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Kenji Shimomuraa,Nobuhiro Suzuki,Shunji Hattori 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.2
The repellent activities of one hot thermal-sense compound, vanillyl butyl ether (VBE), and two cool thermalsense compounds, menthoxypropanediol (MPD) and (−)-isopulegol (IPG), against two stored product insects, Tribolium confusum and Liposcelis bostrychophila, were investigated. Such thermal-sense compounds affect mammals through transient receptor potential (TRP) channels, and both types of agonists (VBE and menthol) exhibited mutually inhibitory effects on mammalian TRPV1 and TRPM8 channels. Each compound exhibited repellent activity against both T. confusum and L. bostrychophila in a dose-dependent manner. Furthermore, synergistic effects were observed between VBE and MPD or IPG. The composition of TRP channels is different between mammals and insects. These results suggest that the use of thermal-sense compounds might serve as an alternative to essential oils in stored products protection.