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Evaluation of hop (Humulus lupulus) as a repellent for the management of Drosophila suzukii

Authors: Reher, Thomas; Van Kerckvoorde, Vincent; Verheyden, Loes; Wenseleers, Tom; Beliën, Tim; Bylemans, Dany; Martens, Johan A.;

Evaluation of hop (Humulus lupulus) as a repellent for the management of Drosophila suzukii

Abstract

Abstract Over the past decade, the spotted-wing drosophila, Drosophila suzukii Matsumara has become one of the most important pests of soft- and stone fruits throughout Europe. Currently, the majority of growers still rely heavily on a limited portfolio of chemical foliar spray insecticides. Alternative strategies such as attract and kill (pull) or behavioral control systems that repel or deter D. suzukii from damaging fruits (push) are less common. We evaluated the potential of hop (Humulus lupulus L.), as a repellent for the Integrated Pest Management of D. suzukii, in controlled greenhouse conditions as well as at commercial field sites. In greenhouse cage tests on fruit or attractant medium, the positive controls thymol and 1-octen-3-ol as well as certain hops significantly reduced larval infestation levels compared to an untreated control, while other hop products showed only numerical reduction in infestation. A controlled field trial on raspberries (Rubus idaeus L.) failed to replicate these results, both for the positive control repellents as for the hop samples. In field experiments in commercial raspberry and blackberry (Rubus fruticosus L.) plantations, no significant reduction in oviposition or differences in population density could be observed for the hop treated plots as compared to the untreated. Through SPME headspace analysis of the hops, a number of compounds were associated with the efficacy observed in the greenhouse, even though different hop varieties were found to have notably different volatile profiles.

Country
Belgium
Related Organizations
Keywords

Insecta, Arthropoda, Behavioral control, INVASION, 0703 Crop and Pasture Production, Asian fruit fly, DIPTERA DROSOPHILIDAE, SPME GC-MS, Spotted-wing drosophila, BETA-ACIDS, 3004 Crop and pasture production, Headspace analysis, flies, Animalia, Taxonomy, PLANT ESSENTIAL OILS, Science & Technology, Diptera, MATSUMURA, Agriculture, Biodiversity, Agronomy, Field experiment, SPOTTED-WING DROSOPHILA, OVIPOSITION DETERRENT, MAJOR COMPONENTS, fruit flies, 3108 Plant biology, IPM, VOLATILES, Life Sciences & Biomedicine, Entomology, RESPONSES

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    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    20
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
20
Top 10%
Top 10%
Top 10%
Green
bronze