of the series were Denso petroleum tape, Koppers hot dip tar enamel, and Arquad 2C/75 alkyl ammonium compound. As new fungicides and insecticides become available they are being added to the test using the same s...
R S Johnstone, W D Gardner
Sequential exposure of borate treated Douglas-fir to multiple Formosan subterranean termite colonies in a 40-week field test
1993 - IRG/WP 93-10006
Douglas-fir boards (ca. 74.5 g) pressure-treated with disodium octaborate tetrahydrate (DOT) retentions of 0 (controls), 0.88, 1.23, 1.60, or 2.10% (weight/weight) DOT were sequentially exposed to four active field colonies of Formosan subterranean termites, Coptotermes formosanus Shiraki (Isoptera: Rhinotermitidae), in an above-ground field test. Samples were placed in contact with each colony fo...
J K Grace, R T Yamamoto
Baiting techniques for subterranean termite control
1983 - IRG/WP 1205
The use of artificial baits, with and without toxins, have proved effective in attracting large numbers of non-mound and mound building subterranean termites in both urban and rural areas. An outline is presented of a termite baiting program which emphasises concurrent laboratory and field investigations on termite ecology, behaviour and physiology...
J R J French, J P Robinson
Termite field test results of preservative treated and modified woods in Kumamoto, Japan
2001 - IRG/WP 01-30275
Various preservative treated or modified wood stakes other than CCA, were buried in the soil, maximum for six years in Kumamoto, south west side of Japan. In this area, two main termite species, Coptotermes formosanus and Reticulitermes speratus, are distributed. After two years in field, untreated sapwood of sugi (Cryptomeria japonica) were observed severe attacks by termites, but the preservativ...
K Suzuki
Methods for testing fumigant efficacies against termites
1986 - IRG/WP 1297
Methodologies for testing fumigants against termites are reviewed and factors needed to be taken under consideration for standardization listed. Toxicity should be defined by both direct exposure to the gas and under more practical "barrier" conditions which include test enclosures simulating abiotic surroundings of the termites, i.e. wood, nest material, etc. To observe latent effects, mortality ...
N-Y Su, R H Scheffrahn
Natural durability of wood in ground contact - A correlation between field and laboratory tests
1985 - IRG/WP 2182
A field test is being carried out to evaluate the natural durability of 20 hardwoods. The resistance to decay and termite attack was evaluated in accelerated laboratory tests. The results of the field test after 6 years and 8 months indicate that there is not necessarily agreement between results from laboratory and field tests. It is pointed out that apart from the artificiality of the laboratory...
M S Cavalcante, G A C Lopez, R G Montagna, M E S Fosco Mucci
A termite field test with diffusion treated lumber
1991 - IRG/WP 3648
Douglas fir lumber, diffusion treated with concentrated sodium octaborate solutions, was tested against Coptotermes formosanus in an above ground field test wherein the samples were not exposed to a direct leaching hazard during the test period. After 2.5 years exposure, the untreated control samples were almost completely destroyed while poorly treated controls pressure treated with chromated cop...
K J Archer, D A Fowlie, A F Preston, P J Walcheski
Field test results for the elimination of subterranean termite (Coptotermes formosanus) colonies by a bait system containing the IGR hexaflumuron
1997 - IRG/WP 97-10222
Field studies were conducted at Chichijima (Ogasawara Islands, Tokyo) to determine the effectiveness of a termite bait system (commercial name: Sentricon* system) containing hexaflumuron (Insect Growth Regulator: IGR) in the elimination of subterranean termite (Coptotermes formosanus) colonies. The level of subterranean termite activity on Ogasawara Islands is high resulting in extensive damage to...
K Suzuki, Y Morita, K Yamauchi
Termite Field Tests of Various Timber Species Treated with permethrin using supercritical carbon dioxide
2005 - IRG/WP 05-10560
Termite field tests were conducted on permethrin-treated Eucalyptus obliqua heartwood, Pinus radiata sapwood and P. radiata LVL. The permethrin was impregnated using either supercritical carbon dioxide (scCO2) or light organic solvent preservative (LOSP) systems. Comparative permethrin retentions were most accurately achieved in P. radiata sapwood, where no difference between impregnation systems ...
A Qader, L J Cookson, J W Creffield, D Scown
Protection of southern pine using N,N-Napthaloylhydroxylamine: Field tests, soft-rot cellars and aquatic bioassay leach testing
1999 - IRG/WP 99-30204
Recent environmental restrictions are limiting the use of broad-spectrum biocides for wood preservation. There is an urgent need for new, sharply targeted, environmentally benign wood preservatives. N'N-Napthaloylhydroxylamine (NHA), a water-soluble calcium-precipitating agent, has been shown to inhibit decay by brown-rot and white-rot fungi in soil-block tests and prevent damage by Easte...
D M Crawford, F Green III
Occurrence of termite species on decaying heartwood specimens exposed 18 to 23 years at an Australian site
1998 - IRG/WP 98-10270
The occurrence of species of subterranean termites on hardwood and softwood specimens (including preservative-treated), exposed in-ground at a semi-arid site at Walpeup (north-western Victoria), 18 to 23 years after installation, is reported. This paper presents maps of the cumulative occurrence on specimens, after six annual inspections, of the following species: Coptotermes acinaciformis, Hetero...
J W Creffield, J-D Thornton, G C Johnson
Subterranean termite attack potential in field test sites: assessment methods and field characterization
2003 - IRG/WP 03-10472
To assess subterranean termite attack potential in the field and seasonal variations, trials were set up in each of two managed silvicultural plantations, of Eucalyptus globulus and Pinus pinaster, respectively. Termite occupancy in lying dead wood was evaluated by an adaptation of the line-intersection method, and attack potential in soil was assessed by a system of stakes inserted into the groun...
T Nobre, L Nunes, L Brinca, D E Bignell
Soil termiticides: A review of efficacy data from field tests
1987 - IRG/WP 1323
This paper reports efficacy data from the field evaluation of various soil termiticides by the U.S. Department of Agriculture, Forest Service, Gulfport, Mississippi. These chemicals, which include a number of chlorinated hydrocarbon, organophosphate, pyrethroid, and carbamate insecticides in a range of concentrations, have been in long-term tests at seven field sites. Data are reported for the gro...
J K Mauldin, S C Jones, R H Beal
Performance of Two Imidacloprid-Treated Malaysian Hardwoods in an Accelerated Aboveground Termite Test
2005 - IRG/WP 05-30389
The performance of the chloronicotinyl insecticide imidacloprid as a wood protecting termiticide, under a simulated Malaysian biological hazard class H2 (exposure aboveground indoors against termites and wood borers), was evaluated by a novel termite field test protocol. Replicate end-grain sealed air dried test blocks (20 x 20 x 20 mm) of two Malaysian hardwoods, Kembang Semangkok (Scaphium spp.)...
A H H Wong
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
Evaluation of teak sawdayst Tectona grandis L Fil as a potential source to obtain a natural wood preservative in Colombia
2004 - IRG/WP 04-30356
Plantation Teak (Tectona grandis L. Fil) has been tested as a possible source of natural wood preservatives due to the known excellent durability of old-growth teak wood. Field tests (ground proximity termite and above ground simulated decking exposures) were established in Colombia in April 2003 at two different test sites with different climates (Tropical Dry and Rain forest). Teak heartwood ex...
A Castillo, Y Cabrera, A F Preston, R Morris
Results on field stake tests against termite – Maximum for 8 years examination at Kumamoto in Japan
2003 - IRG/WP 03-10463
Various preservative treated or modified wood and charcoal painting stakes were tested in field, maximum for eight years in Kumamoto, distributed two main termite species, Coptotermes formosanus and Reticulitermes speratus. After two years in field, untreated sapwood of sugi (Cryptomeria japonica) were observed severe attacks by termites, but the preservative treated stakes were observed no signif...
K Suzuki
Performance of Borate-treated lumber in a four-year, above-ground termite field test in Hawaii
2001 - IRG/WP 01-30265
We report the fourth year of field study results from a protected above-ground field test in Hawaii simulating the sill plate (dodai) used in conventional Japanese housing construction. Field tests were established in both Hawaii and Japan to examine the efficacy of disodium octaborate tetrahydrate (DOT, 2% and 3% shell and through) wood treatments. In Hawaii, chromated copper arsenate (CCA, 4 kg/...
J K Grace, R J Oshiro, A Byrne, P I Morris, K Tsunoda
Six-year Report on the Performance of Borate-treated Lumber in an Above-ground Termite Field Test in Hawaii
2004 - IRG/WP 04-30343
We report the fifth and sixth years of field study results from a protected above-ground field test in Hawaii simulating the sill plate (dodai) used in conventional Japanese housing construction. Field tests were established in both Hawaii and Japan to examine the efficacy of disodium octaborate tetrahydrate (DOT, 2% and 3% BAE shell and through) wood treatments. In Hawaii, chromated copper arsen...
J K Grace, A Byrne, P I Morris, K Tsunoda
A case for ecosystem-level experimentation - A discussion paper
1986 - IRG/WP 1296
Although laboratory bioassays provide a first step in testing for potential termiticides and assist in formulating recommendations of these chemicals for regulatory agencies and users, they are not designed for predicting effects on natural populations (including humans) and on ecosystem-level features. To overcome this we need microcosm studies, carefully controlled experimental manipulations of ...
J R J French
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
Deltamethrin effectiveness against subterranean termite attack on wood under natural conditions
1989 - IRG/WP 1407
On fighting subterranean termites on wood, out of ground contact, the synthetic pyrethroid Deltamethrin shows positive aspects such as its efficiency and low mammalian toxicity. To evaluate its performance in conditions very similar to those in service use, specimens of Pinus sp were treated with solutions of Deltamethrin diluted in "white spirits" at 0.005% (w/w) and 0.01% (w/w) and exposed in a ...
P A Zanotto
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
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