IRG Documents Database and Compendium


Search and Download IRG Documents:



Between and , sort by


Displaying your search results

Your search resulted in 36 documents. Displaying 25 entries per page.


Insect resistance of preservative treated tropical plywood against Lyctus
1990 - IRG/WP 1453
Seven plywood types composed of tropical wood species, vulnerable to Lyctus, were treated with various commercial water-borne and oil-borne preservatives. A wide range of preservative retentions was obtained by treating boards with dip treatment, steeping, double-vacuum and vacuum-pressure impregnations. Selected samples were subsequently tested for their insect resistance against Lyctus africanus...
J Van Acker, M Stevens, M Pallaske


Water-based wood preservatives for curative treatement of insect-infested spruce constructions
1998 - IRG/WP 98-30171
On laying down sanitation measures for wooden constructions infested by wood boring insects, we must take into account static risks for the construction - and, thus, for the security of the user - as well as risks for humans and environment due to the chemical preservative compounds of the treated wood. Analyses on many roof constructions made with spruce (Picea abies L.) have revealed that Hylot...
E Graf, P Manser, B Lanz


Surface Barriers for Protection of Culture and Heritage Wooden Objects from Insect Attack
2004 - IRG/WP 04-40286
Anoxic treatment is an environment friendly procedure for eradication of wood boring insects in wooden objects of cultural and historical heritage. However, after the anoxic treatment, wooden antiques remain susceptible to further insect attacks. Possible protection against insects could be provided by the so-called post-repression protective barriers. Potential coating materials for such barriers...
M Petric, M Pavlic, B Kricej, M Humar, F Pohleven


Rapport sur l'activité du CEN/TC 38
1983 - IRG/WP 2204
M Pottevin


Rapport sur l'activité du Comité CEN/TC 38 "Méthodes d'essais des produits de préservation des bois" du Comité Européen de Normalisation (CEN)
1986 - IRG/WP 2266
G Castan


Rapport sur l'activité du CEN/TC 38 "Méthodes d'essais des produits de préservation du bois"
1982 - IRG/WP 2188
M Pottevin


On the Influence of Wood Destroying Fungi on the Feeding Intensity of Termites
2017 - IRG/WP 17-10893
The baiting and feeding stimulating effect of wood attacked by fungal isolates of the species Coniophora, Lentinus, Poria and Gloeophyllum on termites Reticulitermes santonensis is examined. There are significant relationships between the activity of fungal isolates and the feeding behaviour of termites. The most active isolates can be used for increase the attractiveness of wood to wood-destroyin...
W Unger, T L Woods


Insect transmission of fungal sapstain to freshly sawn unseasoned softwood lumber
1994 - IRG/WP 94-20025
Chemical dip treatments were used to investigate micro-arthropod transmission of fungal sapstain to unseasoned pine sapwood boards. Saptain, mould and basidiomycete defacement of chemically treated sawn boards of Corsican pine was recorded during a 14 week field trial. Boards were treated with either a fungicide, an insecticide/acaricide, a combination of the fungicide with the insecticide/acarici...
M A Powell, R A Eaton, J F Webber


Incorporating insect behaviour in standard tests of wood preservatives - A possible way to reduce pesticide loadings
2000 - IRG/WP 00-20190
The application of wood preservatives to protect timber against insect infestation is common practice world wide. The effectiveness of wood protecting insecticides is usually determined in various standard tests. Depending on the target pest species and the test method, larvae of different developmental stages and sizes or adult insects are exposed artificially to the insecticide-treated commodity...
H Hertel, R Plarre


Wood preservation in Kenya
2000 - IRG/WP 00-40191
Current research on wood preservation in Kenya is mainly on the development of biological control of wood-destroying termite species, using mycoinsecticides. The major research institutions include the Kenya Agricultural Research Institute (KARI), Kenya Forestry Research Institute (KEFRI), Moi University and the International Centre for Insect Physiology (ICIPE). Training institutions include Fore...
G Ochiel


Effects of methoprene on Coptotermes formosanus (Isoptera: Rhinotermitidae)
1987 - IRG/WP 1322
Methoprene affected differentiation and survival of Coptotermes formosanus Shiraki in laboratory studies. At 5, 9, 13, and 17 weeks, superfluous intercastes and presoldiers were produced when termites were allowed to feed on concentrations of 1,000 and 2,000 ppm methoprene in wood blocks. Colony numbers were significantly reduced after 13 and 17 weeks of exposure to the insect growth regulator. Te...
S C Jones


The Use of Insect Hormones as Non-Neurotoxic Insecticides in Wood Preservatives
2002 - IRG/WP 02-30277
The ecdyson and juvenile hormone analogues show a clear difference in their effect on the house borer, Hylotrupes bajulus. In the tested dosages, the ecdyson analogues have only a slight ovicidal effect but a very clear effect on old larvae. With a dosage of 1250 mg/m², Halofenozid achieved 100% mortality after 27 weeks and Tebufenozid after 40 weeks. The two juvenile hormone analogues, Fenoxy...
E Graf, M Barkhoff, R Hamberg, H Büttner, M Pallaske


Surface Barriers for Protection of Culture and Heritage Wooden Objects from Insect Attack
2004 - IRG/WP 04-20286
Anoxic treatment is an environment friendly procedure for eradication of wood boring insects in wooden objects of cultural and historical heritage. However, after the anoxic treatment, wooden antiques remain susceptible to further insect attacks. Possible protection against insects could be provided by the so-called post-repression protective barriers. Potential coating materials for such barriers...
M Petric, M Pavlic, B Kricej, M Humar, F Pohleven


Options for termite management using the insect pathogenic fungus Metarhizium anisopliae
1996 - IRG/WP 96-10142
The insect pathogenic hyphomycete fungus Metarhizium anisopliae (Metschnikoff) Sorokin is promising as a biological insecticide for many species of subterranean termites. In Australia, a survey of termite mounds and feeding sites using a selective medium showed that this fungus is widespread but rarely causes mortality of termites under natural conditions. One isolate, codenamed FI610, has been se...
R J Milner, J A Staples, M Lenz


Exotic timber insect species intercepted in the UK since 1945
1978 - IRG/WP 182
Since the formation of an entomology section at the former Forest Products Laboratory, Princes Risborough, the Laboratory has been called upon to identify and comment upon a wide range of insects and insect damage in imported timber. Very often only the damage remains and frequently dead insects are associated with it, but on other occasions living exotic wood-boring insects enter the UK. Followin...
J M Baker, R W Berry


The impact of global warming on the UK distribution of house longhorn beetle Hylotrupes bajulus (L)
2001 - IRG/WP 01-10414
This paper reviews the effects of global warming on insect populations and distribution. The affects of global warming on the spread of Hylotrupes is predicted through a review of research related to the influence of temperature on its life-cycle and flight. Records of Hylotrupes distribution were obtained from published surveys, entomologists and museum collections and were plotted for the UK. Th...
P Oevering, A J Pitman


The WOODCARE project: Development of detection methods for Death watch beetle larvae and fungal decay
1999 - IRG/WP 99-20172
Woodcare was a European project coordinated by English Heritage. The aim of the research was to develop more targeted and more environmentally friendly treatment methods for Death watch beetle infections in Oak constructions of historical buildings. TNO has developed two new methods for fast and reliable detection of Death watch beetle larvae and related fungal decay in Oak. The problem with Death...
P Esser, P Van Staalduinen, A C Tas


Make ready of a detection system for insect attack by acoustical method
1996 - IRG/WP 96-10183
A contract CRAFT of European research allowed to build a detector prototype able to diagnose on site the presence of Hylotrupes bajulus and termites, even during the first stages of infestation when no sign of activity is visible. Based on non destructive control technics, the device picks up the acoustical waves emitted by the insects in the wood fibers. The amplification and the filtering of the...
M Hyvernaud, F Wiest, M-M Serment, M Angulo, O Winkel


Termatrac: microwave technology for non-destructive detection of insect pests in timber
2002 - IRG/WP 02-20253
Termatrac is a microwave instrument that has been developed in Australia to detect termite movement within timber and wall cavities. We present data from an investigation into the usefulness of the instrument in detecting drywood and subterranean termites in timber. The West Indian drywood termite Cryptotermes brevis (Walker) was detected in a wooden chair. The subterranean termites Coptotermes ac...
B C Peters, J W Creffield


FLUROX, a new breakthrough in insect control for wood preservation
1995 - IRG/WP 95-30079
FLUROX (flufenoxuron) is an acylurea insecticide which acts as a growth regulator in insects. FLUROX inhibits the production of chitin - the exoskeleton or 'skin' of the insect. When the exposed larva attempt to moult to its next stage of development, it is unable to produce a new skin and dies. FLUROX has been found to be extremely active against wood borers, when applied in a p...
A R Valcke, M Pallaske


Insect growth regulators: modes of action and mode of action-dependent peculiarities in the evaluation of the efficacy for their use in wood preservation
1997 - IRG/WP 97-30155
Up to now, the insecticides used in wood preservation are either of more or less non-specific mode of action - like boron - or of neurotoxic mode of action - like chlorinated hydrocarbons, carbamates and pyrethroids. The active ingredients actually used are primarily mirroring the progress in active ingredient research in plant protection. The methods of testing of the insecticidal efficacy of woo...
M Pallaske


On the possibilities of the use of juvenile hormone in wood protection
1976 - IRG/WP 363
The annual world-wide extent of losses caused by wood-destroying insects in timber in buildings and timberyards is very difficult to estimate. In general exact values are only known in cases of claims for damages from insurance companies or in litigation. At present the best known wood destroying insects in Switzerland are the house longhorn beetle (Hylotrupes bajulus) and the common furniture bee...
P Tscholl


Surface Barriers for Protection of Culture and Heritage Wooden Objects from Insect Attack
2004 - IRG/WP 04-40286
Anoxic treatment is an environment friendly procedure for eradication of wood boring insects in wooden objects of cultural and historical heritage. However, after the anoxic treatment, wooden antiques remain susceptible to further insect attacks. Possible protection against insects could be provided by the so-called post-repression protective barriers. Potential coating materials for such barriers...
M Petric, M Pavlic, B Kricej, M Humar, F Pohleven


Field evaluation of several bait toxicants for subterranean termite control: A preliminary report
1988 - IRG/WP 1376
Since 1983, field studies have been conducted to evaluate the effectiveness of several bait toxicants in reducing subterranean termite populations at the Chipola Experimental Forest in Florida. Tests with fenoxycarb (Ro 13-5223), Ro 16-1295, and Avermectin B1 indicated that fenoxycarb showed the most promise. Large numbers of presoldiers and intercastes have continued to occur in plots treated wit...
S C Jones


FAROX, a novel insect growth regulator for use against wood-boring insects
1995 - IRG/WP 95-30080
The active ingredient in FAROX - fenoxycarb - is a novel insect growth regulator for preventive use against wood-boring insects (Hylotrupes, Anobium and Lyctus). FAROX has the same biological effect as a natural insect growth factor produced by the insect itself. FAROX is tailor-made for insect control; it attacks at the points where the insect should normally be changing its form and blocks these...
A R Valcke


Next Page