Sustainable management of wood-destroying insects with chemical-free starategies

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H04528
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Wood science
• Research Institution: Kyoto University
• Principal Investigator: Yoshimura Tsuyoshi 京都大学, 生存圏研究所, 教授 (40230809)
• Co-Investigator(Kenkyū-buntansha): 柳川 綾 京都大学, 生存圏研究所, 助教 (70628700)
• Research Collaborator: IIDA Takao 滋賀環境衛生(株), 代表取締役 ; FUJIMOTO Izumi 京都大学, 生存圏研究所, 研究員 ; KARTIKA Titik 京都大学, 大学院農学研究科 ; CHOI Baek-Yong 京都大学, 大学院農学研究科 ; GUSWENRIVO Ikhsan 京都大学, 大学院農学研究科 ; NAKAI Kazushi 京都大学, 大学院農学研究科
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 木材食害性昆虫 / ケミカルフリ－工法 / シロアリ / ナガシンクイムシ / シバンムシ / ヒラタキクイムシ / 高周波 / 天敵微生物

Outline of Final Research Achievements

The aim of this research was to develop chemical-free strategires against wood-destroying insects, termites and beetles.
The high-frequecy heating treatment (HF-treatment), the freezing treatment with dry-ice (FD-treatment), and the bilological treatment with parasitic fungi(BF-treatment) were investigated against wood-destroying insects: Incisitermes minor, Lyctus africanus, Heterobostrychus aequalis and Nicobium hirtum.
We have found the optimal treating conditons for HF-treatment to eradicate the test insects: 20-sec-single treament for <20mm-thick lumbers/plywood, and 20-sec-triple treatments or 10-sec-10 times treatments for 50mm-thick lumbers. The FD-treatment was also applicable to eradicate the dry-wood termite inside the 100 mm-thick lumbers with 1.2 kg dry-ice. Two ectoparasitic fungi were newly recorded from Reticulitermes spp. all through Japan, and the multiple-nested PCR method for detecting the fungal infestation was successfully developed.

Free Research Field

木質劣化生物学