P
Peter Witzgall
Researcher at Swedish University of Agricultural Sciences
Publications - 132
Citations - 6377
Peter Witzgall is an academic researcher from Swedish University of Agricultural Sciences. The author has contributed to research in topics: Sex pheromone & Codling moth. The author has an hindex of 42, co-authored 126 publications receiving 5681 citations. Previous affiliations of Peter Witzgall include Centre national de la recherche scientifique & Norwegian University of Life Sciences.
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Specific response to herbivore-induced de novo synthesized plant volatiles provides reliable information for host plant selection in a moth.
TL;DR: In this article, the authors show that female moths of the Egyptian cotton leafworm, Spodoptera littoralis (Lepidoptera: Noctuidae), avoid oviposition on damaged cotton Gossypium hirsutum, which may mediated by herbivore-induced plant volatiles (HIPVs).
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Sex pheromones and attractants in the Eucosmini and Grapholitini (Lepidoptera, Tortricidae)
Peter Witzgall,Jean Pierre Chambon,Marie Bengtsson,C. Rikard Unelius,Monica Appelgren,György Makranczy,N. Muraleedharan,Darwin W. Reed,Klaus Hellrigl,Hans Ruedi Buser,Eric Hallberg,Gunnar Bergström,Miklós Tóth,Christer Löfstedt,Jan Löfqvist +14 more
TL;DR: The geometric isomer was behaviourally active in males of Cydia andGrapholita (Grapholitini), either as main pheromone compound, attraction synergist or attraction inhibitor, and their reciprocal attractive/antagonistic activity in a number of species enables specific communication with these four compounds.
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The chemosensory receptors of codling moth Cydia pomonella– expression in larvae and adults
TL;DR: An Illumina-based transcriptome from antennae of males and females as well as neonate head tissue is produced, affording a qualitative and quantitative analysis of the codling moth chemosensory receptor repertoire, and several OR transcripts displaying sex-biased expression in adults and larval-enriched transcripts are identified.
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A Conserved Odorant Receptor Detects the Same 1-Indanone Analogs in a Tortricid and a Noctuid Moth
Francisco Gonzalez,Jonas M. Bengtsson,William B. Walker,Maria F. R. Sousa,Alberto Cattaneo,Nicolas Montagné,Arthur de Fouchier,Gianfranco Anfora,Emmanuelle Jacquin-Joly,Peter Witzgall,Rickard Ignell,Marie Bengtsson +11 more
TL;DR: The results demonstrate a conserved function of an odorant receptor in two moths that are phylogenetically and ecologically distant and demonstrates that functional characterization of ORs leads to the discovery of novel semiochemicals that have not been found through chemical analysis of odorants from insects and their associated host plants.
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PHEROMONE RELEASE BY INDIVIDUAL FEMALES OF CODLING MOTH, Cydia pomonella
TL;DR: The gland titer and release of sex pheromone was studied in individual Cydia pomonella females and addition of these minor components to codlemone did not increase male attraction to field traps.