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  • Anderbrant, OlleLund University,Lunds universitet,Funktionell zoologi,Biologiska institutionen,Naturvetenskapliga fakulteten,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Feromongruppen,Forskargrupper vid Lunds universitet,Functional zoology,Department of Biology,Faculty of Science,Centre for Environmental and Climate Science (CEC),Pheromone Group,Lund University Research Groups (author)

Attraction of Male Pine Sawflies, Diprion jingyuanensis, to Synthetic Pheromone Candidates: Synergism between Two Stereoisomers

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • MDPI,2023

Numbers

  • LIBRIS-ID:oai:gup.ub.gu.se/328552
  • https://gup.ub.gu.se/publication/328552URI
  • https://doi.org/10.3390/f14061187DOI
  • https://lup.lub.lu.se/record/37737bf7-875e-48cb-9c96-964f0cd09cc4URI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-49027URI

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  • Language:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • The pine sawfly Diprion jingyuanensis Xiao and Zhang (Hymenoptera: Diprionidae) is a serious pest of Pinus tabulaeformis Carr. in the Shanxi, Gansu, and Inner Mongolia provinces in P. R. China. The sex pheromone of D. jingyuanensis was shown to be the propionate ester of 3,7-dimethyl-2-tridecanol. Virgin females contained an approximate 1:3 blend of the pheromone precursors erythro-(2S,3S,7R/S and 2R,3R,7R/S)-3,7-dimethyl-2-tridecanol and threo-(2S,3R,7R/S and 2R,3S,7R/S)-3,7-dimethyl-2-tridecanol, but the exact stereoisomers were not determined. Males responded the strongest to the propionate ester of the two threo-isomers, (2S,3R,7R) and (2S,3R,7S), in electroantennogram (EAG) recordings, followed by a significant EAG response to the (2S,3R,7R) propionate of diprionol (pheromone component of D. similis), whereas the remaining two isomers (2S,3S,7S and 2S,3S,7R) of the propionate ester of 3,7-dimethyl-2-tridecanol and the acetate of the (2S,3R,7R) isomer (one of the two pheromone components of D. pini) did not elicit any significant increase in antennal response. In the field, the strongly EAG-active (2S,3R,7R)-isomer alone was only weakly (but significantly) attractive to D. jingyuanensis males at 100 & mu;g, while the equally EAG- active (2S,3R,7S)-isomer alone at the same loading was 8-14 times more attractive than was the (2S,3R,7R)-isomer alone. Traps baited with the same amounts of the two threo-isomers ((2S,3R,7R) and (2S,3R,7S), 100 & mu;g + 100 & mu;g) caught significantly more males than did traps baited with other isomers, either of the two isomers alone or other proportions of the two isomers. Thus, the (2S,3R,7S)-isomer is considered as a strong and essential sex-attractant component for D. jingyuanensis males, whereas the (2S,3R,7R)-isomer is a weak but synergistic sex-attractant. This is one of the few examples of a pine sawfly responding significantly stronger to a binary blend of stereoisomers in a synergistic fashion than to a single stereoisomer alone.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Zhang, Q. H.State Forestry and Grassland Administration of China (author)
  • Chen, G. F.State Forestry and Grassland Administration of China (author)
  • Östrand, FredrikLund University,Lunds universitet,Biodiversitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Biodiversity,Department of Biology,Faculty of Science(Swepub:lu)ekol-fos (author)
  • Bergström, Gunnar,1934University of Gothenburg,Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences (author)
  • Wassgren, Ann-BrittUniversity of Gothenburg (author)
  • Zhang, Z.Chinese Academy of Forestry, Beijing (author)
  • Hedenström, Erik,1955-Mittuniversitetet,Mid Sweden University,Institutionen för naturvetenskap, design och hållbar utveckling (2023-)(Swepub:miun)erihed (author)
  • Högberg, Hans-ErikMittuniversitetet,Mid Sweden University,Institutionen för naturvetenskap, design och hållbar utveckling (2023-)(Swepub:miun)hansho (author)
  • Funktionell zoologiBiologiska institutionen (creator_code:org_t)

Related titles

  • In:Forests: MDPI14:61999-4907

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