title: Volatiles released from Vaccinium corymbosum were attractive to Aegorhinus superciliosus (Coleoptera: Curculionidae) in an olfactometric bioassay.
abstract: The objective of this study was to evaluate the role of host volatiles in the relationship between a blueberry plant Vaccinium corymbosum L. and the raspberry weevil Aegorhinus superciliosus (Guérin) (Coleoptera: Curculionidae), the principal pest of blueberry in the south of Chile. Volatiles from the aerial part of different phenological stages of the host were collected on Porapak Q and analyzed by coupled gas chromatography-mass spectrometry (GC-MS). Several chemical groups were identified including green leaf volatiles, aromatic compounds, and terpenes. The olfactometric responses of A. superciliosus toward different odor sources were studied in a four-arm olfactometer. Blueberry shoots at the phenological stages of fruit set, and blue-pink fruit color elicited the greatest behavioral responses from weevils. Five compounds (2-nonanone, eucalyptol, R- and S-limonene, and 4-ethyl benzaldehyde) elicited an attractant behavioral response from A. superciliosus. The results suggest the host location behavior of A. superciliosus could be mediated by volatiles derived from V. corymbosum. This work has identified a number of compounds with which it is possible to develop a lure for the principal pest of blueberry in southern Chile.
authors.affiliation: Laboratorio de Ecología Química, Departamento de Ciencias Químicas, Universidad de La Frontera, Temuco, Chile.
authors.forename: Leonardo
authors.initials: L
authors.lastname: Parra
authors.forename: Ana
authors.initials: A
authors.lastname: Mutis
authors.forename: Ricardo
authors.initials: R
authors.lastname: Ceballos
authors.forename: Marcelo
authors.initials: M
authors.lastname: Lizama
authors.forename: Fernando
authors.initials: F
authors.lastname: Pardo
authors.forename: Fernando
authors.initials: F
authors.lastname: Perich
authors.forename: Andrés
authors.initials: A
authors.lastname: Quiroz
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000502:physiology*; D029798:Blueberry Plants / Q000254:growth & development / Q000378:metabolism*; D005260:Female; D005638:Fruit / Q000254:growth & development; D008297:Male; D010572:Pest Control, Biological; D011157:Population Dynamics; D012621:Seasons; D055549:Volatile Organic Compounds / Q000032:analysis / Q000378:metabolism*; D048889:Weevils / Q000502:physiology*
chemical_list: D055549:Volatile Organic Compounds