Details
| Original language | English |
|---|---|
| Article number | 423 |
| Pages (from-to) | 1-15 |
| Number of pages | 15 |
| Journal | Insects |
| Volume | 11 |
| Issue number | 7 |
| Publication status | Published - 9 Jul 2020 |
Abstract
The western flower thrips ( Frankliniella occidentalis) is a serious pest in horticulture, feeding on leaf tissue and floral resources. Blue and yellow sticky traps are commonly used for monitoring and control in greenhouses. The mechanisms underlying the color preferences are largely unknown. The use of light-emitting diodes (LEDs) is a promising approach to increase the attractiveness of visual traps and to study the color choice behavior in insects. The color preferences of F. occidentalis were systematically investigated in a series of choice experiments with several LEDs from the ultraviolet (UV) and visible spectral range. Blue LEDs were most attractive, followed by green, while only a moderate attractiveness of UV was observed. Blue and green were identified as two separate attractive ranges. When light from blue and green LEDs was mixed, the attractiveness decreased compared to its single components. In conclusion, F. occidentalis exhibits two different wavelength specific behaviors towards blue and green. Compelling indications are provided that these behaviors are controlled by two photoreceptors maximally sensitive in the blue and green range with an inhibitory chromatic interaction between both. Since the known UV sensitive photoreceptor could be confirmed, a trichromatic photoreceptor setup is suggested for F. occidentalis. For advanced plant protection strategies, the results offer several opportunities to optimize monitoring or even develop mass trapping devices.
Keywords
- Action spectra, Chromatic interaction, Color preference, Color vision, LED, Light-emitting diode, Monitoring, Visual trap
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Insect Science
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In: Insects, Vol. 11, No. 7, 423, 09.07.2020, p. 1-15.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Wavelength-specific behavior of the Western Flower Thrips (Frankliniella occidentalis)
T2 - Evidence for a blue-green chromatic mechanism
AU - Stukenberg, Niklas
AU - Pietruska, Markus
AU - Waldherr, Axel
AU - Meyhöfer, Rainer
PY - 2020/7/9
Y1 - 2020/7/9
N2 - The western flower thrips ( Frankliniella occidentalis) is a serious pest in horticulture, feeding on leaf tissue and floral resources. Blue and yellow sticky traps are commonly used for monitoring and control in greenhouses. The mechanisms underlying the color preferences are largely unknown. The use of light-emitting diodes (LEDs) is a promising approach to increase the attractiveness of visual traps and to study the color choice behavior in insects. The color preferences of F. occidentalis were systematically investigated in a series of choice experiments with several LEDs from the ultraviolet (UV) and visible spectral range. Blue LEDs were most attractive, followed by green, while only a moderate attractiveness of UV was observed. Blue and green were identified as two separate attractive ranges. When light from blue and green LEDs was mixed, the attractiveness decreased compared to its single components. In conclusion, F. occidentalis exhibits two different wavelength specific behaviors towards blue and green. Compelling indications are provided that these behaviors are controlled by two photoreceptors maximally sensitive in the blue and green range with an inhibitory chromatic interaction between both. Since the known UV sensitive photoreceptor could be confirmed, a trichromatic photoreceptor setup is suggested for F. occidentalis. For advanced plant protection strategies, the results offer several opportunities to optimize monitoring or even develop mass trapping devices.
AB - The western flower thrips ( Frankliniella occidentalis) is a serious pest in horticulture, feeding on leaf tissue and floral resources. Blue and yellow sticky traps are commonly used for monitoring and control in greenhouses. The mechanisms underlying the color preferences are largely unknown. The use of light-emitting diodes (LEDs) is a promising approach to increase the attractiveness of visual traps and to study the color choice behavior in insects. The color preferences of F. occidentalis were systematically investigated in a series of choice experiments with several LEDs from the ultraviolet (UV) and visible spectral range. Blue LEDs were most attractive, followed by green, while only a moderate attractiveness of UV was observed. Blue and green were identified as two separate attractive ranges. When light from blue and green LEDs was mixed, the attractiveness decreased compared to its single components. In conclusion, F. occidentalis exhibits two different wavelength specific behaviors towards blue and green. Compelling indications are provided that these behaviors are controlled by two photoreceptors maximally sensitive in the blue and green range with an inhibitory chromatic interaction between both. Since the known UV sensitive photoreceptor could be confirmed, a trichromatic photoreceptor setup is suggested for F. occidentalis. For advanced plant protection strategies, the results offer several opportunities to optimize monitoring or even develop mass trapping devices.
KW - Action spectra
KW - Chromatic interaction
KW - Color preference
KW - Color vision
KW - LED
KW - Light-emitting diode
KW - Monitoring
KW - Visual trap
UR - http://www.scopus.com/inward/record.url?scp=85090717275&partnerID=8YFLogxK
U2 - 10.3390/insects11070423
DO - 10.3390/insects11070423
M3 - Article
C2 - 32659926
VL - 11
SP - 1
EP - 15
JO - Insects
JF - Insects
IS - 7
M1 - 423
ER -