Conspecific and Heterogeneric Lacewings Respond to (Z)-4-Tridecene Identified from Chrysopa formosa (Neuroptera: Chrysopidae)

A - Papers appearing in refereed journals

Koczor, S., Szentkiralyi, F., Vuts, J., Caulfield, J. C., Withall, D. M., Pickett, J. A., Birkett, M. A. and Toth, M. 2018. Conspecific and Heterogeneric Lacewings Respond to (Z)-4-Tridecene Identified from Chrysopa formosa (Neuroptera: Chrysopidae). Journal of Chemical Ecology. 44 (2), pp. 137-146.

AuthorsKoczor, S., Szentkiralyi, F., Vuts, J., Caulfield, J. C., Withall, D. M., Pickett, J. A., Birkett, M. A. and Toth, M.
Abstract

Green lacewings (Chrysopidae) are predators of soft-bodied pest insects and are among the most important biological control agents in crop protection. Chrysopa spp. are of special importance since, unlike most green lacewing species, adults are also predatory. The current study was undertaken in search of Chrysopa formosa compounds with semiochemical activity. Using coupled gas chromatography-electroantennography (GC-EAG), head and thorax extracts of C. formosa elicited EAG responses to a compound subsequently identified by coupled GC/mass spectrometry, microchemistry, chemical synthesis and GC peak enhancement as (Z)-4-tridecene. In field experiments, this compound decreased attraction of adult C. formosa to (1R,4aS,7S,7aR)-nepetalactol and that of Chrysoperla carnea species-complex to a ternary floral lure, with the inhibitory effect found to be dose-dependent. Our results suggest that (Z)-4-tridecene may serve as a general warning signal among multiple green lacewing species. Perspectives for potential practical applications are discussed.

Keywords(1R,4aS,7S,7aR)-nepetalactol ; Biological control; Chrysopa formosa; Chrysoperla carnea species-complex; Predator; Repellency; (Z)-4-tridecene; Synthetic ternary floral bait
Year of Publication2018
JournalJournal of Chemical Ecology
Journal citation44 (2), pp. 137-146
Digital Object Identifier (DOI)doi:10.1007/s10886-017-0920-2
Open accessPublished as non-open access
Funder project or codeBBSRC Strategic Programme in Smart Crop Protection
FunderBiotechnology and Biological Sciences Research Council
Output statusPublished
Publication dates
Online26 Jan 2018
Publication process dates
Accepted18 Dec 2017
PublisherSpringer
Copyright licenseCC BY
ISSN0098-0331

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