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Microcapsule formulation of fenitrothion as a soil termiticide
1991 - IRG/WP 1478
The efficacy and the mode of action of a microcapsule formulation of fenitrothion against Coptotermes formosanus Shiraki were investigated. The physicochemical property that this formulation does not allow the active ingredient to diffuse through the capsule wall contributed to a long lasting efficacy and safety for the men spraying. The residual effect of the fenitrothion microcapsule in soil was...
H Teshima, T Itoh, Y Abe

Ekki heartwood - is “Durable”
2002 - IRG/WP 02-10444
Severe decay damages of bridges made of ekki (Lophira alata Banks) wood which is classified as a durable species in the EN 350:2 as already reported at the 31 IRG annual meeting. This paper deals with results of long-term decay tests of ekki heartwood specimens using 3 isolates (Loweporus tephroporus 2 strains and a fungus of other sp. from damaged ekki bridges) and Trametes versicolor as a refere...
S Doi, R Itoh, S Horisawa

Underwater shock treatment for improvement of penetration of wood
2006 - IRG/WP 06-40325
Many of conifers including Beimatsu (Pseudotsuga menziesii Franco; Dougras fir, Oregon pine), Akamatsu (Pinus densiflora Sieb. et Zucc.; Japanese red pine), Dafurica Karamatsu (Larix gmelinii Gordon; Dahurica larch) and Karamatsu (Larix leptolepis GORDON; Japanese larch) generally contains the high moisture content. Although subjected to the drying process, it is difficult to be dried up completel...
S Itoh, H Maehara, K Tanaka, T Echigo, K Morioka, E Shirai, K Nishimoto