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    Fouling and boring organisms that deteriorate various European and tropical woods at Turkish seas
    (Academic Journals, 2010) Şen, Selim; Sivrikaya, Hüseyin; Yalçın, Mesut; Bakır, Ahmet Kerem; Öztürk, Bilal
    This study aims to investigate the diversity of fouling and boring organisms damaging wood material at Turkish coasts. Trials were carried out at six harbour sites throughout the seas surrounding Turkey. Various Euopean and tropical wood samples were hanged down at a depth of six meters in the sea for a period of one year. Identification of the organisms obtained from wood panels revealed the presence of five wood borer and 26 fouling species. Iskenderun harbour had the highest boring organism diversity (five species) and it was followed by Trabzon and Finike harbours (three species) and Bandirma, Eregli and Alacati harbours (two species). The two molluscan boring species, Teredo navalis and Lyrodus pedicellatus were observed at all harbour sites, but Nototeredo norvegica was at Trabzon and Iskenderun harbours only. Bankia carinata was obtained only at Iskenderun harbour and the crustacean wood borer Limnoria tripunctata was found at Finike and Iskenderun harbours. All native tree species, except for the olive, were significantly damaged by fouling and boring organisms.
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    Natural durability of heartwoods from European and tropical Africa trees exposed to marine conditions
    (Academic Journals, 2009) Şen, Selim; Sivrikaya, Hüseyin; Yalçın, Mesut
    Marine durability of heartwoods obtained from tropical African and European species against marine borer attacks in underwater exposure in Turkish coasts was investigated. Test hangers including wood species of 18 European and 15 African wood species were fastened to test area and exposed at a depth of 6 m along the coasts of seas (East and West Black Sea, Marmara Sea, Aegean, East and West coasts of mediterranean in Turkey seashore). Most European wood samples suffered severe attacks from boring organisms. On the other hand, some tropical African species (Lophira alata, Nauclea diderichii, Tieghemella heckelii, Chlorophora excelsa, Distemonanthus benthamianus, Pterocarpus soyauxii and Millettia laurentii) showed high natural marine durability in all seas, while the rest of them were only slightly degraded by boring organisms. The test areas in Trabzon, Eregli and iskenderun cities which are industrial harbours were shown to have the highest boring attacks. Other test areas, Bandirma, Alacati and Finike which are yacht marinas were shown to have little boring and fouling attacks.
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    TERMITICIDAL PROPERTIES OF SOME WOOD AND BARK EXTRACTS USED AS WOOD PRESERVATIVES
    (North Carolina State Univ Dept Wood & Paper Sci, 2012) Taşçıoğlu, Cihat; Yalçın, Mesut; de Troya, Teresa; Sivrikaya, Hüseyin
    The feasibility of using naturally extracted solutions as wood preservative chemical was tested. Extracts extracted from mimosa (Acacia mollissima Willd.), quebracho (Shinopsis lorentzii Griseb.), and Pinus brutia Ten. bark were used to treat sapwood of Scotch pine (Pinus sylvestris L.), beech (Fagus orientalis L.), and poplar (Populus tremula L.) at two different retention levels (%6 and %12 weight/weight) against the subterranean termite Reticulitermes grassei Clement (Blattodea: Rhinotermitidae). The lowest mass loss and highest termite mortality rates were recorded for mimosa and quebracho extract treated woods at the 12% concentration level. Pine bark extract seemed to be ineffective as a wood preservative chemical even at the highest retention level. The results suggest that mimosa and quebracho extracts can be utilized as an environmentally-sound alternative wood preservative chemicals for indoor applications against Reticulitermes grassei.