Evaluation of Applicability to Metofluthrin-based Termiticide for the Traditional Wooden Buildings

Abstract

In this study, we investigated the applicability of a termiticide based on metofluthrin for termite control on traditional wooden buildings. To evaluate their mortality, termites were exposed to the agent, diluted to various concentrations, for seven days; it was found that it had a sufficient insecticidal effect although there was a difference depending on the degree of agent dilution. Next, the effect on Dancheong, used in traditional wooden structures, was measured based on the color change according to the number of agent treatments. The results showed that only the color difference value of two pigments (i.e., Bun and Juhong) was measured as 3.0 or higher. However, there this varied according to the dilution ratio. Thus, it was found that most pigments had little effect on the color of Dancheong. Finally, the termiticidal efficacy of the agent when applied to wood was evaluated. We found that the specimens coated with 10-fold and 20-fold dilutions exhibited 2.83 and 6.28% mass loss, respectively. The 10-fold dilution satisfied the performance of termiticide as a mass loss of less than 3%. In conclusion, the metofluthrin-based agent used in this study has little effect on various Dancheong pigments and has a termiticidal effect against termites; it is therefore suggested that it may be used in preserving traditional wooden cultural properties in Korea.

A Study on the Applicability of Wood Preservatives to Wooden Cultural Properties by Aging Treatment

“…목재 건축물에 사용되어 오던 목재 보존제는 방미, 방 충, 방부 효과를 가지고 있으며 인체에 해가 없는 성분으 로 구성되어 사용할 수 있지만 목조문화재에 대해서는 추 가적인 분석을 통해 허가된 제품이 한정되어 있다 (Yoon et al, 2021). 문화재의 특성상 약품 및 화학 성분을 처리 하는 경우 다른 재질에 대한 안정성 평가를 통해 변화가 없음을 확인하여야 한다 (Jang et al, 2014).…”

Changes over time in activity patterns of Reticulitermes speratus (Blattodea: Rhinotermitidae) fed fast- or slow-acting termiticides

“…Laboratory studies investigating insecticidal effects have primarily used the Petri dish method because it is convenient for visually observing the insecticidal effects of the termiticides (Chouvenc et al 2011), and this method has been selected for evaluating termiticides' ability to eliminate R. speratus regardless of whether the termiticide was fastor slow-acting (Kim et al 2010;Kim and Chung 2017;Im and Chung 2019;Yoon et al 2021;. The JIS K 1571 Petri dish method (The subterranean termite standard test method of the Japan Standards Association, JSA) is mainly used to evaluate termiticides in Korea and Japan (Japanese industrial standard association, 2010).…”