| Title: | 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 |
| Author(s): | Koczor S; Szentkiralyi F; Birkett MA; Pickett JA; Voigt E; Toth M; |
| Address: | "Plant Protection Institute, Budapest, Hungary. koczor@julia-nki.hu" |
| ISSN/ISBN: | 1526-4998 (Electronic) 1526-498X (Linking) |
| 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" |
| Keywords: | "Animals Bridged Bicyclo Compounds, Heterocyclic/chemistry/pharmacology Cyclopentane Monoterpenes Cyclopentanes/chemistry/pharmacology Female Hungary Insect Control Insecta/*drug effects Male Nepeta/chemistry Plant Extracts/chemical synthesis/*pharmacology;" |
| Notes: | "MedlineKoczor, Sandor Szentkiralyi, Ferenc Birkett, Michael A Pickett, John A Voigt, Erzsebet Toth, Miklos eng Biotechnology and Biological Sciences Research Council/United Kingdom Research Support, Non-U.S. Gov't England 2010/10/16 Pest Manag Sci. 2010 Dec; 66(12):1374-9. doi: 10.1002/ps.2030. Epub 2010 Oct 14" |
