| Title: | Attraction of Frankliniella occidentalis Females towards the Aggregation Pheromone Neryl (S)-2-Methylbutanoate and Kairomones in a Y-Olfactometer |
| Author(s): | Chappuis CJF; Cleroux M; Descombes C; Barth Y; Lefort F; |
| Address: | "Analytical Chemistry Group, Haute Ecole de Viticulture et Oenologie de Changins, HES-SO University of Applied Sciences and Arts Western Switzerland, 1260 Nyon, Switzerland. Plants and Pathogens Group, Research Institute Land Nature Environment, Geneva School of Engineering Architecture and Landscape, HES-SO University of Applied Sciences and Arts Western Switzerland, 1254 Jussy, Switzerland" |
| ISSN/ISBN: | 2075-4450 (Print) 2075-4450 (Electronic) 2075-4450 (Linking) |
| Abstract: | "An understanding of insect olfaction allows for more specific alternative methods of pest control. We evaluated the responses of the western flower thrips (WFT, Frankliniella occidentalis) in a Y-olfactometer to estimate gas-phase concentrations of the aggregation pheromone neryl (S)-2-methylbutanoate and known kairomones such as methyl isonicotinate, (S)-(-)-verbenone, and p-anisaldehyde. The gas-phase concentrations of these compounds were obtained from the release rates measured in dynamic headspace cells. The compounds were collected from the headspace using dried solid-phase extraction (SPE) cartridges and analyzed with a triple quadrupole GC-MS/MS. We observed that the aggregation pheromone significantly attracted WFT females at doses of 10 and 100 microg, whereas methyl isonicotinate and p-anisaldehyde significantly attracted WFT females at the highest dose. Verbenone did not produce any significant results. A completely different picture was obtained when the gas-phase concentrations were considered. The minimal gas-phase concentrations of the pheromone required to attract WFT females was 0.027 ng/mL, at least 100 times lower than that of the other two compounds. The relevance and implications of our results are discussed in light of the insect's biology and pest management methods" |
| Keywords: | gas-phase concentration olfaction olfactometer pest management western flower thrips; |
| Notes: | "PubMed-not-MEDLINEChappuis, Charles J F Cleroux, Marilyn Descombes, Corentin Barth, Yannick Lefort, Francois eng 107077/University of Applied Sciences and Arts Western Switzerland/ Switzerland 2023/06/27 Insects. 2023 Jun 16; 14(6):562. doi: 10.3390/insects14060562" |
