Abstract

The geometric isomers (E,E)-, (E,Z)-, (Z,E)-, and (Z,Z)-8,10-dodecadien-1-yl acetate were identified as sex pheromone components or sex attractants in the tribes Eucosmini and Grapholitini of the tortricid subfamily Olethreutinae. Species belonging to the more ancestral Tortricinae were not attracted. Each one isomer was behaviourally active in males ofCydia andGrapholita (Grapholitini), either as main pheromone compound, attraction synergist or attraction inhibitor. Their reciprocal attractive/antagonistic activity in a number of species enables specific communication with these four compounds.Pammene, as well as otherGrapholita andCydia responded to the monoenic 8- or 10-dodecen-1-yl acetates. Of the tribes Olethreutini and Eucosmini,Hedya, Epiblema, Eucosma, andNotocelia trimaculana were also attracted to 8,10-dodecadien-1-yl acetates, but several otherNotocelia to 10,12-tetradecadien-1-yl acetates. The female sex pheromones ofC. fagiglandana, C. pyrivora, C. splendana, Epiblema foenella andNotocelia roborana were identified. (E,E)- and (E,Z)-8,10-dodecadien-1-yl acetate are producedvia a commonE9 desaturation pathway inC. splendana. CallingC. nigricana andC. fagiglandana females are attracted to wingfanning males.

Published in

Chemoecology
1996, Volume: 7, pages: 13-23

SLU Authors

• Witzgall, Peter

  • Department of Plant Protection Sciences, Swedish University of Agricultural Sciences
    

• Bengtsson, Marie

  • Department of Plant Protection Sciences, Swedish University of Agricultural Sciences
    

• Löfqvist, Jan

  • Department of Plant Protection Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Zoology


Publication identifier

DOI: https://doi.org/10.1007/BF01240633

Permanent link to this page (URI)

https://res.slu.se/id/publ/110583