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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. if their existence in - or absence from - the southern oceans is to be resolved. The questions posed could be relevant to the wood treating industry because of the indicated capacity of Limnoria lignorum, at least, to attack some treated wood.
J E Barnacle, L J Cookson


Dominant genera of fungi isolated from the surfaces of Sugi (Cryptomeria japonica D. Don) heartwood lumbers exposed at six test sites from northern to southern regions of Japanese islands
1999 - IRG/WP 99-10304
The surfaces of wood materials are disintegrated not only by sunlight and rainwater but also by microbes when exposed above ground condition. This paper deals with the investigation of fungi isolated from the surfaces of Sugi heartwood lumbers (W100 by T10 by L300 mm) exposed at an angle of 45° without ground contact for 16 months at the six test sites from northern to southern regions of Japan. The parasites were collected from the surface using the Sellotape. Isolation medium used was PDA including 100 ppm tetracycline-hydrochloride to suppress the growth of bacteria. Identifications were microscopically conducted using a slide culture technique. Dominant genera isolated were Aureobasidium and Nigrospora regardless of the test site as well as climatic condition.
S Doi, M Mori, M Kiguchi, Y Imamura, M Hasegawa, S Morita, S Nakamra, Y Kadegaru


Cryptotermes brevis - a silent earthquake for the wood structures in a World Heritage city in the Azores Islands
2016 - IRG/WP 16-50316
In the Azores archipelago the exotic drywood termite Cryptotermes brevis, detected in early 2000’s, is destroying the wood structures of the typical buildings and is already considered the main urban pest in these islands. This work aims to show the spread evolution of this pest along the last six years in the first Portuguese city classified as world heritage by UNESCO, Angra do Heroísmo. For six years, several buildings were monitored, using traps with glue to catch the alates (flying individuals), during the swarm season that occurs, normally, from the late spring until the end of summer. The number of captured individuals was used to determine the density per building. This data was analysed with a GIS in order to build risk maps of the termite spread in space along time. The results clearly indicate that the pest species is expanding. The city centre is no longer the only affected area. The percentage of buildings that are affected or in risk to be affected is very high in the entire city. Traditional construction, with timber load bearing structures, is being replaced by metal or other materials. There is still no Integrated Urban Pest Management implemented in the region or in the city. Therefore, with time, timber structures might become restricted to exist only in buildings like museums, churches or palaces.
O Guerreiro, P A V Borges, L Nunes