Your search resulted in 1904 documents. Displaying 25 entries per page.
Termite resistance of wood modified with short- and long-chain siloxanes
2014 - IRG/WP 14-40660
…sylvestris L.) sapwood specimens modified with short- and long-chain amino-functional siloxane emulsions were exposed to subterranean termites (Reticulitermes flavipes Kollar). Laboratory choice and no-choice tests following the standard EN 117 (2013) were conducted for 8 weeks in order to evaluate the influence…
P Gascón-Garrido, M-F Thévenon, H Militz, C Mai
Eastern redcedar included sapwood: Resistance to mold and termites under laboratory conditions
2012 - IRG/WP 12-10765
…manufacturers. In this study, sapwood, included sapwood and heartwood samples from five eastern redcedar trees were exposed to mold fungi or to subterranean termites in a no-choice feeding test. Extractives content was also measured. The extractive content of sapwood and included sapwood were equivalent. Included…
C Köse, A M Taylor
Laboratory and Field evaluation on Natural Resistance and Feeding Preference of Different Wood Species to Subterranean Termites (Isoptera: Rhinotermitidae, Termitidae) in Pakistan
2012 - IRG/WP 12-10769
The resistance of twenty four different woods to attack and damage by subterranean termite species Heterotermes indicola (Wasmann) and Coptotermes heimi (Wasmann) was evaluated by choice and no choic in laboratory and field trials. Mean wood mass loss was calculated for both laboratory and field trials results…
S A Malik; F Manzoor, B M Ahmed (Shiday)
First report on the termiticidal activity of extracts of Annona squamosa (Annonaceae) seeds and on its active constituent squamocins
2012 - IRG/WP 12-30605
Termites inflict severe damage on wood commodities and impede usage of several forest species. The biological metabolites could potentially replace synthetic termiticidal products which are becoming more restricted to use. Annona squamosa is well known for its edible fruits - tropical custard apple.…
T S Djenontin, N Amusant, P H Ducrot, D C K Sohounhloué, D Pioch
Above ground testing at tropical test sites, what have we learned?
2011 - IRG/WP 11-20473
Three different above ground test methods have been utilized at a selection of five tropical and sub-tropical test sites with a variety of treated and untreated material. The results show that a multi-site approach to above ground field tests presents the opportunity for exposure to…
A Preston, A Zahora, Y Cabrera, L Jin, C Schauwecker, P Walcheski
Laboratory study of fipronil baits against Reticulitermes grassei (Isoptera: Rhinotermitidae)
2010 - IRG/WP 10-30553
…in this paper their possible use as bait has been tested. Their efficacy with Reticulitermes grassei Clément in feed forced and feed choice tests has been analyzed, evaluating the mortality caused by administration of fipronil at 1 and 10 ppm (wt/wt). Our results show that 90% mortality is achieved at 6…
M Gaju, L Moyano, E Alcaide, C Patiño, J Diz, L Nunes, C Bach, R Molero
Effectiveness of sol-gel treatments coupled with copper and boron against subterranean termites
2009 - IRG/WP 09-30493
…Nevertheless, if some of these active ingredients and compounds are not fixed into wood by chemical reactions, they can be easily leached out by water. To overcome this limitation, a system based on silica sol-gel material starting from alkoxysilanes has been functionalized with organic groups having copper…
E Feci, L Nunes, S Palanti, S Duarte, G Predieri, F Vignali
Potential of antifungal and antitermitic activity of several essential oils
2009 - IRG/WP 09-30515
…biological activity. This paper described the antitermitic and antifungal activity of twenty four essential oils from different plant species. The termicidal activity was carried out with a no-choice test with impregnated filter papers at several concentrations. Screening tests with mycelium of basidiomycete with…
N Amusant, M-F Thévenon, N Leménager, E Wozniak
A hypothesis on a second non-biocidal property of wood extractives, in addition to toxicity, that affects termite behavior and mortality
2008 - IRG/WP 08-10638
…extractives affect termite behavior, the exact cause and relationship between total extractives, extractive types, and termite resistance remains unclear. Generally, researchers have proposed that the extractives are toxic and/or repel termites. We propose, based on the well known fact that many extractives…
T P Schultz, K Ragon, D D Nicholas
Utilizing Cypress to improve the decay and termite resistance of OSB panels
2008 - IRG/WP 08-10658
OSB panels were manufactured with mixture of pine and cypress heartwood and lignin and tannin based resins in order to propose an eco-friendly wood composite. The resistance of OSB panels was tested against Reticulitermes santonensis according to the EN 118 and EN 117 standards and field tests methods. OSB…
N Amusant, O Arnould, A Depres, R H Mansouris, T Pizzi, C Baudassé
Wood Protection by Commercial Silver Formulations against Eastern Subterranean Termites
2007 - IRG/WP 07-30422
…termite damage by Eastern subterranean termites in a no-choice laboratory test. Five commercial products were tested in order to explore a broad range of formulation and silver forms: colloidal, ionic and nano-particles. Southern pine wood blocks were dip treated in each solution for 30 seconds, dried and…
F Green III, R A Arango
Termite Response to Oil-Heat-Treated Norway spruce, Scots Pine and Eucalyptus Wood
2006 - IRG/WP 06-20325
…spruce (Picea abies L.), Scots pine (Pinus sylvestris L.) and eucalyptus (Eucalyptus globulus Labill) wood, with a particular interest in the development of simple methods adequate to study the resistence of these materials to termite attack. Small test specimens (30 x 10 x 10 mm) were exposed to the termites in a…
L Nunes, T Nobre, C Welzbacher, A O Rapp
Natural durability of some commercial timbers of Sarawak, Malaysia in tropical marine environment
2005 - IRG/WP 05-10561
…of timber resources in Sarawak makes timber an ideal choice to be used for marine construction. The natural durability of the main commercial timber species of Sarawak in ground contact is well established but the same is not available for marine environment.
This study was conducted to assess the natural…
K Jenang, Wang Choon Ling
Evaluating the natural durability of native and tropical wood species against Reticulitermes flavip
2004 - IRG/WP 04-10539
…has been formulated to replace CCA for decking and in-ground applications but there is no guarantee that these preservatives represent a permanent solution to all related problems. Therefore, it is still necessary to evaluate alternative treatments, as well as naturally durable wood species, in order to…
R A Arango, F Green III, K Hintz, R B Miller
Effect of extractive fractions of Thuja plicata and Chamaecyparis nootkatensis heartwood on Coptotermes formosanus
2004 - IRG/WP 04-10535
…to attack by termites due to the presence of toxic and/or repellent extractives, but the role of individual extractives in termite inhibition is poorly understood. Developing a better understanding of which extractives are most effective against termites may be useful for the identification of improved…
A Taylor, B L Gartner, J J Morrell, K Tsunoda
Laboratory Evaluation of the Formosan Subterranean Termite Resistance of Borate-treated Rubberwood Chipboard
2004 - IRG/WP 04-30359
Both no-choice and two-choice 4-week AWPA laboratory tests were performed to evaluate the resistance of borate-treated rubberwood (Hevea brasiliensis) chipboard prepared from a commercial mill run, against the Formosan subterranean termite Coptotermes formosanus.…
A H H Wong, J K Grace
Accidental mold/termite testing of high density fiberboard (HDF) treated with borates and N’N-naphthaloylhydroxylamine (NHA)
2003 - IRG/WP 03-10462
High density fibreboard (HDF) was made from beech and pine furnish (50:50) and treated with boric acid (0.1-3%), borax (0.1-3%) or N'-N-(1,8-naphthalyl) hydroxylamine (NHA) (0.1-1%) prior to gluing with urea formaldehyde (UF) resin in order to determine resistance to Eastern subterranean termites…
S N Kartal, H H Burdsall Jr, F Green III
The influence of fungal species and the level of decay on the mortality and feeding activity of adult Euophryum confine (Broun)
2002 - IRG/WP 02-10448
The mortality and feeding activity of adult Euophryum confine (Broun) (Coleoptera: Curculionidae) are used to establish the substrate conditions most suitable for their rearing. Weevils were allowed to feed on Pinus nigra (Arnold) sapwood blocks, either undecayed…
M Green, A J Pitman
The Biocidal Products Directive ( 98/8/EC ) - its consequences for the wood preservation industry
2001 - IRG/WP 01-50166-04
…have yet to declare the Competent Authority who will handle their legislation. The body text of the Directive cannot stand-alone and is dependent on ancillary regulations and the development of technical guidance for both the Competent Authorities in the Member States and also industry to understand their roles…
D Aston
Substrate preferences in adult Pselactus spadix (Herbst)
2000 - IRG/WP 00-10352
Adult preferences of P. spadix were tested in a series of olfactory and tactile choice tests. Tests employed pine and beech wood blocks, which were undecayed or decayed by soft rot fungi, wetted with seawater or freshwater and drilled or undrilled. Survival of individual adults on undecayed…
P Oevering, A J Pitman
Incorporating insect behaviour in standard tests of wood preservatives - A possible way to reduce pesticide loadings
2000 - IRG/WP 00-20190
…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 by placing them into or on to the material. The achieved…
H Hertel, R Plarre
Inhibition of termite damage by N'N-napthaloylhydroxyamine (NHA): Reticulotermes flavipes (Kollar) vs. Coptotermes formosanus Shiraki
2000 - IRG/WP 00-10354
…to protect southern yellow pine (SYP) from wood decay and termite damage comparable to CCA in field tests (Gulfport, MS) for two years (Crawford and Green, 1999). In a collaborative study, SYP wood blocks were vacuum treated with three concentrations of aqueous NHA and exposed in a no-choice test to Eastern…
F Green III, S T Lebow, T Yoshimura
Bioprocessing preservative-treated waste wood
2000 - IRG/WP 00-50145
…obtained from culture collections in the Mycology Center and Biodeterioration research unit at the USDA-FS Forest Products Laboratory (FPL), Madison, Wisconsin, and from FPL field sites. The 95 isolates had originally been taken from at least 66 sites from around the United States. Isolates were screened in a…
B Illman, V W Yang, L Ferge
Size of food resource determines brood placement in Reticulitermes flavipes (Isoptera: Rhinotermitidae)
2000 - IRG/WP 00-10351
Most species of subterranean termite house and care for larvae in specialised chambers or complex nurseries. In addition to these chambers, the genus Reticulitermes also keeps larvae at sites where foragers are feeding, a trait more commonly found in damp wood and dry wood termites. This phenomenon of…
M Lenz, B M Kard, J K Mauldin, T A Evans, J L Etheridge, H M Abbey
Soluble nutrient content in wood and its susceptibility to fungal discoloration and decay in above ground and ground tests
2000 - IRG/WP 00-10336
…in wood on its susceptibility to fungal discoloration and decay in various tests, which is important for the test methodology and standardisation. Seven tests were carried out including pure culture above and ground contact tests, above ground field test and laboratory ground contact tests. The samples…
O M Caballero, N Terziev