Winter Is (Not) Coming: Is Climate Change Helping Drosophila suzukii Overwintering?

Biology, Год журнала: 2023, Номер 12(7), С. 907 - 907

Опубликована: Июнь 25, 2023

Anthropogenic challenges, particularly climate change-associated factors, are strongly impacting the behavior, distribution, and survival of insects. Yet how these changes affect pests such as Drosophila suzukii, a cosmopolitan pest soft-skinned small fruits, remains poorly understood. This polyphagous is chill-susceptible, with cold temperatures causing multiple stresses, including desiccation starvation, also challenging immune system. Since invasion Europe United States America in 2009, it has been rapidly spreading to several European American countries (both North South American) African Asian countries. However, globalization global warming allowing an altitudinal latitudinal expansion species, thus colonization colder regions. review explores D. suzukii adapts survive during seasons. We focus on overwintering strategies behavioral adaptations migration or sheltering, seasonal polyphenism, reproductive adaptations, well metabolic transcriptomic response cold. Finally, we discuss continuation change may promote ability this species spread, what mitigation measures could be employed overcome cold-adapted suzukii.

Язык: Английский

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Differential Attraction of Summer and Winter Morphs of Spotted Wing Drosophila, Drosophila suzukii, to Yeasts

Journal of Chemical Ecology, Год журнала: 2025, Номер 51(1)

Опубликована: Фев. 1, 2025

Abstract Drosophila suzukii is a pest of soft and stone fruits that attracted to yeast volatile metabolites. has distinct summer winter morphs which are found in different habitats. Complex communities yeasts likely differ between habitats thus we hypothesized their attraction volatiles from species combinations species. We presented D. with isolation combinations, as either post-culture mixes or co-cultured, measured activity the flies laboratory choice tests Locomotor Activity Monitor proxy for attraction. Candida zemplinina was more attractive than when cultured both sterile strawberry juice (SSJ) artificial culture media (YPD). No significant correlations were principle component scores derived single profiles fly activity. There also differential certain mixes, most notably post SSJ Hanseniaspora uvarum C. consistently morphs. Mixtures Metschnikowia pulcherrima + Pichia pijperi H. M. P. YPD preferred by morphs, whilst co-cultures . However, co-culturing did not enhance compared constituent morph. Differential suggests options new bait formulations integrated management strategies may be tailored better target

Язык: Английский

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Exploring the influence of habitat, ground refugia and behavioral strategies on the overwintering success of Drosophila suzukii, Matsumura

Pest Management Science, Год журнала: 2025, Номер unknown

Опубликована: Фев. 7, 2025

The overwintering biology of Drosophila suzukii is poorly understood. While thermal tolerance studies suggest that winter morphotype females likely survive harsh winters given physiological changes lead to cold-hardening, additional factors such as habitat selection are important but In the present study, we conducted a field study at three vineyard sites investigate selection, semi-field measure survival outcomes depending on various ground refugia, and laboratory evaluate vertical movement in response simulated flood conditions often observed winter. Our results showed things. First, was most abundant wooded areas vineyards near pomace piles. Few were captured itself even fewer winery facilities. Second, insulating cover straw beneficial improving survivability. Third, while during stable periods below freezing, warm-up where snow melts subsequently floods ground, fly mobility critical for survival. Cold acclimated flies active participants their environment, freezing temperatures, navigating changing landscape features adjusting position temperature conditions. data first time cold capable temperatures water levels rise level thaw events. Thus, behavior ecology D. more complex than previously thought, there several addition hardening contribute success. © 2025 Society Chemical Industry.

Язык: Английский

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Environmental conditions influencing seasonal population dynamics of Drosophila suzukii (Diptera: Drosophilidae) in mid‐latitude organic farms

Agricultural and Forest Entomology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Abstract The local population dynamics of an invasive species are important for determining proper management. Temporal and spatial distribution can influence monitoring treatment decisions, understanding climatic influences on size help predict peak numbers. Drosophila suzukii (Matsumara, 1931) is fruit pest, its seasonal vary across range. We conducted a three‐year trapping study with various modelling approaches to determine the environmental variables influencing D. all seasons in Kentucky, temperate state overwintering . Male female flies were active seasons, visiting traps located ground at plant height. Most caught wooded edge habitat crops only had more catches than forest during summer. Population was best predicted by general additive model that included average temperature 8 weeks before sampling relative humidity two sampling, which differs from other models have extremely low as most predictive weather variable. Our results indicate factors Kentucky differ those higher or lower latitudes. recommend leading up fruiting pest pressure. Further, our suggest optimal time monitor when temperatures exceed 21°C. Broadly, findings highlight need investigate these appropriate scale develop region‐specific management recommendations.

Язык: Английский

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Plant Domestication Alters the Nutritional Content of Guttation Droplets with Multi-Trophic Consequences

Journal of Chemical Ecology, Год журнала: 2025, Номер 51(3)

Опубликована: Апрель 30, 2025

Язык: Английский

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Investigating the inoculum dynamics of Cladosporium on the surface of raspberry fruits and in the air

Environmental Microbiology, Год журнала: 2024, Номер 26(3)

Опубликована: Март 1, 2024

Raspberry production is under threat from the emerging fungal pathogenic genus Cladosporium. We used amplicon-sequencing, coupled with qPCR, to investigate how fruit age, location within a polytunnel, polytunnel and sampling date affected epiphytic microbiome. Fruit age was most important factor impacting microbiome, followed by location. In contrast, were factors bacterial microbiome composition, date. The within-tunnel had small significant effect on no As ripened, diversity increased decreased. Cladosporium abundant fungus of accounting for nearly 44% all sequences. Rotorod air samplers study concentration airborne inoculum (quantified qPCR) varied between (inside outside polytunnel) time (daytime vs. nighttime). Quantified DNA significantly higher during day than night inside outside. This demonstrated dynamic nature raspberry microbiomes polytunnels, which will impact disease risks fruit.

Язык: Английский

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Survival and nutritional requirements for overwintering Drosophila suzukii (Diptera: Drosophilidae) in Kentucky

Environmental Entomology, Год журнала: 2023, Номер 52(6), С. 1071 - 1081

Опубликована: Сен. 16, 2023

The ability to cope with novel climates is a key determinant of an invasive species' success. Drosophila suzukii (Matsumura, 1931) fruit pest, and its seasonality varies across range. Current evidence suggests that D. occurs year-round in warmer but has low overwintering survival colder relies on refuges or reinvades each spring. Here, we assessed the capacity overwinter Kentucky, temperate mid-latitude state relatively mild variable winters. We tracked population changes for 3 yr observed highest populations early winter months. Following annual crash winter, small numbers flies remained through late also conducted outdoor cage studies determine extent which food resources microhabitat impact postwinter fecundity under natural conditions. Flies no had poor during warmest periods all treatments lower coldest month. Provisioning either artificial diet wild berries improved survival. As follow-up, determined whether could survive reproduce after long-term exposure typical temperature various berries. privet (Ligustrum sp.), berry types yielded higher than without food. Our results suggest noncrop play important role suzukii, as winters warm availability influence early-season populations.

Язык: Английский

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Flowering margins support natural enemies between cropping seasons

Frontiers in Agronomy, Год журнала: 2024, Номер 6

Опубликована: Янв. 22, 2024

Introduction Populations of natural enemies insect pests are declining owing to agricultural intensification and indiscriminate use pesticides, this may be exacerbated in systems that clear all margin plants after the cropping season for other uses such as fodder. Retaining a diversity non-crop flowering vegetation outside support more resilient effective pest regulation. Methods We tested potential fields across two locations harvesting primary crops lablab maize. Results A total 54 plant species were recorded sites Kenya with 59% them being annuals 41% perennials. There was significant seasonal variation richness (ANOVA: F 1, 16 = 33. 45; P < 0.0001) 7.20; 0.0511). While time since factor influencing overall abundance 2, 1,133 8.11; 0.0001), they generally higher or where observed. Discussion These findings demonstrate offer refuge alternative food potentially beneficial insects between seasons. The conservation lead regulation early following crop, thus reducing reliance on insecticides application.

Язык: Английский

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Effect of a sour cherry orchard on the population dynamics of Spotted Wing Drosophila in an adjacent elderberry plantation

Journal of Central European Agriculture, Год журнала: 2024, Номер 25(2), С. 433 - 443

Опубликована: Янв. 1, 2024

The Spotted Wing Drosophila (Drosophila suzukii Matsumura, 1931 - SWD) became a crucial pest of soft-skinned fruits in less than decade different continents, including Europe. larvae the polyphagous can develop within several food plants, wild and cultivated elderberry. Due to their high mobility, imagoes shift between orchards following ripening periods fruits. Our study aimed test this phenomenon neighbouring sour cherry elderberry plantations. swarming phenology SWD related drosophilid populations was monitored by trapping using bottle traps with apple cider vinegar as lure. At same time, fruit infestation rates were determined rearing flies from collected results have shown that emerged great numbers remnants early colonised plantation its adjacent side. According our results, early-ripening are essential sources for late orchards; thus, eliminating residues may lower rate

Язык: Английский

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Landscape effects on seasonal abundance of Drosophila suzukii and its parasitoids in California cane berry fields

Agricultural and Forest Entomology, Год журнала: 2024, Номер unknown

Опубликована: Окт. 30, 2024

Abstract Spotted wing drosophila, Drosophila suzukii , has become a major pest of soft‐skinned fruit crops in the Americas, Europe and North Africa. In many regions, D. management is complicated by fly's ability to persist on non‐crop hosts then invade or reinvade crop fields from surrounding natural habitats. California, habitats adjacent commercial cane berry often contain wild blackberry ( Rubus spp.), potential overwintering host for . We sampled its naturally occurring parasitoids (the pupal Trichopria drosophilae Pachycrepoideus vindemmiae ) habitat throughout year, determine whether seasonal year‐round refuge numbers are dependent composition landscape. Numbers adults were consistently higher habitat, proportions female highest fields, indicating that females dispersed more widely than males. The effect diversity was positive fall negative early spring, possibly reflecting differing requirements over time. Parasitoid also positively affected cropland summer. Results indicate both parasitoids, landscape effects abundance can change seasons.

Язык: Английский

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