Identification of sex pheromone components of nettle caterpillar, Setothosea asigna


Back to previous page
Authors: Sasaerila, Y; Gries, G; Khaskin, G; Greis, R; Hardi
Year: 1997
Journal: J. Chem. Ecol. 23: 2187-2196   Article Link (DOI)
Title: Identification of sex pheromone components of nettle caterpillar, Setothosea asigna
Abstract: Gas chromatographic-electroantennographic detection (GC-EAD) analyses of female nettle caterpillar, Setothosea asigna, pheromone gland extracts revealed seven antennally active compounds. Based on their retention indices on three fused silica columns (DB-5, DB-23, and DB-210), these compounds were hypothesized and, through comparative GC, GC-EAD and GC-mass spectrometry with authentic standards, confirmed to be Delta 10-undecenal, dodecanal, (E)-9-dodecenal (E9-12:Ald), (Z)-9-dodecenal, (E)-9-dodecen-1-ol, (E)-9,11-dodecadienal (E9,11-12: Ald), and (E)-9,11-dodecadienol. E9-12:Ald and E9,11-12:Ald were most abundant in female S, asigna pheromone extracts. In field trapping experiments in Palembang, Indonesia, synthetic E9-12:Ald and E9,11-12:Ald at a 1:1 ratio, but not singly, attracted S. asigna males. Attractiveness of these two aldehydes could not be enhanced further through the addition of their corresponding alcohols and/or other aldehydic candidate pheromone components. Use of E9-12:Ald and E9,11-12:Ald for pheromone-based monitoring of S. asigna populations will require lure formulations that minimize pheromone degradation by ultraviolet radiation and atmospheric oxidation.
Back to previous page
 

Please send suggestions for improving this publication database to sass-support@sfu.ca.
Departmental members may update their publication list.