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- Title
Response of garden chafer,Phyllopertha horticola, to plant volatiles: from screening to application.
- Authors
Ruther, Joachim; Mayer, Christoph J.
- Abstract
Field tests were performed on a golf course and in an apple orchard to screen synthetic plant volatiles with respect to their attractiveness for the garden chafer,Phyllopertha horticolaL. (Coleoptera: Scarabaeidae), and to investigate the possible application of plant volatiles for garden chafer control. The chemicals tested were green leaf volatiles (GLV), terpenoids, and phenylpropanoids. Funnel traps baited with the GLV (Z)-3-hexen-1-ol, 1-hexanol (Z)-3-hexenal, and hexanal captured moreP. horticolathan unbaited controls. Furthermore, traps baited with all tested floral terpenoids (i.e., geraniol, geranyl acetate, citronellol, linalool, and nerol) and phenylpropanoids (i.e., eugenol, anethol, isoeugenol, eugenyl acetate, and isoeugenyl acetate) captured more garden chafers than controls. Different dispenser types loaded once with a mixture of (Z)-3-hexen-1-ol (50%), geraniol (11.5%), eugenol (27%), and 2-phenylethyl propionate (11.5%) attractedP. horticolaover a whole flight season. A commercially available membrane dispenser had the best properties, combining the highest number of captured beetles with a low release rate. A simple modification of the trap design, i.e., a reduction of the funnel outlet diameter, significantly reduced the capture of beneficial non-target insects (Apoidea), without influencing the number of captured garden chafers. A mass trapping experiment in the apple orchard revealed that the use of attractant traps significantly reduced the percentage of apples disfigured by feeding holes of adult garden chafers (control area: 18.9%, test area: 11.6%). The possible application of synthetic plant volatiles in mass trapping and monitoring approaches for garden chafer control is discussed.
- Subjects
ORCHIDS; GARDEN design; SCARABAEIDAE; INSECTS; TRAPPING; FARMS
- Publication
Entomologia Experimentalis et Applicata, 2005, Vol 115, Issue 1, p51
- ISSN
0013-8703
- Publication type
Article
- DOI
10.1111/j.1570-7458.2005.00264.x