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Showing papers by "Peter Witzgall published in 1998"

Journal Article•DOI•
Effect of Codlemone Isomers on Codling Moth (Lepidoptera: Tortricidae) Male Attraction

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Ashraf M. El-Sayed1, Rikard Unelius1, Ilme Liblikas1, Jan Löfqvist1, Marie Bengtsson1, Peter Witzgall1 •
Swedish University of Agricultural Sciences1
01 Oct 1998-Environmental Entomology
TL;DR: The effect of codlemone geometric isomers (E,Z)-, (Z,E)-, and (Z),Z)-8,10-dodecadienol on sex attraction of male codling moth, Cydia pomonella (L.), is studied in the field and in a wind tunnel.
Abstract: We studied the effect of codlemone geometric isomers (E,Z)-, (Z,E)-, and (Z,Z)-8,10-dodecadienol on sex attraction of male codling moth, Cydia pomonella (L.), in the field and in a wind tunnel. The ...

28 citations

Journal Article•DOI•
Location of the pheromone producing gland in the European grapevine moth, Lobesia botrana (Lepidoptera : Tortricidae)

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Ashraf M. El-Sayed, Peter Witzgall, Heinrich Arn
25 Nov 1998-Applied Entomology and Zoology

3 citations

Journal Article•DOI•
Sex pheromone of pear moth, Cydia pyrivora

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György Makranczy1, Miklós Tóth2, Jean Pierre Chambon, C. Rikard Unelius, Marie Bengtsson1, Peter Witzgall1 •
Swedish University of Agricultural Sciences1, Hungarian Academy of Sciences2
01 Sep 1998-Biocontrol
TL;DR: The sex pheromone of the pear moth, Cydia pyrivora, is (E,E)-8,10-dodecadien-yl acetate and a 5%-addition of the geometric isomers E,Z and Z,Z decreased male attraction in the field, the Z,E isomer had no significant effect.
Abstract: The sex pheromone of the pear moth, Cydia pyrivora, is (E,E)-8, 10-dodecadien-yl acetate. A 5%-addition of the geometric isomers E,Z and Z,Z decreased male attraction in the field, the Z,E isomer h ...

2 citations