Abstract
Sex-pheromone traps baited with a rubber-septum containing 14-methyl-1-octadecene are used to monitor the emergence of adult peach leafminer moths, Lyonetia clerkella (L.) (Lepidoptera: Lyonetiidae), in peach orchards. This compound is also used as a mating disrupter; large amounts of synthetic 14-methyl-1-octadecene can successfully interfere with the mate-finding behavior of the male moths. In peach orchards treated with mating disrupters, however, conventional rubber-septum lures are ineffective, because mating disrupters interfere with male orientation. In this work we demonstrated that a commercially-available mating disrupter, Confuser® MM, can be used as an attractant in orchards treated with mating disrupters. In an indoor flight tunnel experiment, 33–42 % of males pre-exposed to a mating disrupter responded to one to ten Confuser® MM dispensers whereas only 8 % responded to a conventional lure made from a rubber-septum impregnated with a relatively small amount of the sex pheromone. The number of male moths captured by traps baited with five dispensers of Confuser® MM in orchards treated with mating disrupters was positively correlated with the number of males trapped by use of a conventional rubber-septum lure in untreated orchards. This suggests that Confuser® MM can be used as an attractant for monitoring emergence time and relative abundance in an orchard being treated with a mating disrupter.
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Acknowledgments
We thank K. Uchida and T. Sasawaki for their preliminary work and helpful comments on this study, K. Takita for collection of the peach leafminer moth, and F. Mochizuki and K. Nagata for providing information about amounts of sex pheromone used to impregnate the Confuser® MM and the rubber-septum lure. This study was supported by the project “Revision of forecasting systems for crop pests and diseases”, sponsored by the Ministry of Agriculture, Forestry and Fisheries of Japan.
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Nakano, R., Ihara, F., Mishiro, K. et al. Confuser® MM can be used as an attractant to enable monitoring of the peach leafminer moth, Lyonetia clerkella (Lepidoptera: Lyonetiidae), in peach orchards treated with a mating disrupter. Appl Entomol Zool 49, 505–510 (2014). https://doi.org/10.1007/s13355-014-0277-8
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DOI: https://doi.org/10.1007/s13355-014-0277-8