Aphid Sex Pheromone Compounds Interfere with Attraction of Common Green Lacewings to Floral Bait

Sándor Koczor, Ferenc Szentkirályi, John A. Pickett, Michael A. Birkett, M. Tóth

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Common green lacewings (Chrysoperla carnea complex) form a group of generalist predators important for biological control. Several reports show attraction of these insects to plant volatiles, and a highly attractive ternary compound floral bait has been developed. With aphids being a preferred prey of larvae, one might expect these lacewings to be attracted to aphid semiochemicals, for instance, to aphid sex pheromones, as found for several other green lacewing species. However, in a previous study, we found that traps containing aphid sex pheromone compounds (1R,4aS,7S,7aR)-nepetalactol (NEPOH), (4aS,7S,7aR)-nepetalactone (NEPONE), and a ternary floral bait attracted fewer individuals than those containing the ternary floral bait alone. In the present study, possible causes for this effect of NEPOH and NEPONE on trap capture were studied. We established that C. carnea complex catches in traps with a ternary floral lure were not influenced by the presence of Chrysopa formosa individuals in traps (attracted by NEPOH and NEPONE) or by synthetic skatole (a characteristic component of Chrysopa defense secretion). A direct negative effect of NEPOH and NEPONE on attraction of C. carnea complex was found, suggesting active avoidance of these aphid sex pheromone components. This finding is surprising as the larvae of these lacewings prey preferentially on aphids. Possible mechanisms underlying this phenomenon are discussed.

Original languageEnglish
Pages (from-to)550-556
Number of pages7
JournalJournal of Chemical Ecology
Volume41
Issue number6
DOIs
Publication statusPublished - May 9 2015

Fingerprint

Sex Attractants
Aphids
Chrysopidae
sex pheromone
bait
sex pheromones
aphid
baits
Aphidoidea
traps
Skatole
Chrysopa
lacewings
Chrysoperla carnea
Pheromones
Larva
larva
skatole
semiochemical
semiochemicals

Keywords

  • (1R,4aS,7S,7aR)-nepetalactol
  • (4aS,7S,7aR)-nepetalactone
  • Biological control
  • Chrysopa formosa
  • Chrysoperla carnea complex
  • Neuroptera Chrysopidae
  • Synthetic ternary floral bait

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Biochemistry

Cite this

Aphid Sex Pheromone Compounds Interfere with Attraction of Common Green Lacewings to Floral Bait. / Koczor, Sándor; Szentkirályi, Ferenc; Pickett, John A.; Birkett, Michael A.; Tóth, M.

In: Journal of Chemical Ecology, Vol. 41, No. 6, 09.05.2015, p. 550-556.

Research output: Contribution to journalArticle

Koczor, Sándor ; Szentkirályi, Ferenc ; Pickett, John A. ; Birkett, Michael A. ; Tóth, M. / Aphid Sex Pheromone Compounds Interfere with Attraction of Common Green Lacewings to Floral Bait. In: Journal of Chemical Ecology. 2015 ; Vol. 41, No. 6. pp. 550-556.
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