Comparison of attractants for monitoring <i>Drosophila suzukii</i> in sweet cherry orchards in Italy

Tonina, Lorenzo; Grassi, A.; Caruso, S.; Mori, Nicola; Gottardello, A.; Anfora, G.; Giomi, Folco; Vaccari, G.; Ioriatti, C.

doi:10.1111/jen.12416

Cited by 41 publications

(42 citation statements)

References 23 publications

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“…yeast bait lures and commercial baits that have been shown to have selectivity ranging from ca. 6-40% (Burrack et al, 2015;Kirkpatrick et al, 2017;Tonina et al, 2018)in raspberries and blueberries. Additionally, selectivity tends to increase over the 8week trapping period for both years in both the blueberry field and wooded area (Tables 4, 7).…”

Section: Discussionmentioning

confidence: 99%

Controlled-Release Dispenser and Dry Trap Developments for Drosophila suzukii Detection

et al. 2020

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The spotted wing drosophila (SWD), Drosophila suzukii, is an exotic vinegar fly originating from SouthEast Asia and has invaded many American and European countries. This devastating pest has caused severe damage on soft-skinned fruit crops, which has resulted in large economic losses. Although many D. suzukii detection devices have been developed and used by growers/farmers in orchards, most of them did not meet their expectation. More simple, convenient, and efficient detection tools are still urgently needed so that growers/farmers can make timely management decision. In our previous study a quinary blend, containing acetoin, as a long-range, and ethyl octanoate, as a short-range attractant for SWD, had been identified. In this study, a controlled-release polyethylene dispenser containing five identified attractants: acetoin, ethyl octanoate, ethyl acetate, phenethyl alcohol, and acetic acid, was tested in laboratory conditions for release rates, as well as in a blueberry field and an adjacent wooded area for trapping activity. Release of the most D. suzukii attractants from the polyethylene dispenser was constant. In the laboratory, release rates of ethyl acetate (0.3 g/day over 14 days), phenethyl alcohol (0.0054 g/day over 36 days), and acetic acid (0.13 g/day over 36 days) followed zero order kinetics. Acetoin and ethyl octanoate were blended together and had a varied release rate. In the field, dry and liquid traps baited with the optimized controlled-release dispenser were evaluated and compared with liquid traps baited with apple cider vinegar (ACV). During blueberry harvest season in 2018, the liquid traps containing drowning solution baited with the optimized controlledrelease dispenser caught both male and female D. suzukii 2 weeks earlier and had significantly higher selectivity than that of ACV traps in the field. Additionally, in 2019 field tests, dry traps baited with the controlled-release dispenser demonstrated earlier detection compared to the ACV traps. Due to the simplicity of the dry trap design and easy processing, it has great potential to be an efficient and convenient D. suzukii detection tool for growers/farmers.

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Section: Discussionmentioning

confidence: 99%

Controlled-Release Dispenser and Dry Trap Developments for Drosophila suzukii Detection

et al. 2020

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“…The persistence of the marking of D. suzukii with the Radglo ® TP-series fluorescent pigments by the "Shaking" technique under different trapping and storage conditions was assessed; in addition, it was tested how these conditions can affect contaminations between marked and unmarked specimens. Traps for D. suzukii typically contain ACV, red wine, or a combination of both as a bait/drowning solution [9,[59][60][61][62][63][64][65][66][67][68][69][70][71][72], whereas traps containing lure dispensers can either be dry (if a killing agent is present in the trap, see Section 2.3.2) [56,58,73] or contain water as a drowning solution [64,[74][75][76]. Trapped insects are typically stored in ethanol.…”

Section: Persistence Of Marks During Trapping or Storagementioning

confidence: 99%

Marking Drosophila suzukii (Diptera: Drosophilidae) with Fluorescent Dusts

Clymans

Kerckvoorde²,

Beliën³

et al. 2020

Insects

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The marking of Drosophila suzukii can be an important instrument for studying the ecology and behaviour of this economically important fruit pest, aiding the development of new Integrated Pest Management (IPM) tools or strategies. There is, however, a need for a cost-effective methodology that provides an easily detectable and stable mark. Whereas fluorescent pigment powders are often used in entomological research, the pigments (series, dyes), application techniques, or doses need to be evaluated for each studied species in terms of their efficacy and possible adverse effects on the performance of the insect. The effectiveness of different application techniques and dyes (RadGlo ® TP-series) and their effect on the survival of adult D. suzukii were investigated in the laboratory. Furthermore, the influence of the marking on the behaviour of the flies was examined in laboratory trap assays (olfaction) and a field recapture study (general orientation). The persistence and detectability of the marks was evaluated both on living flies (for different application techniques) and dead flies under trapping/storage conditions. The use of fluorescent powders to mark D. suzukii flies yielded a clearly detectable and highly persistent mark, without any adverse effects on the survival and behaviour of the flies. Insects 2020, 11, 152 2 of 20The spotted wing Drosophila, Drosophila suzukii Matsumura (Diptera: Drosophilidae), native to Asia [5][6][7], has become a worldwide invasive pest of soft-skinned fruit crops over the last decade [8][9][10][11][12][13][14]. Studies on the ecology and behaviour of the species can yield new insights allowing the improvement or development of management strategies. Various methods for marking D. suzukii flies have been proposed and further optimised. An immunomarking technique (i.e., the use of proteins as markers and detection by enzyme-linked immuno-sorbent assays (ELISA) [15]) for both topical application and acquisition of residues on leaves was tested and optimised by Klick et al. in a series of laboratory and semi-field experiments [16]. What makes this technique unique is that vast areas can be sprayed with inexpensive proteins and that detection by ELISA is fairly sensitive to the acquisition of leaf residues. The disadvantages of immunomarking are the possibility of both false positives and false negatives [17], the need for individual analyses of specimens, and the costs and labour required for detection. Trace elements and stable isotopes can be administered to plants to act as systemic markers for herbivorous insects, an approach that was evaluated for D. suzukii with Rb and 15 N. [18]. The added value of these systemic markers lies in the fact that larvae are self-marked while developing inside the host fruits, enabling the linkage of captured adults to their source of larval development [18]. Methods of self-marking are particularly interesting for MC studies in which whole areas or plants are marked, instead of marking the (captured/reared) insects before release. For MR and M...

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“…Most commonly this is done using olfactory cues, for example, sex or aggregation pheromones which attract pests into a trap or away from the crop 8 . Currently, mass traps using non-species-specific fermenting baits are employed around crops to reduce populations in wild habitats but these are not effective within the crop once it is fruiting 9 . Another approach might be to interfere with visual cues via spectral modifications to greenhouse cladding materials.…”

Section: Introductionmentioning

confidence: 99%

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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Comparison of attractants for monitoring Drosophila suzukii in sweet cherry orchards in Italy

Cited by 41 publications

References 23 publications

Controlled-Release Dispenser and Dry Trap Developments for Drosophila suzukii Detection

Controlled-Release Dispenser and Dry Trap Developments for Drosophila suzukii Detection

Marking Drosophila suzukii (Diptera: Drosophilidae) with Fluorescent Dusts

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

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