Author:
Lopez-Reyes Karla,Lankheet Martin J.,van Tol Robert W. H. M.,Butler Ruth C.,Teulon David A. J.,Armstrong Karen F.
Abstract
AbstractReal-time 3D tracking and high-speed videography was used to examine the behaviour of a worldwide greenhouse pest, the western flower thrips (WFT), in response to different colours in the context of improving trap design. Measurements were taken of the number of landings on, and flight activity near, a lamp containing two LEDs of either the same colour or a combination of two colours presented side by side. Main findings show that landing patterns of WFT are different between colours, with landings on UV(+ red) as highly attractive stimulus being mostly distributed at the bottom half of the lamp, while for yellow also as very attractive and green as a ‘neutral’ stimulus, landings were clearly on the upper rim of the lamp. Additionally, a positive interaction with the UV-A(+ red) and yellow combination elicited the highest number of landings and flight time in front of the LED lamp. Conversely, a negative interaction was observed with decreased landings and flight time found for yellow when blue was present as the adjacent colour. Overall, differences between treatments were less obvious for flight times compared to number of landings, with tracking data suggesting that WFT might use different colours to orientate at different distances as they approach a visual stimulus.
Funder
Bio-Protection Research Centre
Wageningen University and Research
Topsector Tuinbouw & Uitgangsmaterialen
Plant and Food Research
Better Border Biosecurity, B3
Publisher
Springer Science and Business Media LLC
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