Fallen fruit: A backup resource during winter shaping fruit fly communities

Agricultural and Forest Entomology, Journal Year: 2024, Volume and Issue: 26(2), P. 232 - 248

Published: Jan. 6, 2024

Abstract Fallen fruits provide important feeding and breeding substrates for insects such as Drosophilidae can be a potential trophic reservoir when usual host become scarce. Recently, two invasive fruit fly species, Drosophila suzukii Chymomyza amoena , have established in Europe are expected to alter existing communities. In this study, carried out between September 2021 April 2022 northern France, we aimed disentangle the relative roles of microclimatic, landscape local factors driving diversity community decaying across seasons. Minimum site temperature during week preceding sampling proportion rotten tissue had strongest positive influence on abundance species richness. also increased with urbanisation (portion building cover) around sampled trees. Decaying apples were sites C. seasons, but provided suboptimal substrate D. which was only present late summer. This study sheds light role unharvested fallen crop maintaining an insect family that is generally overlooked field studies. It emphasises importance considering multiple scales studying interactions native their shared resources. Finally, our data highlight recycling agricultural waste.

Language: Английский

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Factors influencing oviposition behaviour of the invasive pest, Drosophila suzukii, derived from interactions with other Drosophila species: potential applications for control

Pest Management Science, Journal Year: 2023, Volume and Issue: 79(11), P. 4132 - 4139

Published: July 30, 2023

Drosophila suzukii (Matsumura) or spotted wing is a worldwide invasive pest of soft- and stone-fruit production. Female D. lay their eggs in ripening fruit the hatched larvae damage from inside, rendering it unmarketable causing significant economic loss. Current methods to reduce population field primarily rely on chemical insecticides which are not sustainable long-term solution increase risk resistance developing. Several studies demonstrate that when encounter coexist with other food source, this usually disadvantage suzukii, leading reduced oviposition increased larval mortality. These effects have potential be exploited management perspective. In review we summarise recent research articles focusing interspecific interactions between species aimed at understanding how drives behaviour. Potential semiochemical microbiome impacts postulated as determinants Development control practices reducing populations deterring them laying by utilising factors drive behaviour discussed. © 2023 The Authors. Pest Management Science published John Wiley & Sons Ltd behalf Society Chemical Industry.

Language: Английский

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Neotropical Flora’s Contribution to the Development of Biorational Products for Drosophila suzukii Control

Neotropical Entomology, Journal Year: 2024, Volume and Issue: 53(2), P. 400 - 414

Published: Jan. 12, 2024

Language: Английский

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Winter fruit contribution to the performance of the invasive fruit fly Drosophila suzukii under different thermal regimes

Insect Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Polyphagous insect species develop using multiple host plants. Often considered beneficial, polyphagy can also be costly as nutritional quality may vary. Drosophila suzukii (Matsumura) is an invasive that on numerous fruit over the annual cycle. Here, we assessed contribution of winter-available to development seasonal populations D. suzukii, under fluctuating late winter/early spring temperature regimes. We infested artificial diet and three suitable available in (Aucuba japonica, Elaeagnus ×submacrophylla, Viscum album) with larvae regimes: constant 20 °C, controlled regime 8-15 °C (12 h light at 8 12 dark 15 °C), uncontrolled outdoor during spring. As expected, fly performance was impaired by early spring-like environmental conditions, whatever diet, winter were suboptimal diets compared thermal regime. However, cold regimes, ranking supporting best changed, highlighting occurrence physiological trade-offs. Winter-acclimated females preferentially oviposited A. japonica and/or E. regime, which does not support preference-performance hypothesis. This finding discussed context management strategies.

Language: Английский

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Ecofriendly control of Drosophila suzukii via the photoinsecticide chlorophyllin

Pest Management Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 9, 2025

Abstract BACKGROUND Drosophila suzukii is an invasive pest causing high losses of agricultural crops. Conventional treatment strategies are considered problematic for their risk inducing resistance and environmental harm. Photodynamic Inactivation (PDI) based on the photosensitizer‐mediated light‐dependent generation reactive oxygen species. Natural food‐grade photosensitizers, such as food additive sodium magnesium chlorophyllin (Chl, E140), have been proven effective against microbial pathogens several pests. The aim this study to assess whether principle Chl‐based PDI D. could be transferred from laboratory towards practical conditions. RESULTS We prove that photokilled after feeding 5 mM Chl with 3% sucrose (98.4% median moribundity, 9 h drug light interval, 78.9 J/cm 2 radiant exposure). Therefore, aspects safety feasibility were assessed, using streamlined variations same assay: required photosensitizer concentration reduced 0.5 (90.1% moribundity 6 days 315.6 illumination LEDs). was photoactivable sunlight (92.5% 294.5 1 Chl). Offering alternative lures did not impair effect. Photobleaching rendered non‐toxic (2.5% bleaching subsequent 157.8 ). Furthermore, fluorescence microscopy Chl‐fed flies confirmed accumulation in flies' intestines. CONCLUSION Our findings demonstrate harnessed a safe management © 2025 Author(s). Pest Management Science published by John Wiley & Sons Ltd behalf Society Chemical Industry.

Language: Английский

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Drosophila X virus-like particles as efficient dsRNA carriers for improved RNAi against the invasive species, Drosophila suzukii

Journal of Pest Science, Journal Year: 2023, Volume and Issue: 97(1), P. 429 - 443

Published: June 12, 2023

Language: Английский

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The influence of Acetobacter pomorum bacteria on the developmental progression of Drosophila suzukii via gluconic acid secretion

Molecular Ecology, Journal Year: 2023, Volume and Issue: 33(2)

Published: Nov. 10, 2023

Abstract Insects are rich in various microorganisms, which play diverse roles affecting host biology. Although most Drosophila species prefer rotten fruits, the agricultural pest suzukii attacks ripening fruits before they harvested. We have reported that microbiota has positive and negative impacts on D. nutrient‐poor ‐rich diets, respectively. On microbes provide protein to facilitate larval development. But how impede development nutrient‐rich diets is unknown. Here we report Acetobacter pomorum (Apo), a commensal bacterium many rotting fruit, several detrimental effects . Feeding larvae containing live Apo significantly delayed reduced body weight of emerged adults. induced immune responses downregulated genes digestion juvenile hormone metabolism. Knockdown these germ‐free reproduced Apo‐like weakened phenotypes. was confirmed secrete substantial amounts gluconic acid. Adding acid diet hindered growth decreased adult weight. Moreover, dose adversely affected did not negatively affect melanogaster , suggesting less tolerant than Taken together, findings indicate by acid, may explain why it prefers fruit over Apo‐rich fruit. These results show an insect's tolerance can influence its ecological niche.

Language: Английский

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Surveys of Drosophila suzukii (Diptera: Drosophilidae) and Its Host Fruits and Associated Parasitoids in Northeastern China

Insects, Journal Year: 2022, Volume and Issue: 13(4), P. 390 - 390

Published: April 15, 2022

Spotted-wing drosophila, Drosophila suzukii (Matsumura), is a worldwide quarantine pest that currently undergoing rapid range expansion in the Americas, Europe, and parts of Africa. It feeds breeds on soft-skinned fruits such as raspberries, blueberries, cherries, can cause significant economic losses to fruit production. This study investigated occurrence D. its wild host parasitoids Liaoning, Northeast China for first time. Sentinel traps were used monitor adults, suspected collected weekly four different locations (Wafangdian, Faku, Fengcheng, Shenyang). The results showed distributed sweet fruit-production areas raspberry was most infested fruit. During field survey, species berries from non-crop habitats found by suzukii, two (Leptopilina japonica Asobara japonica) collected. adult-population dynamics throughout survey period (June October) similar locations; adult fly populations increased peaked August, then declined until no longer detectable October.

Language: Английский

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Drosophila suzukii preferentially lays eggs on spherical surfaces with a smaller radius

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: Sept. 22, 2022

Abstract Drosophila suzukii is an agricultural pest that predominantly harms small fruits, having a serrated ovipositor able to pierce the skin of ripening fruits. Its oviposition preference has been studied from various aspects including chemical and physical properties substrates. However, its for certain shapes or sizes substrates not explored. In this study, we tested D. artificial with different surface curvatures using 27 strains recently established wild populations collected in Japan. We found laid more eggs on smaller radii (4.8 5.7 mm) compared larger (7.7 9.6 mm). also most preferred radius differed among strains. Notably, was independent volume substrates, suggesting uses curvature as cue site selection. These results provide additional explanation why preferentially fruits sites.

Language: Английский

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Invasive Drosophila suzukii outnumbers native controphics and causes substantial damage to fruits of forest plants

NeoBiota, Journal Year: 2022, Volume and Issue: 77, P. 39 - 77

Published: Oct. 18, 2022

Impacts of biological invasions are diverse and can have far-reaching consequences for ecosystems. The spotted wing drosophila, Drosophila suzukii , is a major invasive pest fruits, which negatively affects fruit wine production. However, little known about the ecological impact this fly species on more natural ecosystems it has invaded, such as forests. In study, we investigated use potential host plants by D. at 64 sites in different forest communities Switzerland from mid-June to mid-October 2020. We examined than 12,000 fruits egg deposits assess its direct plants. recorded symptoms decay after deposition determine if attacks trigger decay. addition, monitored drosophilid fauna with cup traps baited apple cider vinegar, expected that would outnumber potentially outcompete native controphics, especially other drosophilids. Egg were found 31 39 plant studied, 18 showing an attack rate > 50%. Overall, Cotoneaster divaricatus (96%), Atropa bella-donna (91%), Rubus fruticosus corylifolius aggr. Frangula alnus (85%) Sambucus nigra (83%) attacked particularly frequently, resulting also high predicted probabilities varied among communities. Later longer fruiting, black colour, larger size higher pulp pH all positively affected rates. More 50% showed severe deposition, sugar content leading symptoms. observed was reflected abundance dominance trap catches, independent community elevation. far most abundant species, accounting 86% (81,395 individuals) associated Our results indicate competes strongly frugivorous presence might ecosystem-level consequences. rapid leads loss resources may disrupt seed-dispersal mutualisms through reduced consumption dispersers birds.

Language: Английский

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