| Title: | Feeding Volatiles of Larval Sparganothis pilleriana (Lepidoptera: Tortricidae) Attract Heterospecific Adults of the European Grapevine Moth |
| Author(s): | El-Sayed AM; Ganji S; Unelius CR; Gemeno C; Ammagarahalli B; Butler RC; Hoffmann C; |
| Address: | "The New Zealand Institute for Plant and Food Research Limited, Gerald Street, Lincoln 7608, New Zealand. Faculty of Health and Life Sciences, Linnaeus University, SE-391 82 Kalmar,Sweden. Department of Crop and Forest Sciences, University of Lleida Agotecnio-CERCA-Center, 25198 Lleida,Spain. Excellent Team for Mitigation, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Prague 16500,Czech Republic. Julius Kuhn-Institute-Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture, Laboratory of Zoology and Integrated Production in Viticulture, D-76833 Siebeldingen, Germany" |
| ISSN/ISBN: | 1938-2936 (Electronic) 0046-225X (Linking) |
| Abstract: | "Plants release volatiles in response to caterpillar feeding. These herbivore-induced plant volatiles (HIPVs) attract natural enemies of the herbivores and repel or attract conspecific adult herbivores in a tri-trophic interaction which has been considered to be an indirect plant defense against herbivores. Recently, we demonstrated the attraction of male and female European grapevine moth, Lobesia botrana (Denis & Schiffermuller) (Lepidoptera: Tortricidae) to a blend of phenylacetonitrile and acetic acid, two compounds identified as HIPVs in heterospecific apple-leafroller interactions. The ecological basis of our findings is not clearly understood. Thus, this work was undertaken to investigate HIPVs in the grapevine-leafroller interaction and study the response of heterospecific adults L. botrana, to these volatiles. We collected headspace volatiles emitted from uninfested grapevines and grapevines infested with larvae of a generalist herbivore, the grapevine leafroller moth, Sparganothis pilleriana (Denis & Schiffermuller), and analyzed them using gas chromatography/mass spectrometry. Infested grape leaves released three compounds (phenylacetonitrile, indole, and 2-phenylethanol) not found from uninfested leaves. Nine different blends, comprising a full factorial set of the three compounds with each blend containing acetic acid, were tested in a field-cage trial. Only lures containing phenylacetonitrile caused a significant increase in trap catches compared to the other lures and blank traps. Electroantennographic tests show that L. botrana can detect the compounds. The results confirm our hypothesis that phenylacetonitrile is released during grapevines infestation with herbivores, and attracts adult L. botrana" |
| Keywords: | Animals Female Herbivory Larva Male *Malus *Moths *Volatile Organic Compounds Lobesia botrana 2-phenylethanol acetic acid caterpillar-induced plant volatile phenylacetonitrile; |
| Notes: | "MedlineEl-Sayed, Ashraf M Ganji, Suresh Unelius, C Rikard Gemeno, Cesar Ammagarahalli, Byrappa Butler, Ruth C Hoffmann, Christoph eng Ministry of Business, Innovation and Employment/ Research Support, Non-U.S. Gov't England 2021/09/23 Environ Entomol. 2021 Dec 17; 50(6):1286-1293. doi: 10.1093/ee/nvab088" |
