Abstract
The feasibility of mating disruption with synthetic sex pheromone for the control of the white grub beetle Dasylepida ishigakiensis (Coleoptera: Scarabaeidae) was examined by permeating sugarcane fields with a racemic mixture of 2-butanol (rac-2B) released from polyethylene-tube dispensers on Miyako Island, Japan in 2011. An application of rac-2B released from 10,000 tube dispensers into 3,200 m2 sugarcane fields significantly reduced the mating rate of feral females and catches of feral males with R2B-baited traps compared with the results from untreated sugarcane fields. The larval density for the treated fields was found to be nearly zero in the following winter when the corresponding figure for untreated fields was high (1.73 and 2.33/40 × 40 cm quadrat). These results clearly show that the mating disruption technique using rac-2B could be highly promising for the control of D. ishigakiensis in sugarcane fields.
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Acknowledgments
This work was partly supported by research and development projects for application in promoting new policies in agriculture, forestry and fisheries (No. 23021). We thank Itaru Shimoji, Kounosuke Degi and Hiroaki Oroku, of the Miyakojima Branch of OPARC, Ayako Yamaguchi and Yuko Shimizu of the Miyako Branch Office of Okinawa Prefectural Plant Protection Center, Yusuke Matayoshi, and Tsutomu Tokeshi of the Okinawa Prefectural Miyako Agriculture, Forestry and Fisheries Promotion Center, Hiroaki Sunagawa of JA Okinawa Miyako Branch, Yasushi Taira of Miyakojima City, and Junko Ikeda for their assistance with the field experiments. We also thank Takashi Kuriwada of the Kagoshima University, for his statistical support.
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Arakaki, N., Hokama, Y., Nagayama, A. et al. Mating disruption for control of the white grub beetle Dasylepida ishigakiensis (Coleoptera: Scarabaeidae) with synthetic sex pheromone in sugarcane fields. Appl Entomol Zool 48, 441–446 (2013). https://doi.org/10.1007/s13355-013-0202-6
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DOI: https://doi.org/10.1007/s13355-013-0202-6