Investigating chemoreception and behavioural responses of Tetranychus urticae (Trombidiformes: Tetranychidae) to organic acids, aldehydes and essential oil components
The two-spotted spider mite, Tetranychus urticae Koch, is a globally distributed polyphagous agricultural pest that is resistant to a variety of synthetic chemical pesticides. Plant essential oils have been recognized as a novel natural source of pest control that have a reduced impact to the enviro...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-07-01
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| Series: | Frontiers in Agronomy |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fagro.2023.1212705/full |
| _version_ | 1797788451324559360 |
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| author | Kayla Gaudet Nicoletta Faraone Neil Kirk Hillier |
| author_facet | Kayla Gaudet Nicoletta Faraone Neil Kirk Hillier |
| author_sort | Kayla Gaudet |
| collection | DOAJ |
| description | The two-spotted spider mite, Tetranychus urticae Koch, is a globally distributed polyphagous agricultural pest that is resistant to a variety of synthetic chemical pesticides. Plant essential oils have been recognized as a novel natural source of pest control that have a reduced impact to the environment and human health relative to synthetic pesticides, and which may provide a viable alternative for managing this pest. The present study focuses on assessing the potential of mite semiochemicals and essential oil constitutes as repellents and miticides. We developed an innovative electrophysiological approach (electrotarsography) to record olfactory sensitivity of T. urticae. Additionally, a novel two-choice behavioural assay was designed to determine whether T. urticae is attracted or repelled by selected compounds. Using Gas Chromatography-linked Electrotarsal detection (GC-ETD), we determined that T. urticae can sense many terpenoids commonly found in plant essential oils, such as eucalyptol, thymol, and linalool. In addition, T. urticae responded to carboxylic acids and aldehydes, which are known to be detected by ionotropic receptors. In two-choice behavioural assays, T. urticae was repelled by various essential oil active ingredients, as well as carboxylic acids and aldehydes. The study provides much needed insight to identify behaviourally relevant chemical cues for the development of mite control strategies. |
| first_indexed | 2024-03-13T01:36:42Z |
| format | Article |
| id | doaj.art-3d66985ef9354cc9b3b51d3379c3a1eb |
| institution | Directory Open Access Journal |
| issn | 2673-3218 |
| language | English |
| last_indexed | 2024-03-13T01:36:42Z |
| publishDate | 2023-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Agronomy |
| spelling | doaj.art-3d66985ef9354cc9b3b51d3379c3a1eb2023-07-04T04:51:26ZengFrontiers Media S.A.Frontiers in Agronomy2673-32182023-07-01510.3389/fagro.2023.12127051212705Investigating chemoreception and behavioural responses of Tetranychus urticae (Trombidiformes: Tetranychidae) to organic acids, aldehydes and essential oil componentsKayla Gaudet0Nicoletta Faraone1Neil Kirk Hillier2Department of Biology, Acadia University, Wolfville, NS, CanadaDepartment of Chemistry, Acadia University, Wolfville, NS, CanadaDepartment of Biology, Acadia University, Wolfville, NS, CanadaThe two-spotted spider mite, Tetranychus urticae Koch, is a globally distributed polyphagous agricultural pest that is resistant to a variety of synthetic chemical pesticides. Plant essential oils have been recognized as a novel natural source of pest control that have a reduced impact to the environment and human health relative to synthetic pesticides, and which may provide a viable alternative for managing this pest. The present study focuses on assessing the potential of mite semiochemicals and essential oil constitutes as repellents and miticides. We developed an innovative electrophysiological approach (electrotarsography) to record olfactory sensitivity of T. urticae. Additionally, a novel two-choice behavioural assay was designed to determine whether T. urticae is attracted or repelled by selected compounds. Using Gas Chromatography-linked Electrotarsal detection (GC-ETD), we determined that T. urticae can sense many terpenoids commonly found in plant essential oils, such as eucalyptol, thymol, and linalool. In addition, T. urticae responded to carboxylic acids and aldehydes, which are known to be detected by ionotropic receptors. In two-choice behavioural assays, T. urticae was repelled by various essential oil active ingredients, as well as carboxylic acids and aldehydes. The study provides much needed insight to identify behaviourally relevant chemical cues for the development of mite control strategies.https://www.frontiersin.org/articles/10.3389/fagro.2023.1212705/fullbehavioural responsecarboxylic acidselectrotarsographyessential oilstwospotted spider mite |
| spellingShingle | Kayla Gaudet Nicoletta Faraone Neil Kirk Hillier Investigating chemoreception and behavioural responses of Tetranychus urticae (Trombidiformes: Tetranychidae) to organic acids, aldehydes and essential oil components Frontiers in Agronomy behavioural response carboxylic acids electrotarsography essential oils twospotted spider mite |
| title | Investigating chemoreception and behavioural responses of Tetranychus urticae (Trombidiformes: Tetranychidae) to organic acids, aldehydes and essential oil components |
| title_full | Investigating chemoreception and behavioural responses of Tetranychus urticae (Trombidiformes: Tetranychidae) to organic acids, aldehydes and essential oil components |
| title_fullStr | Investigating chemoreception and behavioural responses of Tetranychus urticae (Trombidiformes: Tetranychidae) to organic acids, aldehydes and essential oil components |
| title_full_unstemmed | Investigating chemoreception and behavioural responses of Tetranychus urticae (Trombidiformes: Tetranychidae) to organic acids, aldehydes and essential oil components |
| title_short | Investigating chemoreception and behavioural responses of Tetranychus urticae (Trombidiformes: Tetranychidae) to organic acids, aldehydes and essential oil components |
| title_sort | investigating chemoreception and behavioural responses of tetranychus urticae trombidiformes tetranychidae to organic acids aldehydes and essential oil components |
| topic | behavioural response carboxylic acids electrotarsography essential oils twospotted spider mite |
| url | https://www.frontiersin.org/articles/10.3389/fagro.2023.1212705/full |
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