« Previous AbstractComprehensive analytical method for semi-volatile organic compounds in water samples by combination of disk-type solid-phase extraction and gas chromatography-mass spectrometry database system    Next AbstractAssociation Between Oral Hygiene Status and Halitosis Among Smokers and Nonsmokers »

Pest Manag Sci

Title:		Anti-attractant activity of (+)-trans-4-thujanol for Eurasian spruce bark beetle Ips typographus: Novel potency for females
Author(s):		Jirosova A; Kalinova B; Modlinger R; Jakus R; Unelius CR; Blazenec M; Schlyter F;
Address:		"EXTEMIT-K, ETM, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Praha-Suchdol, Czech Republic. Institute of Forest Ecology, Slovak Academy of Sciences, Zvolen, Slovakia. Department of Chemistry and Biomedical Sciences, Linnaeus University, Kalmar, Sweden. Department of Plant Protection Biology, Chemical Ecology, Swedish University of Agricultural Sciences, Alnarp, Sweden"
Journal Title:		Pest Manag Sci
Year:		2022
Volume:		20220214
Issue:		5
Page Number:		1992 - 1999
DOI:		10.1002/ps.6819
ISSN/ISBN:		1526-4998 (Electronic) 1526-498X (Linking)
Abstract:		"BACKGROUND: Eurasian spruce bark beetles (Ips typographus) use both attractant and anti-attractant semiochemicals to find suitable mature host trees. Trans-4-thujanol is abundant in young, unsuitable spruce trees. Electrophysiological studies have demonstrated its high activity levels, but field data are lacking. RESULTS: Enantioselective GC-MS analysis showed that only (1R,4S)-(+)-trans-4-thujanol was present in Norway spruce bark volatiles. In a factorial design field-trapping experiment, trans-4-thujanol alone was not attractive to Ips typographus. Traps baited with I. typographus' aggregation pheromone and trans-4-thujanol or the known anti-attractant 1,8-cineole caught fewer beetles than those baited with the aggregation pheromone alone. Catches for trans-4-thujanol and 1,8-cineole were dose-dependent. Intermediate doses of trans-4-thujanol and 1,8-cineole had a similar effect. Surprisingly, in contrast to 1,8-cineole and other known Ips anti-attractants, which all inhibit males more strongly than females, the addition of trans-4-thujanol to the aggregation pheromone reduced the attraction of females more. CONCLUSION: The Norway spruce volatile (+)-trans-4-thujanol is a novel I. typographus anti-attractant with potency comparable to the known anti-attractants 1,8-cineole and verbenone, and is more effective for females than for males. Incorporating (+)-trans-4-thujanol into anti-attractant lures could improve protection of trees from mass attack by I. typographus"
Keywords:		"Animals Bicyclic Monoterpenes *Coleoptera/physiology Eucalyptol Female Male Pheromones/analysis *Picea Plant Bark/chemistry Trees *Weevils (1R, 4S)-(+)-trans-4-thujanol Coleoptera: Curculionidae: Scolytinae dose-response integrated pest management oxygenat;"
Notes:		"MedlineJirosova, Anna Kalinova, Blanka Modlinger, Roman Jakus, Rastislav Unelius, C Rikard Blazenec, Miroslav Schlyter, Fredrik eng Carl Trygger Foundation/ Ministry of Education, Youth and Sport, Operational Programme Research, Development and Education 'EXTEMIT-K,' No. CZ.02.1.01/0.0/0.0/15_003/0000433/ Slovak Research and Development Agency Nr. APVV-15-0761/ England 2022/02/02 Pest Manag Sci. 2022 May; 78(5):1992-1999. doi: 10.1002/ps.6819. Epub 2022 Feb 14"