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Insects

Title:		Generic Pheromones Identified from Northern Hemisphere Cerambycidae (Coleoptera) Are Attractive to Native Longhorn Beetles from Central-Southern Chile
Author(s):		Curkovic T; Arraztio D; Huerta A; Rebolledo R; Cheuquel A; Contreras A; Millar JG;
Address:		"Facultad de Cs. Agronomicas, Universidad de Chile, Santiago P.O. Box 1004, Chile. Facultad de Cs. Forestales y de la Conservacion de la Naturaleza, Universidad de Chile, Santiago P.O. Box 9206, Chile. Facultad de Cs. Agricolas y Recursos Naturales, Universidad de La Frontera, Temuco P.O. Box 54-D, Chile. Department of Entomology, University of California, Riverside, CA 92506, USA"
Journal Title:		Insects
Year:		2022
Volume:		20221118
Issue:		11
Page Number:		-
DOI:		10.3390/insects13111067
ISSN/ISBN:		2075-4450 (Print) 2075-4450 (Electronic) 2075-4450 (Linking)
Abstract:		"We conducted field bioassays with several known cerambycid pheromones in two zones of central-southern Chile: (1) Las Trancas (Nuble region) and Conaripe (Los Rios region) (Study 1) and (2) Rucamanque and Maquehue (La Araucania region) (Study 2). Up to eight compounds were tested individually, including 3-hydroxy-2-hexanone, (2R*,3S*)- and (2R*,3R*)-2,3-hexanediol, fuscumol, fuscumol acetate, monochamol, 2-methylbutanol, and geranylacetone. Compounds were loaded in plastic sachets placed in either multiple funnel or cross-vane panel traps hung in trees in a randomized block design (n = 3 or 4). The number of treatments and bioassay periods varied depending on the study. A total of 578 specimens belonging to 11 native species were collected, with the three captured in the highest numbers being Eryphus laetus (292 specimens), Calydon submetallicum (n = 234), and Chenoderus testaceus (n = 20). The three species are of economic importance: E. laetus is considered a minor pest in apple orchards, and the other two species infest Nothophagus hosts, including some timber species. Traps baited with 3-hydroxy-2-hexanone collected significant numbers of both sexes of the two most abundant species, and this compound was the only treatment that attracted C. submetallicum. (2R*,3R*)- and (2R*,3S*)-2,3-Hexanediols were also significantly attractive to E. laetus. Our results suggested that 3-hydroxy-2-hexanone and 2,3-hexanediols, which are known pheromone components of cerambycid species worldwide, are also likely to be conserved aggregation pheromone components among some species in western South America"
Keywords:		"(2R*, 3R*)-2, 3-hexanediol (2R*, 3S*)-2, 3-hexanediol 3-hydroxy-2-hexanone Calydon submetallicum Chenoderus testaceus Eryphus laetus intercept traps;"
Notes:		"PubMed-not-MEDLINECurkovic, Tomislav Arraztio, Diego Huerta, Amanda Rebolledo, Ramon Cheuquel, Arly Contreras, Americo Millar, Jocelyn G eng APHIS 10-, 11-, 18-, and 19-8130-1422-CA/ Department of Agriculture/ 11070072/Fondecyt-Chile/ FIBN 021/2018/CONAF-Chile/ Switzerland 2022/11/25 Insects. 2022 Nov 18; 13(11):1067. doi: 10.3390/insects13111067"