Attraction of Chrysoperla carnea complex and Chrysopa spp. lacewings (Neuroptera: Chrysopidae) to aphid sex pheromone components and a synthetic blend of floral compounds in Hungary

A - Papers appearing in refereed journals

Koczor, S., Szentkiralyi, F., Birkett, M. A., Pickett, J. A., Voigt, E. and Toth, M. 2010. Attraction of Chrysoperla carnea complex and Chrysopa spp. lacewings (Neuroptera: Chrysopidae) to aphid sex pheromone components and a synthetic blend of floral compounds in Hungary. Pest Management Science. 66 (12), pp. 1374-1379.

AuthorsKoczor, S., Szentkiralyi, F., Birkett, M. A., Pickett, J. A., Voigt, E. and Toth, M.
Abstract

BACKGROUND: The deployment of synthetic attractants for the manipulation of lacewing populations as aphid predators is currently used in integrated pest management. This study investigates a synthetic bait comprising floral compounds previously found to attract the Chrysoperla carnea complex, and, for the first time, the aphid sex pheromone components (1R,4aS,7S,7aR)-nepetalactol and (4aS,7S,7aR)-nepetalactone, in field experiments in Hungary, for their ability to manipulate lacewing populations. RESULTS: The synthetic floral bait attracted both sexes of the Chrysoperla carnea complex, and Chrysopa formosa Brauer showed minimal attraction. The aphid sex pheromone compounds alone attracted males of C. formosa and C. pallens (Rambur). When the two baits were combined, Chrysopa catches were similar to those with aphid sex pheromone baits alone, but carnea complex catches decreased significantly (by 85-88%). CONCLUSION: As the floral bait alone attracted both sexes of the carnea complex, it showed potential to manipulate the location of larval density via altering the site of oviposition. Aphid sex pheromone compounds alone attracted predatory males of Chrysopa spp. and can potentially be used to enhance biological control of aphids. For the carnea complex, however, a combination of both baits is not advantageous because of the decrease in adults attracted. Assumptions of intraguild avoidance underlying this phenomenon are discussed. (C) 2010 Society of Chemical Industry

KeywordsAgronomy; Entomology
Year of Publication2010
JournalPest Management Science
Journal citation66 (12), pp. 1374-1379
Digital Object Identifier (DOI)doi:10.1002/ps.2030
PubMed ID20949547
Open accessPublished as non-open access
FunderBiotechnology and Biological Sciences Research Council
Non-Food Crops (CIMNFC)
Funder project or codeCentre for Sustainable Pest and Disease Management (PDM)
PublisherWiley
ISSN1526-498X

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