Antennal and behavioural responses of the spruce seedmoth, Cydia strobilella, to floral volatiles of Norwayspruce, Picea abies, and temporal variation in emissionof active compounds
(2016) In Entomologia Experimentalis et Applicata 160(3). p.209-218- Abstract
We investigated whether spruce seed moth, Cydia strobilella L. (Lepidoptera: Tortricidae, Grapholitini), one of the most damaging seed predators on Norway spruce, Picea abies (L.) H. Karst (Pinaceae), uses olfactory cues during host search. Analyses with coupled gas chromatography and electroantennography revealed that antennae of both sexes of moths responded consistently to three compounds in the headspace from female spruce flowers, i.e., α-pinene, β-pinene, and myrcene, but not to limonene as has been previously reported for this species. The amounts of these active volatiles released from flowers and cones of P. abies were quantified, and their diurnal and seasonal variation was monitored. The total release of the active volatiles... (More)
We investigated whether spruce seed moth, Cydia strobilella L. (Lepidoptera: Tortricidae, Grapholitini), one of the most damaging seed predators on Norway spruce, Picea abies (L.) H. Karst (Pinaceae), uses olfactory cues during host search. Analyses with coupled gas chromatography and electroantennography revealed that antennae of both sexes of moths responded consistently to three compounds in the headspace from female spruce flowers, i.e., α-pinene, β-pinene, and myrcene, but not to limonene as has been previously reported for this species. The amounts of these active volatiles released from flowers and cones of P. abies were quantified, and their diurnal and seasonal variation was monitored. The total release of the active volatiles correlated well with the diurnal and seasonal flight activity of C. strobilella as revealed by catches of males in pheromone-baited traps. In field trapping experiments, where baits were loaded with proportions and enantiomeric ratios of α-pinene, β-pinene, and myrcene matching those of the female P. abies floral headspace, substantial catches of male C. strobilella were achieved, whereas few females were captured. These surprising results suggest that male C. strobilella make use of host volatiles to aid them in their search for females.
(Less)
- author
- Jakobsson, Johan LU ; Svensson, Glenn LU ; Löfstedt, Christer LU and Anderbrant, Olle LU
- organization
- publishing date
- 2016-09-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- field trapping, GC-EAD, Grapholitini, host attraction, kairomone, Lepidoptera, myrcene, Pinaceae, seed predation, Tortricidae, α-pinene, β-pinene
- in
- Entomologia Experimentalis et Applicata
- volume
- 160
- issue
- 3
- pages
- 10 pages
- publisher
- Wiley
- external identifiers
-
- scopus:84987809887
- wos:000383346200002
- scopus:84987809887
- ISSN
- 1570-7458
- DOI
- 10.1111/eea.12474
- project
- Pheromones for managing insects in spruce seed orchards
- language
- English
- LU publication?
- yes
- id
- 6479ff6b-ed47-431f-80f4-28a7ac5f5af1
- date added to LUP
- 2016-09-20 15:58:54
- date last changed
- 2024-01-04 12:43:23
@article{6479ff6b-ed47-431f-80f4-28a7ac5f5af1,
abstract = {{<p>We investigated whether spruce seed moth, Cydia strobilella L. (Lepidoptera: Tortricidae, Grapholitini), one of the most damaging seed predators on Norway spruce, Picea abies (L.) H. Karst (Pinaceae), uses olfactory cues during host search. Analyses with coupled gas chromatography and electroantennography revealed that antennae of both sexes of moths responded consistently to three compounds in the headspace from female spruce flowers, i.e., α-pinene, β-pinene, and myrcene, but not to limonene as has been previously reported for this species. The amounts of these active volatiles released from flowers and cones of P. abies were quantified, and their diurnal and seasonal variation was monitored. The total release of the active volatiles correlated well with the diurnal and seasonal flight activity of C. strobilella as revealed by catches of males in pheromone-baited traps. In field trapping experiments, where baits were loaded with proportions and enantiomeric ratios of α-pinene, β-pinene, and myrcene matching those of the female P. abies floral headspace, substantial catches of male C. strobilella were achieved, whereas few females were captured. These surprising results suggest that male C. strobilella make use of host volatiles to aid them in their search for females.</p>}},
author = {{Jakobsson, Johan and Svensson, Glenn and Löfstedt, Christer and Anderbrant, Olle}},
issn = {{1570-7458}},
keywords = {{field trapping; GC-EAD; Grapholitini; host attraction; kairomone; Lepidoptera; myrcene; Pinaceae; seed predation; Tortricidae; α-pinene; β-pinene}},
language = {{eng}},
month = {{09}},
number = {{3}},
pages = {{209--218}},
publisher = {{Wiley}},
series = {{Entomologia Experimentalis et Applicata}},
title = {{Antennal and behavioural responses of the spruce seedmoth, <i>Cydia strobilella</i>, to floral volatiles of Norwayspruce, <i>Picea abies</i>, and temporal variation in emissionof active compounds}},
url = {{http://dx.doi.org/10.1111/eea.12474}},
doi = {{10.1111/eea.12474}},
volume = {{160}},
year = {{2016}},
}