Attractiveness of Sex Pheromone of the Large Black Chaefer, Holotrichia parallela (Motschulasky) (Coleoptera : Scarabaeidae), in Potato Field
2006
Choi, M.Y. (Honam Agricultural Research Institute, NICS, RDA, Iksan, Republic of Korea), E-mail: [email protected] | Paik, C.H. (Honam Agricultural Research Institute, NICS, RDA, Iksan, Republic of Korea) | Seo, H.Y. (Honam Agricultural Research Institute, NICS, RDA, Iksan, Republic of Korea) | Lee, G.H. (Yeongnam Agricultural Research Institute, NICS, RDA, Milyang, Republic of Korea) | Kim, J.D. (Honam Agricultural Research Institute, NICS, RDA, Iksan, Republic of Korea) | Roitberg, Bernard D. (Simon Fraser University, Burnaby, Canada) | Gries, Gerhard (Simon Fraser University, Burnaby, Canada)
Sex pheromone blends of large black chafer, Holotrichia parallela (Motschulasky), which consist of a major component L-isoleucine methyl ester (LIME) and a minor component (R)-(-)-linalool, showed different attractiveness depending on the mixing ratios of the two components in potato fields in South Korea. The best ratio for H. parallela attraction was 2.5:1 of LIME and (R)-(-)-linalool. The attraction ability of pheromone traps bated with 2.5:1 ratio did not drop up to 14m, but significantly decreased at 21m from H. parallela release point. Korean population of H. parallela showed almost same periodical activity to sex pheromone with that reported in Japan, which showing a circabidian periodicity of 48h cycle.
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