Effect of Color and Contrast of Highbush Blueberries to Host-Finding Behavior by Drosophila suzukii (Diptera: Drosophilidae)

Little, Catherine M.; Chapman, Thomas; Hillier, N. Kirk

doi:10.1093/ee/nvy102

Cited by 20 publications

(25 citation statements)

References 37 publications

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“…Volatile organic compounds associated with ripening fruits and naturally occurring yeasts have been widely acknowledged as key factors in host-finding behaviour for Drosophila species, including D. suzukii 20–22 . Visual cues are also important to host-finding behaviour 23 . To that end, monitoring traps in use for D. suzukii are red or employ a combination of black and red 24–27 .…”

Section: Introductionmentioning

confidence: 99%

“…Thus, it is probable that visual sensitivity ranges are similar between D. suzukii and D. melanogaster . We previously demonstrated that D. suzukii are highly attuned to changes in foliage colors and are attracted to fruit colors which color contrast against foliage colors 23 . This suggests that color contrast between foreground and background colors, as is found between fruit and foliage, may be a key factor in host-finding behaviour.…”

Section: Introductionmentioning

confidence: 99%

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Color preference of the spotted wing Drosophila, Drosophila suzukii

Little

Rizzato

Charbonneau

et al. 2019

Sci Rep

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Drosophila suzukii Matsumura (Diptera: Drosophilidae) is a significant invasive pest in soft-skin fruits and berries in Asia, Europe, and North and South America. Many herbivorous insects use multiple cues for host selection, particularly olfactory and visual stimuli. The visual system of closely-related Drosophila melanogaster is well-documented, expressing strong sensitivity to short-wavelength colors (ultraviolet to green) and only limited sensitivity to long-wavelength colors (red to infrared). Our results suggest that D. suzukii have limited ability to distinguish red consistent with visual sensitivity range within the melanogaster subgroup. We propose that color contrast rather than color appearance may be of greater importance in orientation and attraction. We propose that differences in reflectance between light wavelengths important for color opponency are key to color discrimination to provide color contrast between foreground and background, as occurs between fruit and foliage, during host-finding.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Color preference of the spotted wing Drosophila, Drosophila suzukii

Little

Rizzato

Charbonneau

et al. 2019

Sci Rep

Self Cite

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“…In the blueberry cloche experiment where fruits were introduced on a Petri dish and not with background plant foliage, D. suzukii successfully laid eggs. It is possible that D. suzukii locates fruit visually by colour contrast (with plant foliage) as suggested by Little et al (2018) 29 rather than colour appearance. From their experiments D. suzukii had a limited ability to comprehend red.…”

Section: Discussionmentioning

confidence: 93%

“…From their experiments D. suzukii had a limited ability to comprehend red. Female D. suzukii were attracted to purple sticky discs (5 cm) on a white background 29 . In another similar recent study red, purple, and black disks were more attractive when presented against a white background.…”

Section: Discussionmentioning

confidence: 99%

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The use of light spectrum blocking films to reduce populations of Drosophila suzukii Matsumura in fruit crops

Fountain¹,

Badiee

Hemer

et al. 2020

Sci Rep

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Spotted wing drosophila, Drosophila suzukii, is a serious invasive pest impacting the production of multiple fruit crops, including soft and stone fruits such as strawberries, raspberries and cherries. Effective control is challenging and reliant on integrated pest management which includes the use of an ever decreasing number of approved insecticides. New means to reduce the impact of this pest that can be integrated into control strategies are urgently required. In many production regions, including the UK, soft fruit are typically grown inside tunnels clad with polyethylene based materials. These can be modified to filter specific wavebands of light. We investigated whether targeted spectral modifications to cladding materials that disrupt insect vision could reduce the incidence of D. suzukii. We present a novel approach that starts from a neuroscientific investigation of insect sensory systems and ends with infield testing of new cladding materials inspired by the biological data. We show D. suzukii are predominantly sensitive to wavelengths below 405 nm (ultraviolet) and above 565 nm (orange & red) and that targeted blocking of lower wavebands (up to 430 nm) using light restricting materials reduces pest populations up to 73% in field trials.

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Modifications of plant microclimate by plastic mulches reduces Drosophila suzukii infestation

McIntosh,

Smith,

Weissner

et al. 2024

J Pest Sci

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Spotted-wing drosophila, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae), is one of the most detrimental pests of small fruit crops worldwide and its control relies heavily on pesticides, so there is a need to develop alternative management practices. Cultural practices that make the microclimate hotter, drier, and brighter than optimal conditions for the pest may be highly effective. In this two-year study, we evaluated how black, white, and metallic plastic mulches in uence the raspberry plants' microclimate to reduce D. suzukii larval infestation of fruit in the canopy and increase mortality of fallen larvae and pupae on the ground. All three plastic mulches reduced D. suzukii larval infestation of fruit by 40-72% and killed 80-100% of larvae and pupae placed on the mulch surface. The mechanisms at play are likely the compounded effects of increased ultraviolet (UV) light, hotter and drier conditions in the low canopy, and hot mulch surface temperature. UV light may be especially important since it reduced D. suzukii oviposition in the lab. Overall, plastic mulches can effectively modify the microclimate to make it less favorable for D. suzukii, reducing infestation in fruit and on the ground. Key MessageWe evaluated the mechanisms by which plastic mulches reduce Drosophila suzukii larval infestation Larvae in fruit were reduced by 40-72%, mortality of larvae and pupae on the ground was 80-100%UV light was increased by plastic mulches in the eld and reduced D. suzukii oviposition in the lab The mulches made the low canopy warmer and drier, and increased ground surface temperature Plastic mulches modify the canopy and ground microclimate enough to reduce D. suzukii infestation

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Effect of Color and Contrast of Highbush Blueberries to Host-Finding Behavior by Drosophila suzukii (Diptera: Drosophilidae)

Cited by 20 publications

References 37 publications

Color preference of the spotted wing Drosophila, Drosophila suzukii

Color preference of the spotted wing Drosophila, Drosophila suzukii

The use of light spectrum blocking films to reduce populations of Drosophila suzukii Matsumura in fruit crops

Modifications of plant microclimate by plastic mulches reduces Drosophila suzukii infestation

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