title: Candidate Attractant Pheromones of Two Potentially Invasive Asian Cerambycid Species in the Genus Xylotrechus.
abstract: Research during the 1980s showed that male Xylotrechus pyrrhoderus Bates (Coleoptera: Cerambycidae), a vineyard pest, produce (2S,3S)-2,3-octanediol and (S)-2-hydroxyoctan-3-one as possible pheromone components, but to our knowledge, field tests were not carried out. We confirmed that at least female X. pyrrhoderus were attracted by a 1:1 blend of these two compounds in field trials in Japan. Furthermore, more than 200 males and females of the congener Xylotrechus rufilius Bates were attracted by racemic 2-hydroxyoctan-3-one, and inhibited by syn-2,3-octanediol. Adult X. rufilius recently were intercepted in a shipment from China entering Baltimore, Maryland, raising concerns that this polyphagous species could establish in North America. Our results suggest that traps baited with 2-hydroxyoctan-3-one would be a valuable tool to assess whether X. rufilius has indeed become established, and to monitor for future introductions of X. rufilius.
authors.affiliation: Shimane Agricultural Technology Center, 2440 Ashiwata-cho, Izumo, Shimane 693-0035, Japan. narai-yutaka@pref.shimane.lg.jp.
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Narai
authors.affiliation: Department of Entomology, University of California, Riverside, CA 92521.
authors.forename: Yunfan
authors.initials: Y
authors.lastname: Zou
authors.affiliation: Graduate School of Horticulture, Chiba University, Matsudo, Chiba 271-8510, Japan.
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Nakamuta
authors.affiliation: Department of Entomology, University of Illinois at Urbana-Champaign, Urbana, IL 61801.
authors.forename: Judith A
authors.initials: JA
authors.lastname: Mongold-Diers
authors.affiliation: Department of Entomology, University of Illinois at Urbana-Champaign, Urbana, IL 61801.
authors.forename: Lawrence M
authors.initials: LM
authors.lastname: Hanks
authors.affiliation: Department of Entomology, University of California, Riverside, CA 92521.
authors.forename: Jocelyn G
authors.initials: JG
authors.lastname: Millar
mesh_terms: D000818:Animals; D001517:Coleoptera / Q000502:physiology*; D005260:Female; D007300:Insect Control / Q000379:methods*; D058865:Introduced Species; D007564:Japan; D008297:Male; D010675:Pheromones / Q000378:metabolism*; D013045:Species Specificity
chemical_list: D010675:Pheromones; C010411:insect attractants
keywords: 2,3-octanediol; 2-hydroxyoctan-3-one; Cerambycidae; chemical ecology; longhorned beetle; quarantine