Czarnobai De Jorge, Bruna ; Meyhöfer, Rainer ; Jürgens, Andreas ; Gross, Jürgen (2024)
Preference of pear psyllid (Cacopsylla pyri) for specific colour inspires new application in plant protection.
In: Journal of Applied Entomology, 2023, 147 (10)
doi: 10.26083/tuprints-00027186
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
Understanding the cues used by insects to select their hosts is essential for developing sustainable control strategies, particularly for plant disease vectors. Pear psyllids (Cacopsylla pyri) are vectors of the bacterial disease pear decline caused by ‘Candidatus Phytoplasma pyri’. Yellow sticky traps are typically used to monitor pest insects, but they are non‐specific and capture many beneficial insects, too. Against the background of improving visual traps, this research aimed to investigate the colour choice behaviour of C. pyri. Our first approach was to screen insect colour preferences by performing choice assays with different LED colour wavelengths in a small‐scale choice arena under controlled conditions. Over six LEDs tested, there was a strong significant preference of C. pyri for green 1 (532 nm) followed by green 2 (549 nm). Yellow (576 nm), orange (593 nm), red 1 (619 nm) and red 2 (633 nm) were less attractive than green. Subsequently, the trapping of pear psyllids was tested in the field using newly developed traps covered with transparent‐coloured PVC sheets with a similar wavelength of the preferred LEDs. Red and completely transparent traps have been used as control and combined in randomized blocks in a pear orchard. Field trials revealed that green traps ranging from 525 to 537 nm attracted significantly more pear psyllids than longer wavelength green (543 nm), red and transparent ones. The construction of specific green‐coloured sticky traps seems promising for improving psyllid trapping, especially during an early infestation at low population densities. Thus, these visual traps should be considered in future and integrated into psyllid monitoring as part of integrated pest management.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Czarnobai De Jorge, Bruna ; Meyhöfer, Rainer ; Jürgens, Andreas ; Gross, Jürgen |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Preference of pear psyllid (Cacopsylla pyri) for specific colour inspires new application in plant protection |
| Sprache: | Englisch |
| Publikationsjahr: | 4 Juni 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | Dezember 2023 |
| Ort der Erstveröffentlichung: | Weinheim |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Applied Entomology |
| Jahrgang/Volume einer Zeitschrift: | 147 |
| (Heft-)Nummer: | 10 |
| DOI: | 10.26083/tuprints-00027186 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/27186 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | Understanding the cues used by insects to select their hosts is essential for developing sustainable control strategies, particularly for plant disease vectors. Pear psyllids (Cacopsylla pyri) are vectors of the bacterial disease pear decline caused by ‘Candidatus Phytoplasma pyri’. Yellow sticky traps are typically used to monitor pest insects, but they are non‐specific and capture many beneficial insects, too. Against the background of improving visual traps, this research aimed to investigate the colour choice behaviour of C. pyri. Our first approach was to screen insect colour preferences by performing choice assays with different LED colour wavelengths in a small‐scale choice arena under controlled conditions. Over six LEDs tested, there was a strong significant preference of C. pyri for green 1 (532 nm) followed by green 2 (549 nm). Yellow (576 nm), orange (593 nm), red 1 (619 nm) and red 2 (633 nm) were less attractive than green. Subsequently, the trapping of pear psyllids was tested in the field using newly developed traps covered with transparent‐coloured PVC sheets with a similar wavelength of the preferred LEDs. Red and completely transparent traps have been used as control and combined in randomized blocks in a pear orchard. Field trials revealed that green traps ranging from 525 to 537 nm attracted significantly more pear psyllids than longer wavelength green (543 nm), red and transparent ones. The construction of specific green‐coloured sticky traps seems promising for improving psyllid trapping, especially during an early infestation at low population densities. Thus, these visual traps should be considered in future and integrated into psyllid monitoring as part of integrated pest management. |
| Freie Schlagworte: | colour sticky traps, colour vision, IPM, monitoring, pear decline, psyllids |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-271863 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 570 Biowissenschaften, Biologie 500 Naturwissenschaften und Mathematik > 580 Pflanzen (Botanik) |
| Fachbereich(e)/-gebiet(e): | 10 Fachbereich Biologie 10 Fachbereich Biologie > Chemical Plant Ecology |
| Hinterlegungsdatum: | 04 Jun 2024 12:26 |
| Letzte Änderung: | 05 Jun 2024 09:20 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Preference of pear psyllid (Cacopsylla pyri) for specific colour inspires new application in plant protection. (deposited 04 Jun 2024 12:26) [Gegenwärtig angezeigt]
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