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Glass splinters as physical termite barriers: Optimized material properties in use with and without insecticidal pretreatment minimizes environmental contaminations
1991 - IRG/WP 1476
The major advantage of physically acting barriers against termites using sand or cinder is to be impenetrable for a number of termite species by showing environmental compatibility in a high degree. The major disadvantage of these barriers is the ability of termites to build galleries over them. Glass or glass-like materials are showing optimum material properties: crushed to a particle size from ...
M Pallaske, A Igarashi


An anti-termite formulation for soil treatment with natural products and its efficacy against Coptotermes formosanus Shiraki
2003 - IRG/WP 03-30319
An anti-termite formulation of an environmental conservation type for soil treatment was developed. The formulation was composed of decanoic acid (n-capric acid, an fatty acid derived from coconut oil with ten carbons) as an active ingredient and other natural products. Experiments to examine the efficacy of the formulation against Coptotermes formosanus Shiraki were conducted at the termite field...
S Yoshida, T Nakagaki, A Igarashi, A Enoki


Analysis on dynamics of basidiomycetes in decayed wood by a method using non-specific amplification of DNA
2009 - IRG/WP 09-20426
A combination of non-specific amplification of DNA by Phi29 DNA polymerase and specific amplification of the internal transcribed spacer (ITS) region of ribosomal DNA (rDNA) by polymerase chain reaction (PCR) was applied to elucidate the ratio of basidiomycete species inhabiting decayed wood from an outdoor bench. After more than 8 hours incubation with Phi29 DNA polymerase, concentration of DNA ...
T Wada, K Igarashi, M Samejima


Identification of soft-rot fungi existed in the samples from the galley excavated at Yenikapi
2014 - IRG/WP 14-10833
The shipwrecks of the Middle Byzantine period were excavated during the construction of the Marmaray railway and metro station in Yenikapı between 2004 and 2012. This has become the largest investigations because of the size and the number of the shipwrecks and its associated artifacts. In the previous report, the electron micrographs of the samples revealed that a wide range in the degree of...
T Wada, C Köse, K Igarashi


Improvement of analytical methods of wood preservatives and its validation with collaborative testing
2019 - IRG/WP 19-20655
This discussion paper presents on-going collaborative test of analytical methods of wood preservatives according to the standardization process of Japan Agricultural Standard (JAS) by the Ministry of Agriculture, Forestry and Fisheries (MAFF). Food and Agricultural Materials Inspection Center (FAMIC) in close cooperated organization with the MAFF, has wide range of tasks about inspections and anal...
T Miyauchi, K Yamamoto, N Shota, Y Akabori, M Ikeda, J Eisawa, K Kambara, T Osawa, C Igarashi, Y Baba, W Ohmura, M Shimizu, M Samejima