Your search resulted in 302 documents. Displaying 25 entries per page.
Examination of algal and wood extracts for the control of marine borers
1999 - IRG/WP 99-10306
Extracts obtained from a marine alga and white cypress pine (Callitris glaucophylla J. Thompson & L.J. Johnson) were examined for their ability to control marine borers. In a two week laboratory bioassay, filter papers were soaked in 0-8% extract concentrations, dried, and placed with Limnoria quadripunctata Holthuis in Petri dishes containing seawater. The 8% algal extract virtually prevented...
D Scown, L J Cookson, R De Nys
Does Limnoria lignorum (Rathke) or other cold-water xylophagous limnoriid species exist in southern oceans?
1989 - IRG/WP 4152
The question is posed whether the cold-water limnoriid wood borer Limnoria lignorum (Rathke), or any other such cold-water limnoriid exists in southern oceans. The evidence of collections from various high latitude southern coastlines is cited and the singular absence of any cold-water limnoriid borer noted. The need for further. and possibly extensive, searches for such borers is stressed. i.e. i...
J E Barnacle, L J Cookson
Growth of selected wood decay fungi on various agar-supplemented media
2003 - IRG/WP 03-10456
The growth rates of a selection of wood decay fungi (brown and white rots) on various agar-supplemented media have been determined and compared. The agar media investigated were Malt extract agar (MEA), Potato dextrose agar (PDA), YMPG agar (yeast extract, malt extract, bacto-peptone, glucose, asparagine and thiamine), YMPG agar (without amino acids) and Beech wood powder agar (BWA). The tested wo...
S A Amartey, M Humar, F Pohleven
Durability of Anogeissus acuminata timber used for plank-built catamarans
2005 - IRG/WP 05-10551
Catamaran, the most versatile traditional fishing craft used along the Indian coast is made hitherto of solid timber of a few selected species of broad-leaved soft woods. Due to scarcity coupled with high cost of these timbers, the craft, of late, are fabricated from the wooden planks of an indigenous hardwood species, namely, Anogeissus acuminata (Yon) belonging to the family Combretaceae. Infor...
M V Rao, M Balaji, V Kuppusamy, K S Rao
Natural durability of fifty species of Indian timber in Goa waters against marine wood-borers
1989 - IRG/WP 4150
Results of the investigations on the natural durabilitv of fifty species of Indian timber, based on data collected bv exposing test panels at Betim near Panaji (Goa) continuously for a period of 11 months are presented. The study revealed that none of the timber species tested has any natural resistance at this locality and all the panels were completely destroyed within 11 months. Details on the ...
L N Santhakumaran, S Udaya Bhaskar, J C Jain
Microbial fouling of 10-40% naphthalene in creosote treated and untreated wooden pilings in the marine environment - A progress report
1980 - IRG/WP 455
In June 1978, Document No: IRG/WP/442 entitled 'Microbial Biofouling of 10-40% Naphthalene in Creosote Treated and Untreated Wooden Pilings in the Marine Environment" was released to the IRG members as a report on the early results of a long term (about 5 years) study of whether the naphthalene content of creosote was importart in protecting wood pilings in the marine environment from bor...
R R Colwell, A J Emery
The evaluation of non-rubber extractives from the guayule plant (Parthenium argentatum Gray) for pesticidal worth
1986 - IRG/WP 4125
The resin obtained from the guayule plant (Parthenium argentatum Gray) of the southwestern United States is a potentially imporant domestic source of natural rubber, however only about 20 percent of the extractives from the plant produce this material. An effort is underway to find marketable uses for the remaining non-rubber extractives, and the Naval Research Laboratory is evaluating this resin ...
J D Bultman, R H Beal, C A Bailey, W W Schloman
Above-Ground Durability Estimation in Australia. Results after 16 years exposure
2005 - IRG/WP 05-20314
A program of research was established in 1987 to examine the above-ground durability of a selection of timbers that are commercially significant in Australia. Test samples were assembled in an L-Joint design and placed on exposure racks in a format to replicate joinery that is exposed to the weather above ground. Both painted and unpainted material has been exposed.
Test samples have been evaluat...
L P Francis, J Norton
Timber deterioration and its prevention in marine environment
2005 - IRG/WP 05-10559
Wood-borer activity is an established fact in Mumbai harbour that leads to severe deterioration of timber. In order to prevent the deterioration caused by wood borers three resin preservatives containing Zinc borate, Organo-copper polymer (4 wt% Cu) and Organo-Tin polymer Copoly(TBTM-MMA) were used for timber treatment. Test panels were treated using standard method and the...
B S Swami, M Udhayakumar, P Kumar, A B Samui
Marine trials with water-borne salts and organotin compound
1986 - IRG/WP 4128
Pinus sylvestris blocks treated with water-borne salts (CCA, CCB, CCF) and organotin compounds (TBTO, TBTCl) were submerged in the sea at Follonica station. The results obtained after 12 years of immersion are presented. The samples treated with CCA, CCB and CCF at the lowest concentration (2%) were destroyed after 7-9 years and the samples treated with CCB and CCF at the highest concentrations (4...
A Gambetta, E Orlandi
IRG/COIPM INTERNATIONAL MARINE TEST - to determine the effect of timber substrate on the effectiveness of water-borne salt preservatives in sea-water. Progress Report 18. Report of seventh inspection (72 months) in Australia
1984 - IRG/WP 4108
This report includes the results for the 72 month inspection of the IRG/COIPM International Marine Test installed in Sydney Harbour. Although, overall, attack by teredinid and limnorid borers have been most commonly encountered in test specimens at this site, slight attack, mainly by sphaeromatids, has recently been initiated on some hitherto unattacked treated Alstonia scholaris and Pinus sylvest...
L J Cookson, J E Barnacle
Surface accumulation of copper on CCA-impregnated Pinus patula stakes during marine preservative trials in the southern hemisphere
1992 - IRG/WP 92-4181
Pinus patula stakes treated with CCA to target retentions of 30 kg/m³ salts were exposed to sea water in marine and estuarine ecosystems off the coast of Southern Africa for two years. Samples were then analysed for copper and arsenic. Analysis of samples from the marine ecosystem showed (IRG/WP/4167) that arsenic was longitudinally and transversely leached from the wood, whereas the copper was r...
G D Shelver, C D McQuaid, M Tarin, A A W Baecker
Screening techniques for potential wood preservative chemicals. Proceedings of a special seminar held in association with the 10th Annual Meeting of the IRG, Peebles 1978. Report No 136, 1979
1980 - IRG/WP 2138
This paper continues following issues:
I. SCREENING INSECTICIDES
1) R W Berry (BRE/PRL, UK): Screen testing of insecticides for use in remedial wood preservatives.
2) D J Cross (FRI, New Zealand): Rapid screening of contact insecticides for use on forest products.
3) C R Coggins; A Forsyth; A E Glaser (Rentokil, UK): Experience in the use of indicative screening techniques for termiticides.
...
Anonymous
Sphaeroma terebrans Bate: A note on distribution and preservative tolerance in Florida coastal waters
1987 - IRG/WP 4135
Treated test panels were installed in January 1984 in a Florida estuary where Sphaeroma terebrans had severely damaged pilings treated with copper chromate arsenate (CCA). Test treatments were CCA at three retentions, coal-tar creosote at three retentions, creosote with chlorpyrifos, dual treatment with CCA and creosote, and three types of chemical modification of the wood test panels. We describe...
B R Johnson, E D Estevez, S A Rice
Ability of chloropicrin, Vorlex, or methylisothiocyante to prevent marine borer attack of Douglas fir piling
1989 - IRG/WP 4153
The preservative-treated shell around Douglas-fir piling is an excellent barrier to attack by marine borers; however, damage to this shell can permit marine borer attack. The feasibility of using fumigants to enhance piling performance was examined by exposing fumigant-treated Douglas-fir sections in marine waters off Newport, OR, or Port Hueneme, CA. The piling were inspected annually and increme...
M A Newbill, J J Morrell
Performance of Paraserianthus falcataria treated with ACZA, ACQ, CC or CCA and exposed in Krishnapatnam harbour, India
2005 - IRG/WP 05-30382
Paraserianthus falcataria (=Albizia falcataria) treated to two retentions with ammoniacal copper zinc arsenate (ACZA), ammoniacal copper quaternary (ACQ), ammoniacal copper citrate (CC) and chromated copper arsenate (CCA) was assessed over 34 months in a tropical marine waters at Krishnapatnam harbour on the east coast of India. ACZA treatment showed comparatively better resistance than CCA, ACQ a...
B Tarakanadha, K S Rao, J J Morrell
Relative tolerance of CCA by larvae and adults of the common shipworm, Bankia gouldi
1992 - IRG/WP 92-4174
Southern pine sapwood "2 x 4´s" were created by bolting together four panels 13 mm thick by 89 mm wide by 457 mm long. The two outer laminates were untreated and the two inner laminates were each treated to different CCA retentions, ranging from 8.0 to 43.2 kg/m³. Test specimens were exposed from May to October in a tributary of the Chesapeake Bay. Larvae were unable to settle on and burrow into...
B R Johnson
The role of contact chemoreception in location of wood by the marine borer Limnoria (Isopoda)
1996 - IRG/WP 96-10157
This paper investigates the ability of Limnoria (Isopoda: Limnoriidae) to determine chemical differences in wood substrates, while in contact with the substrates. Test substrates were chosen on the basis of previous arguments concerning the chemical state of wood prior to Limnoria attack: microbial, ergosterol, metabolite, humic, extract and control (autoclaved) veneers were used as experimental s...
S M Henderson, S M Cragg
Comparative natural resistance of eighty-two timber species to damage by marine borers at Goa (India)
1996 - IRG/WP 96-10139
Natural bioresistance of eighty-two species of Indian timbers to attack by marine wood-borers has been presented based on data collected from test panels exposed in Goa waters (west coast of India) for periods ranging from five to thirteen months. All the timber species, except Artocarpus gomeziana and Pterocarpus santalinus, were completely destroyed within a short period of three to six months. ...
L N Santhakumaran
Controlling marine borer attack of timber piles with plastic wraps
1981 - IRG/WP 479
Plastic films 20 to 40 mils thick have been used for many years to wrap creosoted timber piles in service to protect them from attack by marine borers. As long as the wrap remains undamaged, this procedure provides complete protection to the pile. Properly applied, wraps generally provide protection for 25 yeara or longer. Polyvinyl chloride (PVC) and polyethylene (PE) films are specially formulat...
F Steiger, G Horeczko
Settlement of fouling organisms on CCA-treated Scots pine in the marine environment
1997 - IRG/WP 97-50094
As part of an EU project to investigate the effects of CCA loading on non-target marine fouling animals, exposure panels of Scots pine treated to 12, 24 and 48 kgm-3 CCA and untreated controls were submerged at seven coastal sites (Portsmouth, UK: Kristineberg, Sweden: La Tremblade (2 sites), France: Ria Formosa, Portugal: Sagres, Portugal: Athens, Greece). Inspections were made at 6 and 12 months...
C J Brown, R A Eaton
IRG/COIPM INTERNATIONAL MARINE TEST - to determine the effect of timber substrate on the effectiveness of water-borne salt preservatives in sea-water. Progress Report 3: Report of first inspection of samples at Lae, Papua New Guinea
1978 - IRG/WP 446
Samples for the international marine test were placed on frames numbered I to VII. Frames numbered VII of both CCA and CCB trials are being stored dry in the laboratory at F.P.R. & D.C. Frames I to VI of both trials were suspended in the sea at Lae Harbour (Morobe Province, Papua New Guinea) on 6th December 1977. The first inspection of the CCA trial was carried out on 8th June 1978, at which ...
S M Cragg, C R Levy
Destruction of two tropical timbers by marine borers and micro-organisms in Goa waters (India)
1992 - IRG/WP 92-4176
The paper deals with the pattern of microbial attack in relation to marine borer damage of test panels of African rosewood and Brazilian jackwood exposed in Goa waters (Western India) for a period of seven months. The degradation of wood cell walls in both the timber samples occurred due to infestation of soft-rot fungi and tunnelling bacteria. African rosewood, which was severely damaged by tered...
L N Santhakumaran, A P Singh
Lab and field test results for wood treated with polymeric alkylphenol polysulfide
2001 - IRG/WP 01-30268
A new wood preservative based on polymeric alkyphenol polysulfide (PXTS-A) is being evaluated in a series of laboratory and field tests and the results continue to show promise. A modified formulation (PXTS-B), which contains additives to reduce the viscosity, is being evaluated along with the original formulation. Soil block decay tests comparing PXTS-B with CCA-C indicate that PXTS-B is equally ...
J Goswami, A Abramson, R Buff, D D Nicholas, T Schultz
Observations on the destruction of fishing craft in India by marine wood-borers with special reference to the West Coast
1981 - IRG/WP 468
The paper highlights the economic importance of the destruction of fishing craft in India by marine wood-destroying agencies. The annual loss involved is to the extent of over 94 million rupees. Thirty-nine spectes and one variety of woodborer have so far been recorded from India, of which Bankia campanellata, Bankia carinata, Bankia rochi, Dicyathifer manni, Lyrodus pedicellatus, Teredo clappi, T...
L N Santhakumaran, J C Jain