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Insects

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"
Journal Title:		Insects
Year:		2023
Volume:		20230616
Issue:		6
Page Number:		-
DOI:		10.3390/insects14060562
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"