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Xu L, Jiang HB, Yu JL, Wang JJ. Plasticity of the olfactory behaviors in Bactrocera dorsalis under various physiological states and environmental conditions. CURRENT OPINION IN INSECT SCIENCE 2024; 63:101196. [PMID: 38555081 DOI: 10.1016/j.cois.2024.101196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024]
Abstract
Insects rely heavily on their olfactory system for various behaviors, including foraging, mating, and oviposition. Numerous studies have demonstrated that insects can adjust their olfactory behaviors in response to different physiological states and environmental conditions. This flexibility allows them to perceive and process odorants according to different conditions. The Oriental fruit fly, Bactrocera dorsalis, is a highly destructive and invasive pest causing significant economic losses to fruit and vegetable crops worldwide. The olfactory behavior of B. dorsalis exhibits strong plasticity, resulting in its successful invasion. To enhance our understanding of B. dorsalis' olfactory behavior and explore potential strategies for behavior control, we have reviewed recent literature on its olfactory plasticity and potential molecular mechanisms.
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Affiliation(s)
- Li Xu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Hong-Bo Jiang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Jie-Ling Yu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Jin-Jun Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China; Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China.
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2
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Dettler MA, Barrientos GN, Ansa MA, Martínez E, Vazquez FA, Santadino MV, Coviella CE, Riquelme Virgala MB. A Performance Index as a Measure of the Host Suitability to Drosophila suzukii Matsumura (Diptera: Drosophilidae). NEOTROPICAL ENTOMOLOGY 2024; 53:29-37. [PMID: 37831358 DOI: 10.1007/s13744-023-01090-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 09/29/2023] [Indexed: 10/14/2023]
Abstract
Drosophila suzukii Matsumura, known as spotted wing drosophila (SWD), is an Asiatic invasive fruit pest that has spread over the world in the last 15 years, due to its high reproductive rate, its tolerance to different environmental conditions, the international fruit trade, and its wide range of host plants. In Buenos Aires, Argentina, blueberry is a major susceptible crop, although other cultivated and non-cultivated fruit species are frequent. The aim of this study was to evaluate the host suitability of commercial and non-cultivated fruit species (blueberries, plums, mulberries, and cherries) at two stages of maturity by estimating an index that takes into account biological and biometric parameters. The development and survival of SWD cohorts reared on different fruits were followed from egg to adult emergence. Then, adults were sexed and some biometric traits were measured. The indices: Wing loading, Wing aspect, and the Relative Performance Index (RPI) were estimated. The shortest developmental time and the maximum egg to adult survival were observed in the specimens developed in mulberry, in both stages of maturity. Only the length of the thorax showed significant differences between treatments in both sexes, and the largest adults were those reared in the ripe mulberries. The RPI, which relates performance and biometric variables, was the best index to evaluate the host suitability of SWD. So, it could be used as an indicator of the nutritional quality of fruits available in a region and to evaluate the importance of alternative hosts in the population dynamic of SWD.
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Affiliation(s)
- María Antonela Dettler
- Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina.
- Grupo de Investigación de Bioecología de Artrópodos de Importancia Agrícola, Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina.
| | - Gualterio Nicolas Barrientos
- Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina
- Grupo de Investigación de Bioecología de Artrópodos de Importancia Agrícola, Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina
| | - María Agustina Ansa
- Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina
- Grupo de Investigación de Bioecología de Artrópodos de Importancia Agrícola, Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina
- Instituto de Ecología y Desarrollo Sustentable (UNLu-CONICET), Luján, Buenos Aires, Argentina
- Facultad de Agronomía, Universidad Nacional de Buenos Aires (FAUBA), Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Emilia Martínez
- Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina
- Grupo de Investigación de Bioecología de Artrópodos de Importancia Agrícola, Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina
- Instituto de Ecología y Desarrollo Sustentable (UNLu-CONICET), Luján, Buenos Aires, Argentina
| | - Florencia Anabella Vazquez
- Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina
- Grupo de Investigación de Bioecología de Artrópodos de Importancia Agrícola, Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina
- Insectario de Investigaciones en Lucha Biológica (IMYZA-INTA), Castelar, Buenos Aires, Argentina
| | - Marina Vilma Santadino
- Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina
- Grupo de Investigación de Bioecología de Artrópodos de Importancia Agrícola, Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina
- Instituto de Ecología y Desarrollo Sustentable (UNLu-CONICET), Luján, Buenos Aires, Argentina
| | - Carlos Eduardo Coviella
- Grupo de Investigación de Bioecología de Artrópodos de Importancia Agrícola, Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina
- Instituto de Ecología y Desarrollo Sustentable (UNLu-CONICET), Luján, Buenos Aires, Argentina
- Departamento de Ciencias Básicas, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina
| | - María Begoña Riquelme Virgala
- Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina
- Grupo de Investigación de Bioecología de Artrópodos de Importancia Agrícola, Departamento de Tecnología, Universidad Nacional de Luján, Luján, Buenos Aires, Argentina
- Instituto de Ecología y Desarrollo Sustentable (UNLu-CONICET), Luján, Buenos Aires, Argentina
- Facultad de Agronomía, Universidad Nacional de Buenos Aires (FAUBA), Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
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3
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Tungadi TD, Powell G, Shaw B, Fountain MT. Factors influencing oviposition behaviour of the invasive pest, Drosophila suzukii, derived from interactions with other Drosophila species: potential applications for control. PEST MANAGEMENT SCIENCE 2023; 79:4132-4139. [PMID: 37516913 PMCID: PMC10952728 DOI: 10.1002/ps.7693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 06/16/2023] [Accepted: 07/30/2023] [Indexed: 07/31/2023]
Abstract
Drosophila suzukii (Matsumura) or spotted wing Drosophila is a worldwide invasive pest of soft- and stone-fruit production. Female D. suzukii lay their eggs in ripening fruit and the hatched larvae damage fruit from the inside, rendering it unmarketable and causing significant economic loss. Current methods to reduce D. suzukii population in the field primarily rely on chemical insecticides which are not a sustainable long-term solution and increase the risk of resistance developing. Several studies demonstrate that when D. suzukii encounter or coexist with other Drosophila on a food source, this is usually a disadvantage to D. suzukii, leading to reduced oviposition and increased larval mortality. These effects have potential to be exploited from a pest management perspective. In this review we summarise recent research articles focusing on the interspecific interactions between D. suzukii and other Drosophila species aimed at understanding how this drives D. suzukii behaviour. Potential semiochemical and microbiome impacts are postulated as determinants of D. suzukii behaviour. Development of control practices focusing on reducing D. suzukii populations and deterring them from laying eggs by utilising factors that drive their behaviour are discussed. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
| | | | - Bethan Shaw
- NIABCambridgeUK
- New Zealand Institute for Plant and Food Research LtdAucklandNew Zealand
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4
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Puppato S, Fiorenza G, Carraretto D, Gomulski LM, Gasperi G, Caceres C, Grassi A, Mancini MV, De Cristofaro A, Ioriatti C, Guilhot R, Malacrida AR. High promiscuity among females of the invasive pest species Drosophila suzukii. Mol Ecol 2023; 32:6018-6026. [PMID: 37804145 DOI: 10.1111/mec.17161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 09/14/2023] [Accepted: 09/25/2023] [Indexed: 10/09/2023]
Abstract
Drosophila suzukii (Matsumura, 1931), the spotted-wing drosophila, is a highly invasive fruit fly that spread from Southern Asia across most regions of Asia and, in the last 15 years, has invaded Europe and the Americas. It is an economically important pest of small fruits such as berries and stone fruits. Drosophila suzukii speciated by adapting to cooler, mountainous, and forest environments. In temperate regions, it evolved seasonal polyphenism traits which enhanced its survival during stressful winter population bottlenecks. Consequently, in these temperate regions, the populations undergo seasonal reproductive dynamics. Despite its economic importance, no data are available on the behavioural reproductive strategies of this fly. The presence of polyandry, for example, has not been determined despite the important role it might play in the reproductive dynamics of populations. We explored the presence of polyandry in an established population in Trentino, a region in northern Italy. In this area, D. suzukii overcomes the winter bottleneck and undergoes a seasonal reproductive fluctuation. We observed a high remating frequency in females during the late spring demographic explosion that led to the abundant summer population. The presence of a high degree of polyandry and shared paternity associated with the post-winter population increase raises the question of the possible evolutionary adaptive role of this reproductive behaviour in D. suzukii.
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Affiliation(s)
- Simone Puppato
- Technology Transfer Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
- University of Molise, Campobasso, Italy
| | - Giulia Fiorenza
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | - Davide Carraretto
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
- University School of Advanced Studies (IUSS), Pavia, Italy
| | | | - Giuliano Gasperi
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
- Institute of Molecular Genetics IGM-CNR, Pavia, Italy
| | - Carlos Caceres
- Insect Pest Control Laboratory, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, Seibersdorf, Austria
| | - Alberto Grassi
- Technology Transfer Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | | | | | - Claudio Ioriatti
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Robin Guilhot
- Institute of Molecular Genetics IGM-CNR, Pavia, Italy
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5
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Feng S, DeGrey SP, Guédot C, Schoville SD, Pool JE. Genomic Diversity Illuminates the Environmental Adaptation of Drosophila suzukii. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.03.547576. [PMID: 37461625 PMCID: PMC10349955 DOI: 10.1101/2023.07.03.547576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Biological invasions carry substantial practical and scientific importance, and represent natural evolutionary experiments on contemporary timescales. Here, we investigated genomic diversity and environmental adaptation of the crop pest Drosophila suzukii using whole-genome sequencing data and environmental metadata for 29 population samples from its native and invasive range. Through a multifaceted analysis of this population genomic data, we increase our understanding of the D. suzukii genome, its diversity and its evolution, and we identify an appropriate genotype-environment association pipeline for our data set. Using this approach, we detect genetic signals of local adaptation associated with nine distinct environmental factors related to altitude, wind speed, precipitation, temperature, and human land use. We uncover unique functional signatures for each environmental variable, such as a prevalence of cuticular genes associated with annual precipitation. We also infer biological commonalities in the adaptation to diverse selective pressures, particularly in terms of the apparent contribution of nervous system evolution to enriched processes (ranging from neuron development to circadian behavior) and to top genes associated with all nine environmental variables. Our findings therefore depict a finer-scale adaptive landscape underlying the rapid invasion success of this agronomically important species.
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Affiliation(s)
- Siyuan Feng
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, WI, USA
| | - Samuel P. DeGrey
- Department of Entomology, University of Wisconsin-Madison, Madison, WI, USA
| | - Christelle Guédot
- Department of Entomology, University of Wisconsin-Madison, Madison, WI, USA
| | - Sean D. Schoville
- Department of Entomology, University of Wisconsin-Madison, Madison, WI, USA
| | - John E. Pool
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, WI, USA
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6
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Wolf S, Collatz J, Enkerli J, Widmer F, Romeis J. Assessing potential hybridization between a hypothetical gene drive-modified Drosophila suzukii and nontarget Drosophila species. RISK ANALYSIS : AN OFFICIAL PUBLICATION OF THE SOCIETY FOR RISK ANALYSIS 2023; 43:1921-1932. [PMID: 36693350 DOI: 10.1111/risa.14096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/30/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
Genetically engineered gene drives (geGD) are potentially powerful tools for suppressing or even eradicating populations of pest insects. Before living geGD insects can be released into the environment, they must pass an environmental risk assessment to ensure that their release will not cause unacceptable harm to non-targeted entities of the environment. A key research question concerns the likelihood that nontarget species will acquire the functional GD elements; such acquisition could lead to reduced abundance or loss of those species and to a disruption of the ecosystem services they provide. The main route for gene flow is through hybridization between the geGD insect strain and closely related species that co-occur in the area of release and its expected dispersal. Using the invasive spotted-wing drosophila, Drosophila suzukii, as a case study, we provide a generally applicable strategy on how a combination of interspecific hybridization experiments, behavioral observations, and molecular genetic analyses can be used to assess the potential for hybridization.
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Affiliation(s)
- Sarah Wolf
- Research Division Agroecology and Environment, Agroscope, Zürich, Switzerland
- Institute for Plant Sciences, University of Bern, Bern, Switzerland
| | - Jana Collatz
- Research Division Agroecology and Environment, Agroscope, Zürich, Switzerland
| | - Jürg Enkerli
- Molecular Ecology, Agroscope, Zürich, Switzerland
| | | | - Jörg Romeis
- Research Division Agroecology and Environment, Agroscope, Zürich, Switzerland
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7
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Earnest R, Hahn AM, Feriancek NM, Brandt M, Filler RB, Zhao Z, Breban MI, Vogels CBF, Chen NFG, Koch RT, Porzucek AJ, Sodeinde A, Garbiel A, Keanna C, Litwak H, Stuber HR, Cantoni JL, Pitzer VE, Olarte Castillo XA, Goodman LB, Wilen CB, Linske MA, Williams SC, Grubaugh ND. Survey of white-footed mice in Connecticut, USA reveals low SARS-CoV-2 seroprevalence and infection with divergent betacoronaviruses. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.22.559030. [PMID: 37808797 PMCID: PMC10557615 DOI: 10.1101/2023.09.22.559030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Diverse mammalian species display susceptibility to and infection with SARS-CoV-2. Potential SARS-CoV-2 spillback into rodents is understudied despite their host role for numerous zoonoses and human proximity. We assessed exposure and infection among white-footed mice (Peromyscus leucopus) in Connecticut, USA. We observed 1% (6/540) wild-type neutralizing antibody seroprevalence among 2020-2022 residential mice with no cross-neutralization of variants. We detected no SARS-CoV-2 infections via RT-qPCR, but identified non-SARS-CoV-2 betacoronavirus infections via pan-coronavirus PCR among 1% (5/468) of residential mice. Sequencing revealed two divergent betacoronaviruses, preliminarily named Peromyscus coronavirus-1 and -2. Both belong to the Betacoronavirus 1 species and are ~90% identical to the closest known relative, Porcine hemagglutinating encephalomyelitis virus. Low SARS-CoV-2 seroprevalence suggests white-footed mice may not be sufficiently susceptible or exposed to SARS-CoV-2 to present a long-term human health risk. However, the discovery of divergent, non-SARS-CoV-2 betacoronaviruses expands the diversity of known rodent coronaviruses and further investigation is required to understand their transmission extent.
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Affiliation(s)
- Rebecca Earnest
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06510, USA
| | - Anne M Hahn
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06510, USA
| | - Nicole M Feriancek
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06510, USA
| | - Matthew Brandt
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06510, USA
| | - Renata B Filler
- Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT 06520, USA
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Zhe Zhao
- Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT 06520, USA
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Mallery I Breban
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06510, USA
| | - Chantal B F Vogels
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06510, USA
| | - Nicholas F G Chen
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06510, USA
| | - Robert T Koch
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06510, USA
| | - Abbey J Porzucek
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06510, USA
| | - Afeez Sodeinde
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06510, USA
| | - Alexa Garbiel
- Department of Environmental Science and Forestry, The Connecticut Agricultural Experiment Station, New Haven, CT 06511, USA
| | - Claire Keanna
- Department of Environmental Science and Forestry, The Connecticut Agricultural Experiment Station, New Haven, CT 06511, USA
| | - Hannah Litwak
- Department of Environmental Science and Forestry, The Connecticut Agricultural Experiment Station, New Haven, CT 06511, USA
| | - Heidi R Stuber
- Department of Entomology, The Connecticut Agricultural Experiment Station, New Haven, CT 06511, USA
| | - Jamie L Cantoni
- Department of Entomology, The Connecticut Agricultural Experiment Station, New Haven, CT 06511, USA
| | - Virginia E Pitzer
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06510, USA
| | - Ximena A Olarte Castillo
- Department of Microbiology and Immunology, Cornell University College of Veterinary Medicine, Ithaca, NY 14853
| | - Laura B Goodman
- Department of Public & Ecosystem Health, Cornell University College of Veterinary Medicine, Ithaca, NY 14853
| | - Craig B Wilen
- Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT 06520, USA
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Megan A Linske
- Department of Entomology, The Connecticut Agricultural Experiment Station, New Haven, CT 06511, USA
| | - Scott C Williams
- Department of Environmental Science and Forestry, The Connecticut Agricultural Experiment Station, New Haven, CT 06511, USA
| | - Nathan D Grubaugh
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06510, USA
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06510, USA
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8
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Lazarević J, Milanović S, Šešlija Jovanović D, Janković-Tomanić M. Temperature- and Diet-Induced Plasticity of Growth and Digestive Enzymes Activity in Spongy Moth Larvae. Biomolecules 2023; 13:biom13050821. [PMID: 37238690 DOI: 10.3390/biom13050821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/04/2023] [Accepted: 05/06/2023] [Indexed: 05/28/2023] Open
Abstract
Temperature and food quality are the most important environmental factors determining the performance of herbivorous insects. The objective of our study was to evaluate the responses of the spongy moth (formerly known as the gypsy moth) [Lymantria dispar L. (Lepidoptera: Erebidae)] to simultaneous variation in these two factors. From hatching to the fourth instar, larvae were exposed to three temperatures (19 °C, 23 °C, and 28 °C) and fed four artificial diets that differed in protein (P) and carbohydrate (C) content. Within each temperature regime, the effects of the nutrient content (P+C) and ratio (P:C) on development duration, larval mass, growth rate, and activities of digestive proteases, carbohydrases, and lipase were examined. It was found that temperature and food quality had a significant effect on the fitness-related traits and digestive physiology of the larvae. The greatest mass and highest growth rate were obtained at 28 °C on a high-protein low-carbohydrate diet. A homeostatic increase in activity was observed for total protease, trypsin, and amylase in response to low substrate levels in the diet. A significant modulation of overall enzyme activities in response to 28 °C was detected only with a low diet quality. A decrease in the nutrient content and P:C ratio only affected the coordination of enzyme activities at 28 °C, as indicated by the significantly altered correlation matrices. Multiple linear regression analysis showed that variation in fitness traits in response to different rearing conditions could be explained by variation in digestion. Our results contribute to the understanding of the role of digestive enzymes in post-ingestive nutrient balancing.
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Affiliation(s)
- Jelica Lazarević
- Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia
| | - Slobodan Milanović
- Faculty of Forestry, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia
- Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemĕdĕlská 3, 613 00 Brno, Czech Republic
| | - Darka Šešlija Jovanović
- Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia
| | - Milena Janković-Tomanić
- Institute for Biological Research "Siniša Stanković"-National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia
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9
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A Versatile Toolset for Genetic Manipulation of the Wine Yeast Hanseniaspora uvarum. Int J Mol Sci 2023; 24:ijms24031859. [PMID: 36768181 PMCID: PMC9915424 DOI: 10.3390/ijms24031859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/15/2023] [Accepted: 01/16/2023] [Indexed: 01/19/2023] Open
Abstract
Hanseniaspora uvarum is an ascomycetous yeast that frequently dominates the population in the first two days of wine fermentations. It contributes to the production of many beneficial as well as detrimental aroma compounds. While the genome sequence of the diploid type strain DSM 2768 has been largely elucidated, transformation by electroporation was only recently achieved. We here provide an elaborate toolset for the genetic manipulation of this yeast. A chromosomal replication origin was isolated and used for the construction of episomal, self-replicating cloning vectors. Moreover, homozygous auxotrophic deletion markers (Huura3, Huhis3, Huleu2, Huade2) have been obtained in the diploid genome as future recipients and a proof of principle for the application of PCR-based one-step gene deletion strategies. Besides a hygromycin resistance cassette, a kanamycin resistance gene was established as a dominant marker for selection on G418. Recyclable deletion cassettes flanked by loxP-sites and the corresponding Cre-recombinase expression vectors were tailored. Moreover, we report on a chemical transformation procedure with the use of freeze-competent cells. Together, these techniques and constructs pave the way for efficient and targeted manipulations of H. uvarum.
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10
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Elsensohn JE, Burrack HJ. Plasticity in oviposition and foraging behavior in the invasive pest Drosophila suzukii across natural and agricultural landscapes. Ecol Evol 2023; 13:e9713. [PMID: 36620402 PMCID: PMC9817201 DOI: 10.1002/ece3.9713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 01/09/2023] Open
Abstract
The effects and extent of the impacts of agricultural insect pests in and around cropping systems is a rich field of study. However, little research exists on the presence and consequence of pest insects in undisturbed landscapes distant from crop hosts. Research in such areas may yield novel or key insights on pest behavior or ecology that is not evident from agroecosystem-based studies. Using the invasive fruit pest Drosophila suzukii (Matsumura) as a case study, we investigated the presence and resource use patterns of this agricultural pest in wild blackberries growing within the southern Appalachian Mountain range of North Carolina over 2 years. We found D. suzukii throughout the sampled range with higher levels of infestation (D. suzukii eggs/g fruit) in all ripeness stages in natural areas when compared with cultivated blackberry samples, but especially in under-ripe fruit. We also explored a direct comparison of oviposition preference between wild and cultivated fruit and found higher oviposition in wild berries when equal weights of fruit were offered, but oviposition was higher in cultivated berries when fruit number was equal. Forest populations laid more eggs in unripe wild-grown blackberries throughout the year than populations infesting cultivated berries. This suggests D. suzukii may change its oviposition and foraging behavior in relation to fruit type. Additionally, as D. suzukii exploits a common forest fruit prior to ripeness, further research is needed to explore how this affects wild food web dynamics and spillover to regional agroecosystems.
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Affiliation(s)
- Johanna E. Elsensohn
- Department of Entomology and Plant PathologyNorth Carolina State UniversityRaleighNorth CarolinaUSA,USDA‐ARS Appalachian Fruit Research StationKearneysvilleWest VirginiaUSA
| | - Hannah J. Burrack
- Department of Entomology and Plant PathologyNorth Carolina State UniversityRaleighNorth CarolinaUSA,Department of EntomologyMichigan State UniversityEast LansingMichiganUSA
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11
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Plasticity in Chemical Host Plant Recognition in Herbivorous Insects and Its Implication for Pest Control. BIOLOGY 2022; 11:biology11121842. [PMID: 36552352 PMCID: PMC9775997 DOI: 10.3390/biology11121842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022]
Abstract
Chemical communication is very important in herbivorous insects, with many species being important agricultural pests. They often use olfactory cues to find their host plants at a distance and evaluate their suitability upon contact with non-volatile cues. Responses to such cues are modulated through interactions between various stimuli of biotic and abiotic origin. In addition, the response to the same stimulus can vary as a function of, for example, previous experience, age, mating state, sex, and morph. Here we summarize recent advances in the understanding of plant localization and recognition in herbivorous insects with a focus on the interplay between long- and short-range signals in a complex environment. We then describe recent findings illustrating different types of plasticity in insect plant choice behavior and the underlying neuronal mechanisms at different levels of the chemosensory pathway. In the context of strong efforts to replace synthetic insecticides with alternative pest control methods, understanding combined effects between long- and close-range chemical cues in herbivore-plant interactions and their complex environment in host choice are crucial to develop effective plant protection methods. Furthermore, plasticity of behavioral and neuronal responses to chemical cues needs to be taken into account to develop effective sustainable pest insect control through behavioral manipulation.
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12
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Olazcuaga L, Foucaud J, Deschamps C, Loiseau A, Claret J, Vedovato R, Guilhot R, Sévely C, Gautier M, Hufbauer RA, Rode NO, Estoup A. Rapid and transient evolution of local adaptation to seasonal host fruits in an invasive pest fly. Evol Lett 2022; 6:490-505. [PMID: 36579160 PMCID: PMC9783429 DOI: 10.1002/evl3.304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 07/12/2022] [Accepted: 10/27/2022] [Indexed: 12/30/2022] Open
Abstract
Both local adaptation and adaptive phenotypic plasticity can influence the match between phenotypic traits and local environmental conditions. Theory predicts that environments stable for multiple generations promote local adaptation, whereas highly heterogeneous environments favor adaptive phenotypic plasticity. However, when environments have periods of stability mixed with heterogeneity, the relative importance of local adaptation and adaptive phenotypic plasticity is unclear. Here, we used Drosophila suzukii as a model system to evaluate the relative influence of genetic and plastic effects on the match of populations to environments with periods of stability from three to four generations. This invasive pest insect can develop within different fruits, and persists throughout the year in a given location on a succession of distinct host fruits, each one being available for only a few generations. Using reciprocal common environment experiments of natural D. suzukii populations collected from cherry, strawberry, and blackberry, we found that both oviposition preference and offspring performance were higher on medium made with the fruit from which the population originated than on media made with alternative fruits. This pattern, which remained after two generations in the laboratory, was analyzed using a statistical method we developed to quantify the contributions of local adaptation and adaptive plasticity in determining fitness. Altogether, we found that genetic effects (local adaptation) dominate over plastic effects (adaptive phenotypic plasticity). Our study demonstrates that spatially and temporally variable selection does not prevent the rapid evolution of local adaptation in natural populations. The speed and strength of adaptation may be facilitated by several mechanisms including a large effective population size and strong selective pressures imposed by host plants.
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Affiliation(s)
- Laure Olazcuaga
- CBGP, INRAE, CIRAD, IRD, Institut Agro, Univ MontpellierMontpellier34988France,Department of Agricultural BiologyColorado State UniversityFort CollinsColorado80523USA
| | - Julien Foucaud
- CBGP, INRAE, CIRAD, IRD, Institut Agro, Univ MontpellierMontpellier34988France
| | - Candice Deschamps
- CBGP, INRAE, CIRAD, IRD, Institut Agro, Univ MontpellierMontpellier34988France
| | - Anne Loiseau
- CBGP, INRAE, CIRAD, IRD, Institut Agro, Univ MontpellierMontpellier34988France
| | - Jean‐Loup Claret
- CBGP, INRAE, CIRAD, IRD, Institut Agro, Univ MontpellierMontpellier34988France
| | - Romain Vedovato
- CBGP, INRAE, CIRAD, IRD, Institut Agro, Univ MontpellierMontpellier34988France
| | - Robin Guilhot
- CBGP, INRAE, CIRAD, IRD, Institut Agro, Univ MontpellierMontpellier34988France
| | - Cyril Sévely
- Chambre d'agriculture de l'HéraultLattes34875France
| | - Mathieu Gautier
- CBGP, INRAE, CIRAD, IRD, Institut Agro, Univ MontpellierMontpellier34988France
| | - Ruth A. Hufbauer
- Department of Agricultural BiologyColorado State UniversityFort CollinsColorado80523USA,Graduate Degree Program in EcologyColorado State UniversityFort CollinsColorado80523USA
| | - Nicolas O. Rode
- CBGP, INRAE, CIRAD, IRD, Institut Agro, Univ MontpellierMontpellier34988France
| | - Arnaud Estoup
- CBGP, INRAE, CIRAD, IRD, Institut Agro, Univ MontpellierMontpellier34988France
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13
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Bühlmann I, Gossner MM. Invasive Drosophila suzukii outnumbers native controphics and causes substantial damage to fruits of forest plants. NEOBIOTA 2022. [DOI: 10.3897/neobiota.77.87319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
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 of fruits, which negatively affects fruit and wine production. However, little is known about the ecological impact of this fly species on more natural ecosystems it has invaded, such as forests. In this study, we investigated the use of potential host plants by D. suzukii at 64 sites in different forest communities in Switzerland from mid-June to mid-October 2020. We examined more than 12,000 fruits for egg deposits of D. suzukii to assess its direct impact on the plants. We recorded symptoms of fruit decay after egg deposition to determine if D. suzukii attacks trigger fruit decay. In addition, we monitored the drosophilid fauna with cup traps baited with apple cider vinegar, as we expected that D. suzukii would outnumber and potentially outcompete native controphics, especially other drosophilids. Egg deposits of D. suzukii were found on the fruits of 31 of the 39 potential host plant species studied, with 18 species showing an attack rate > 50%. Overall, fruits of Cotoneaster divaricatus (96%), Atropa bella-donna (91%), Rubus fruticosus corylifolius aggr. (91%), Frangula alnus (85%) and Sambucus nigra (83%) were attacked particularly frequently, resulting also in high predicted attack probabilities that varied among forest communities. Later and longer fruiting, black fruit colour, larger fruit size and higher pulp pH all positively affected attack rates. More than 50% of the plant species showed severe symptoms of decay after egg deposition, with higher pulp sugar content leading to more severe symptoms. The high fruit attack rate observed was reflected in a high abundance and dominance of D. suzukii in trap catches, independent of forest community and elevation. Drosophila suzukii was by far the most abundant species, accounting for 86% (81,395 individuals) of all drosophilids. The abundance of D. suzukii was negatively associated with the abundance of the native drosophilids. Our results indicate that the invasive D. suzukii competes strongly with other frugivorous species and that its presence might have far-reaching ecosystem-level consequences. The rapid decay of fruits attacked by D. suzukii leads to a loss of resources and may disrupt seed-dispersal mutualisms through the reduced consumption of fruits by dispersers such as birds.
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14
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Drosophila suzukii preferentially lays eggs on spherical surfaces with a smaller radius. Sci Rep 2022; 12:15792. [PMID: 36138089 PMCID: PMC9500074 DOI: 10.1038/s41598-022-20022-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 09/07/2022] [Indexed: 11/10/2022] Open
Abstract
Drosophila suzukii is an agricultural pest that predominantly harms small fruits, having a serrated ovipositor that is able to pierce the skin of ripening fruits. Its oviposition preference has been studied from various aspects including chemical and physical properties of oviposition substrates. However, its preference for certain shapes or sizes of substrates has not been explored. In this study, we tested the oviposition preference of D. suzukii for artificial oviposition substrates with different surface curvatures using 27 strains recently established from wild populations collected in Japan. We found that D. suzukii laid more eggs on a surface with smaller radii (4.8 and 5.7 mm) compared with larger radii (7.7 and 9.6 mm). We also found that the most preferred radius differed among strains. Notably, the preference was independent of the volume of substrates, suggesting that D. suzukii uses the surface curvature as a cue for its oviposition site selection. These results provide an additional explanation for why D. suzukii preferentially uses small fruits as its oviposition sites.
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15
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Essential Oils as a Source of Ecofriendly Insecticides for Drosophila suzukii (Diptera: Drosophilidae) and Their Potential Non-Target Effects. Molecules 2022; 27:molecules27196215. [PMID: 36234751 PMCID: PMC9571007 DOI: 10.3390/molecules27196215] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/12/2022] [Accepted: 09/15/2022] [Indexed: 11/30/2022] Open
Abstract
The spotted wing drosophila (Drosophila suzukii) is one of the main invasive pests of small fruits in the world. Thus, 19 essential oils (EOs) were selected to analyze the effects through toxicity and repellency on oviposition and D. suzukii adults. In addition, their lethal and sublethal effects on the pupal endoparasitoid Trichopria anastrephae were evaluated. The EOs of C. flexuosus and Mentha spp. had the highest toxicity observed in the topical application bioassay for D. suzukii. In contrast, the EOs of C. verum, C. citratus QT citratus, and C. winterianus showed the highest toxicity in the ingestion bioassay for D. suzukii. The dry residues of C. verum and C. citratus QT citratus reduced the oviposition of D. suzukii. In the repellency bioassays, the 19 EOs analyzed repelled ≅ 90% of the D. suzukii females. All EOs evaluated using the LC90 values of the products provided mortality of less than 20% of T. anastrephae adults and did not cause a reduction in the parasitism of surviving T. anastrephae females. We conclude that the EOs evaluated have the potential to be used in the management of D. suzukii. They can also serve as selective active ingredients for the formulation and synthesis of new biopesticides.
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16
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Babu A, Rodriguez-Saona C, Sial AA. Factors Influencing the Efficacy of Novel Attract-and-Kill (ACTTRA SWD) Formulations Against Drosophila suzukii. JOURNAL OF ECONOMIC ENTOMOLOGY 2022; 115:981-989. [PMID: 35078242 DOI: 10.1093/jee/toab273] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Indexed: 06/14/2023]
Abstract
In the continental United States, the invasive spotted-wing drosophila (SWD), Drosophila suzukii Matsumura, has become a primary pest of multiple stone and soft-skinned fruits. A new innovative adjuvant formulation, ACTTRA SWD, mixed with a suitable insecticide, constitutes a novel attract-and-kill tactic to manage D. suzukii in fruit crops. We hypothesized that background odors present in crop fields, particularly odors from host fruits, negatively affect the effectiveness of this attract-and-kill formulation, as odors from these sources can compete for insect attraction. Additionally, we evaluated the influence of adult D. suzukii sex and physiological status (age and mating status), and fruit ripeness on its response to the ACTTRA SWD formulation. For this, we used two-choice bioassays to test the response of adult D. suzukii to three ACTTRA SWD formulations (named OR1, TD, and HOOK SWD) in the presence and absence of host fruits (blueberries, raspberries, blackberries, and strawberries). Odors from raspberries were significantly more attractive than those from the TD formulation mixed with spinosad (Entrust). For the HOOK SWD formulation and OR1+Entrust formulation, odors from all the fruit types tested were significantly more attractive than the adjuvants. Compared with females, male D. suzukii were more attracted to the TD formulation over the blueberry fruits. Additionally, age and female mating status but not fruit ripeness influenced D. suzukii attraction to both OR1 and TD formulations. The results from this study indicate that D. suzukii physiological status and host fruit availability impact the efficacy of new attract-and-kill adjuvants such as ACTTRA SWD.
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Affiliation(s)
- Arun Babu
- Department of Entomology, University of Georgia, Athens, GA, USA
| | | | - Ashfaq A Sial
- Department of Entomology, University of Georgia, Athens, GA, USA
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17
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Whitener AB, Smytheman P, Beers EH. Efficacy and Species Specificity of Baits and Lures for Spotted-Wing Drosophila, Drosophila suzukii (Diptera: Drosophilidae). JOURNAL OF ECONOMIC ENTOMOLOGY 2022; 115:1036-1045. [PMID: 35468195 DOI: 10.1093/jee/toac020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Indexed: 06/14/2023]
Abstract
Monitoring is an important element in management programs for Drosophila suzukii (Matsumura), helping users to avoid prophylactic treatments. Factors such as attractiveness, sensitivity, selectivity, longevity, and ease of use must be considered when developing a trap and lure system for monitoring and thresholds. We examined various baits and lures over a 5-yr period in sweet cherry orchards in the semiarid climate of eastern Washington. Using a jar trap, the attractants were evaluated for attractiveness (maximum capture), selectivity for D. suzukii (vs. other Drosophila species), and sex ratio of captured D. suzukii. We examined the relative performance of the attractants during periods of low (≈1 D. suzukii per trap per week) and high (232 D. suzukii per trap per week) density over the course of the growing season, which usually corresponded to mid-summer and autumn temperatures, respectively. The Scentry lure was consistently the most attractive lure, capturing the highest numbers of adult D. suzukii over the series of tests, but also had the highest levels of by-catch. Recipe-based baits (yeast, wine-vinegar, and apple cider vinegar) captured fewer D. suzukii overall, although the commercial baits Dros'Attract and Suzukii Trap were comparable to the Scentry lure in late season tests. The Trécé lures were consistently the most selective of the attractants, but had generally lower D. suzukii captures. Sex ratio varied widely among and within the tests, but with no consistent pattern among the various attractants. All attractants were successful in capturing flies, and the choice of attractant depends on the constraints and goals of the user.
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Affiliation(s)
| | - Peter Smytheman
- Washington State University Tree Fruit Research & Extension Center, 1100 N. Western Avenue, Wenatchee, WA 98801, USA
| | - Elizabeth H Beers
- Washington State University Tree Fruit Research & Extension Center, 1100 N. Western Avenue, Wenatchee, WA 98801, USA
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18
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Wilson JK, Gut LJ, Powers K, Huang J, Rothwell N. Predicting the Risk of Tart Cherry (Prunus cerasus) Infestation by Drosophila suzukii (Diptera: Drosophilidae). JOURNAL OF ECONOMIC ENTOMOLOGY 2022; 115:1024-1028. [PMID: 35217870 DOI: 10.1093/jee/toac024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Indexed: 06/14/2023]
Abstract
Drosophila suzukii (Matsumura, 1931) (Diptera: Drosophilidae) is a vinegar fly native to East Asia that has rapidly expanded its range to become a pest of sweet cherry (Prunus avium, L. 1753 [Rosales: Rosaceae]) and tart cherry (P. cerasus, L. 1753) in North America and Europe. The goal of the research presented herein was to improve the decision-making process for managing D. suzukii in tart cherry. Knowing that D. suzukii females are attracted to ripening fruit, we measured fruit infestation by D. suzukii as it relates to an existing fruit development model that uses full bloom as a biofix, calculating accumulated growing degree days (GDD) with a lower threshold of 4°C. Increasing larval infestation was highly correlated with fruit development expressed as GDD post-bloom with very few larvae developing in fruit subjected to no-choice assays prior to 530 GDD (base 4°C) and no larvae detected in naturally infested fruit prior to 800 GDD. Our findings provide the first quantification of the relationship between fruit development and D. suzukii infestation that allows for pinpointing the timing of fruit susceptibility and that could be used as the basis for a more sustainable management program for this pest in tart cherry orchards.
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Affiliation(s)
- Julianna K Wilson
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - Larry J Gut
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - Karen Powers
- Northwest Michigan Horticultural Research Center, Traverse City, MI, USA
| | - Juan Huang
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - Nikki Rothwell
- Northwest Michigan Horticultural Research Center, Traverse City, MI, USA
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19
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Trombin de Souza M, Trombin de Souza M, Bernardi D, Oliveira DDC, Morais MC, de Melo DJ, Richardi VS, Zarbin PHG, Zawadneak MAC. Essential Oil of Rosmarinus officinalis Ecotypes and Their Major Compounds: Insecticidal and Histological Assessment Against Drosophila suzukii and Their Impact on a Nontarget Parasitoid. JOURNAL OF ECONOMIC ENTOMOLOGY 2022; 115:955-966. [PMID: 34865075 DOI: 10.1093/jee/toab230] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Indexed: 06/13/2023]
Abstract
Essential oils (EOs) produced by plants in the Lamiaceae family may provide new insecticidal molecules. Novel control compounds are needed to control Drosophila suzukii (Matsumura), a severe economic invasive pest of thin-skinned fruit crops. Thus, we characterized the main compounds of EOs from three rosemary Rosmarinus officinalis ecotypes (ECOs) and evaluated their toxicity to D. suzukii adults, deterrence of oviposition behavior, and histological alterations in larvae. Additionally, we analyzed the lethal and sublethal effect on the pupal parasitoid Trichopria anastrephae. The main compounds identified in the R. officinalis ECOs were α-pinene, camphor and 1,8-cineole. In bioassays via topical application or ingestion, ECOs and their major compounds showed high toxicity on D. suzukii adults and a lower concentration could kill 50% and 90% of flies compared to spinetoram. The dry residues of a-pinene, 1,8-cineole, and camphor provided a repellent effect by reducing D. suzukii oviposition by ~47% compared to untreated fruit. Histological sections of 3rd instar larval D. suzukii posttreatment revealed damage to the fat body, Malpighian tubules, brain, salivary gland, and midgut, which contributed to high larval and pupal mortality. Survival and parasitism by adult T. anastrephae were not affected. Thus, R. officinalis EO and their compounds have potential for developing novel insecticides to manage D. suzukii.
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Affiliation(s)
| | | | - Daniel Bernardi
- Department of Plant Protection, Federal University of Pelotas, Faculty of Agronomy, Pelotas, Rio Grande do Sul, Brazil
| | - Daiana da Costa Oliveira
- Department of Plant Protection, Federal University of Pelotas, Faculty of Agronomy, Pelotas, Rio Grande do Sul, Brazil
| | - Maíra Chagas Morais
- Department of Plant Protection, Federal University of Pelotas, Faculty of Agronomy, Pelotas, Rio Grande do Sul, Brazil
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20
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Tungadi TD, Shaw B, Powell G, Hall DR, Bray DP, Harte SJ, Farman DI, Wijnen H, Fountain MT. Live Drosophila Melanogaster Larvae Deter Oviposition by Drosophila suzukii. INSECTS 2022; 13:insects13080688. [PMID: 36005313 PMCID: PMC9408982 DOI: 10.3390/insects13080688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 01/25/2023]
Abstract
Simple Summary The invasive insect pest, Drosophila suzukii Matsumura or spotted-wing drosophila (SWD) lays its eggs in soft and stone fruit. Eggs hatch into larvae, which feed on fruit, causing fruit collapse and significant economic losses worldwide. Current control methods rely primarily on foliar insecticide applications, which are not sustainable long-term solutions. In nature, D. suzukii interacts with and encounters other Drosophila species, especially towards the end of the growing season when ripening fruits are scarce. We showed previously that D. suzukii were deterred from laying eggs on artificial media exposed to egg laying Drosophila melanogaster, its sister species. It was hypothesized that a signal was left by D. melanogaster which deterred D. suzukii from laying eggs. This study aimed to identify from which D. melanogaster life stage the egg laying deterrent signal originated and we showed that the presence of live D. melanogaster larvae on the egg laying media deter D. suzukii from laying eggs. Drosophila melanogaster cuticular hydrocarbons were examined as the signal source, but no evidence was found for their involvement. These results have improved our understanding of the interspecific interactions between D. suzukii and other Drosophila species and could provide new innovative approaches to D. suzukii management strategies. Abstract The worldwide invasive insect pest, Drosophila suzukii Matsumura (spotted-wing Drosophila), lays eggs in soft and stone fruit before harvest. Hatched larvae cause fruit collapse and significant economic losses. Current control methods rely primarily on foliar insecticide applications, which are not sustainable long-term solutions due to regulatory restrictions and the risk of insecticide resistance developing. We showed before that D. suzukii were deterred from laying eggs on artificial media previously visited by its sister species—Drosophila melanogaster. In the current study, laboratory choice test experiments were conducted to identify which D. melanogaster life stage (eggs, larvae, or adult) deterred D. suzukii oviposition. We demonstrated that the presence of live D. melanogaster larvae on the egg-laying media consistently deterred D. suzukii oviposition. Drosophila melanogaster cuticular hydrocarbons (CHCs) were examined as candidate for the oviposition deterrent. CHCs of larval and adult D. melanogaster and D. suzukii were analyzed. In both species, the composition of the CHCs of larvae was similar to that of adults, although quantities present were much lower. Furthermore, the CHC profiles of the two species were markedly different. However, when assayed as deterrents in the laboratory choice test experiment, CHC extracts from D. melanogaster did not deter oviposition by D. suzukii.
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Affiliation(s)
| | - Bethan Shaw
- NIAB, East Malling, West Malling ME19 6BJ, UK; (T.D.T.); (B.S.)
| | | | - David R. Hall
- Natural Resources Institute, University of Greenwich, Southampton ME4 4TB, UK; (D.R.H.); (D.P.B.); (S.J.H.); (D.I.F.)
| | - Daniel P. Bray
- Natural Resources Institute, University of Greenwich, Southampton ME4 4TB, UK; (D.R.H.); (D.P.B.); (S.J.H.); (D.I.F.)
| | - Steven J. Harte
- Natural Resources Institute, University of Greenwich, Southampton ME4 4TB, UK; (D.R.H.); (D.P.B.); (S.J.H.); (D.I.F.)
| | - Dudley I. Farman
- Natural Resources Institute, University of Greenwich, Southampton ME4 4TB, UK; (D.R.H.); (D.P.B.); (S.J.H.); (D.I.F.)
| | - Herman Wijnen
- School of Biological Sciences and Institute for Life Sciences, University of Southampton, Southampton SO17 1BJ, UK;
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21
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Surveys of Drosophila suzukii (Diptera: Drosophilidae) and Its Host Fruits and Associated Parasitoids in Northeastern China. INSECTS 2022; 13:insects13040390. [PMID: 35447832 PMCID: PMC9024812 DOI: 10.3390/insects13040390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/11/2022] [Accepted: 04/12/2022] [Indexed: 02/05/2023]
Abstract
Spotted-wing drosophila, Drosophila suzukii (Matsumura), is a worldwide quarantine pest that is currently undergoing a rapid range expansion in the Americas, Europe, and parts of Africa. It feeds and breeds on soft-skinned fruits such as raspberries, blueberries, and cherries, and can cause significant economic losses to fruit production. This study investigated the occurrence of D. suzukii and its wild host fruits and parasitoids in Liaoning, Northeast China for the first time. Sentinel traps were used to monitor D. suzukii adults, and suspected fruits were collected weekly in four different locations (Wafangdian, Faku, Fengcheng, and Shenyang). The results showed that D. suzukii were distributed in the sweet soft-skinned fruit-production areas of Liaoning, and raspberry was the most infested fruit. During the field survey, four species of wild berries from non-crop habitats were found infested by D. suzukii, and two species of parasitoids (Leptopilina japonica and Asobara japonica) were collected. D. suzukii adult-population dynamics throughout the survey period (June to October) were similar in different survey locations; adult fly populations increased and peaked in August, and then declined until the fly was no longer detectable in October.
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22
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Chakraborty A, Mori B, Rehermann G, Garcia AH, Lemmen‐Lechelt J, Hagman A, Khalil S, Håkansson S, Witzgall P, Becher PG. Yeast and fruit fly mutual niche construction and antagonism against mould. Funct Ecol 2022. [DOI: 10.1111/1365-2435.14054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amrita Chakraborty
- Department of Plant Protection Biology Swedish University of Agricultural Sciences Box 102 23053 Alnarp Sweden
- EVA 4.0 Unit, Faculty of Forestry and Wood Sciences Czech University of Life Sciences Kamýcka 129 16500 Prague Czech Republic
| | - Boyd Mori
- Department of Plant Protection Biology Swedish University of Agricultural Sciences Box 102 23053 Alnarp Sweden
- Department of Agricultural, Food and Nutritional Science University of Alberta Agriculture/Forestry Centre 4‐10 Edmonton Alberta Canada T6G 2P5
| | - Guillermo Rehermann
- Department of Plant Protection Biology Swedish University of Agricultural Sciences Box 102 23053 Alnarp Sweden
| | - Armando Hernández Garcia
- Department of Molecular Sciences Swedish University of Agricultural Sciences Box 7015 75007 Uppsala Sweden
- Division of Biotechnology Department of Chemistry Faculty of Engineering Lund University Box 124 221 00 Lund Sweden
| | - Joelle Lemmen‐Lechelt
- Department of Plant Protection Biology Swedish University of Agricultural Sciences Box 102 23053 Alnarp Sweden
| | - Arne Hagman
- Division of Biotechnology Department of Chemistry Faculty of Engineering Lund University Box 124 221 00 Lund Sweden
| | - Sammar Khalil
- Department of Biosystems and Technology Swedish University of Agricultural Sciences Box 102 23053 Alnarp Sweden
| | - Sebastian Håkansson
- Department of Molecular Sciences Swedish University of Agricultural Sciences Box 7015 75007 Uppsala Sweden
- Division of Applied Microbiology Department of Chemistry Faculty of Engineering Lund University Lund Sweden
| | - Peter Witzgall
- Department of Plant Protection Biology Swedish University of Agricultural Sciences Box 102 23053 Alnarp Sweden
| | - Paul G Becher
- Department of Plant Protection Biology Swedish University of Agricultural Sciences Box 102 23053 Alnarp Sweden
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Nyamukondiwa C, Machekano H, Chidawanyika F, Mutamiswa R, Ma G, Ma CS. Geographic dispersion of invasive crop pests: the role of basal, plastic climate stress tolerance and other complementary traits in the tropics. CURRENT OPINION IN INSECT SCIENCE 2022; 50:100878. [PMID: 35093582 DOI: 10.1016/j.cois.2022.100878] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 01/11/2022] [Accepted: 01/21/2022] [Indexed: 06/14/2023]
Abstract
Global pest invasions have significantly increased in recent years. These invasions together with climate warming directly impact agriculture. Tropical climates feature extreme weather events, including high temperatures and seasonal droughts. Thus, successful invasive pests in tropics have to adapt to these extreme climate features. The intrinsic factors relevant to tropical invasion of insects have been explored in many studies, but the knowledge is rather dispersed in contemporary literature. Here, we reviewed the potential biophysical characters of successful invasive pests' adaption to tropical environments including [1] inherent high basal stress tolerance and advanced life-history performances [2], phenotypic plasticity [3], rapid evolution to environmental stress, polyphagy, diverse reproductive strategies and high fecundity. We summarised how these traits and their interactive effects enhance pest invasions in the tropics. Comprehensive understanding of how these characters facilitate invasion improves models for predicting ecological consequences of climate change on invasive pest species for improved pest management.
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Affiliation(s)
- Casper Nyamukondiwa
- Botswana International University of Science and Technology, Palapye, Botswana; Department of Zoology and Entomology, Rhodes University, Makhanda 6140, South Africa.
| | - Honest Machekano
- Botswana International University of Science and Technology, Palapye, Botswana; Department of Zoology and Entomology, University of Pretoria, Private Bag X20, Hatfield, Pretoria 0028, South Africa
| | - Frank Chidawanyika
- International Centre of Insect Physiology and Ecology (ICIPE), P.O Box 30772-0 010 0, Nairobi, Kenya; Department of Zoology and Entomology, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
| | - Reyard Mutamiswa
- Department of Zoology and Entomology, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa; Tugwi-Mukosi Multidisciplinary Research Institute, Midlands State University, P. Bag 9055, Gweru, Zimbabwe
| | - Gang Ma
- Climate Change Biology Research Group, State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, China
| | - Chu-Sen Ma
- Climate Change Biology Research Group, State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, China.
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Stockton DG, Loeb GM. Diet Hierarchies Guide Temporal-Spatial Variation in Drosophila suzukii Resource Use. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2021.816557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Among insects, female oviposition preferences are critical to understanding the evolutionary dynamics between herbivores and hosts. Previous studies have shown Drosophila resource use has a strong genetic basis, although there is evidence that preferences are adaptable given isolation from ancestral hosts. Given the high degree of adaptability and behavioral plasticity of invasive species, we were interested in the mechanisms affecting host preferences of the invasive fruit fly, Drosophila suzukii, which in recent years has developed a nearly global range infesting small fruit crops. We studied the diet hierarchies of D. suzukii using a combination of laboratory and field assays designed to assess how female oviposition host choice differs given the availability of, and experience with, different fruit and non-fruit hosts. We found that host preferences did not shift over time and flies reared on two differential isolated diets up to F5 behaved and performed similarly regardless of diet lineage. Rather, female host choice appeared guided by a fixed hierarchical system of host preferences. Raspberry was more preferred to mushroom, which was more preferred to goose manure. However, if preferred resources were absent, the use of less-preferred resources was compensatory. We suggest that among niche specialists, such as D. suzukii, these hierarchies may support a bet-hedging strategy, rather than multiple-niche polymorphism, allowing for niche separation during periods of increased competition, while maintaining more diverse, ancestral feeding behaviors when preferred resources are scarce.
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Shu R, Uy L, Wong ACN. Nutritional phenotype underlines the performance trade-offs of Drosophila suzukii on different fruit diets. CURRENT RESEARCH IN INSECT SCIENCE 2022; 2:100026. [PMID: 36003272 PMCID: PMC9387456 DOI: 10.1016/j.cris.2021.100026] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 12/08/2021] [Accepted: 12/10/2021] [Indexed: 11/20/2022]
Abstract
Drosophila suzukii exhibits contrasting performance trade-offs when confined to fruit diets of different protein-to-sugar ratios. These trade-offs can only be established when we examined performance parameters in both larvae and adults. The diet-specific nutritional phenotype readily explains the performance trade-offs.
Animals confined to different dietary conditions often exhibit distinct, sometimes contrasting, nutritional phenotypes and performance outcomes. This is especially true for many oviparous insects whose developmental diets can vary depending on the mother's egg-laying site selection. Much research on the relationship between preference and performance in insects has focused on larval success, which overlooks the complexities of dietary effects on diverse performance parameters across life stages and potential trade-offs between those parameters. Furthermore, the connection between diet-induced nutritional phenotype and performance trade-offs is not well understood. Here, using Drosophila suzukii, we quantify multiple performance indices of larvae and adults reared on five host fruits of different protein-to-sugar ratios (P:S) which have previously been shown to differ in attractiveness to fly foraging and oviposition. Our results demonstrate robust diet-specific performance trade-offs, with fly fecundity, larval development time, pupal size, and adult weight superior in flies reared on the high P:S raspberry diet, in contrast to the low P:S grape diet; but the reverse was found in terms of adult starvation resistance. Notably, the contrasting performance trade-offs are readily explained by the fly nutritional phenotype, reflected in the protein and energy (glucose and lipid) contents of flies reared on the two fruits. Together, our results provide experimental evidence for metabolic plasticity of D. suzukii reared on different fruits and the possibility of using adult nutritional phenotype as a marker for diet and performance outcomes.
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Affiliation(s)
- Runhang Shu
- Entomology and Nematology Department, University of Florida, Gainesville, FL, USA
| | - Laurice Uy
- Entomology and Nematology Department, University of Florida, Gainesville, FL, USA
| | - Adam Chun-Nin Wong
- Entomology and Nematology Department, University of Florida, Gainesville, FL, USA
- Genetics Institute, University of Florida, Gainesville, FL, USA
- Corresponding author, Adam C.N. Wong, 1881 Natural Area Drive, Steinmetz Hall, Gainesville, Fl 32611-0620, Phone: 352-273-3977
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26
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Stockton DG, Cha DH, Loeb GM. Does Habituation Affect the Efficacy of Semiochemical Oviposition Repellents Developed Against Drosophila suzukii? ENVIRONMENTAL ENTOMOLOGY 2021; 50:1322-1331. [PMID: 34532743 DOI: 10.1093/ee/nvab099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Indexed: 06/13/2023]
Abstract
The application of feeding and oviposition repellents is limited to arthropod systems in which habituation does not occur. Although several compounds appear to reduce Drosophila suzukii Matsumura (Dipetra: Drosophilidae) oviposition in berries, previous studies have yet to address whether habituation is a significant risk following preexposure. We tested the response of adult female D. suzukii to three previously identified semiochemical oviposition repellents, 1-octen-3-ol (octenol), ±-geosmin, and 2-n-pentylfuran, following adult and larval preexposure. Using a two-choice gated trap capture assay, we assessed captures in repellent-treated versus blank traps, female survival, and oviposition frequency in the selected trap. We did not find evidence of habituation to octenol or 2-pentylfuran in adult flies preexposed for 24, 48, or 72 hr. When exposed to each of the repellents as larvae, D. suzukii showed similar deterrence as those exposed as adults alone. However, mortality did decrease in F1 octenol treated flies. In contrast with previous investigations we did not observe repellent effects in response to geosmin. Our results suggest that neither exposure during the adult life stage nor during larval development inhibited the effectiveness of octenol and 2-pentylfuran. However, greater survivorship on octenol treated baits in F1 flies, combined with apparent neurotoxic effects of this compound, indicate that octenol may be less suited for field applications. For this reason, 2-pentylfuran appears to be a better candidate for ongoing research aimed at developing an effective push-pull system of behavioral management.
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Affiliation(s)
- Dara G Stockton
- Department of Entomology, Cornell AgriTech, Cornell University, 630 W North Street, Geneva, NY 14456, USA
- USDA-ARS, Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI 96720, USA
| | - Dong H Cha
- USDA-ARS, Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI 96720, USA
| | - Greg M Loeb
- Department of Entomology, Cornell AgriTech, Cornell University, 630 W North Street, Geneva, NY 14456, USA
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Oberhofer G, Ivy T, Hay BA. Gene drive that results in addiction to a temperature-sensitive version of an essential gene triggers population collapse in Drosophila. Proc Natl Acad Sci U S A 2021; 118:e2107413118. [PMID: 34845012 PMCID: PMC8670509 DOI: 10.1073/pnas.2107413118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2021] [Indexed: 12/15/2022] Open
Abstract
One strategy for population suppression seeks to use gene drive to spread genes that confer conditional lethality or sterility, providing a way of combining population modification with suppression. Stimuli of potential interest could be introduced by humans, such as an otherwise benign virus or chemical, or occur naturally on a seasonal basis, such as a change in temperature. Cleave and Rescue (ClvR) selfish genetic elements use Cas9 and guide RNAs (gRNAs) to disrupt endogenous versions of an essential gene while also including a Rescue version of the essential gene resistant to disruption. ClvR spreads by creating loss-of-function alleles of the essential gene that select against those lacking it, resulting in populations in which the Rescue provides the only source of essential gene function. As a consequence, if function of the Rescue, a kind of Trojan horse now omnipresent in a population, is condition dependent, so too will be the survival of that population. To test this idea, we created a ClvR in Drosophila in which Rescue activity of an essential gene, dribble, requires splicing of a temperature-sensitive intein (TS-ClvRdbe ). This element spreads to transgene fixation at 23 °C, but when populations now dependent on Ts-ClvRdbe are shifted to 29 °C, death and sterility result in a rapid population crash. These results show that conditional population elimination can be achieved. A similar logic, in which Rescue activity is conditional, could also be used in homing-based drive and to bring about suppression and/or killing of specific individuals in response to other stimuli.
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Affiliation(s)
- Georg Oberhofer
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125
| | - Tobin Ivy
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125
| | - Bruce A Hay
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125
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28
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Lalyer CR, Sigsgaard L, Giese B. Ecological vulnerability analysis for suppression of Drosophila suzukii by gene drives. Glob Ecol Conserv 2021. [DOI: 10.1016/j.gecco.2021.e01883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Tait G, Mermer S, Stockton D, Lee J, Avosani S, Abrieux A, Anfora G, Beers E, Biondi A, Burrack H, Cha D, Chiu JC, Choi MY, Cloonan K, Crava CM, Daane KM, Dalton DT, Diepenbrock L, Fanning P, Ganjisaffar F, Gómez MI, Gut L, Grassi A, Hamby K, Hoelmer KA, Ioriatti C, Isaacs R, Klick J, Kraft L, Loeb G, Rossi-Stacconi MV, Nieri R, Pfab F, Puppato S, Rendon D, Renkema J, Rodriguez-Saona C, Rogers M, Sassù F, Schöneberg T, Scott MJ, Seagraves M, Sial A, Van Timmeren S, Wallingford A, Wang X, Yeh DA, Zalom FG, Walton VM. Drosophila suzukii (Diptera: Drosophilidae): A Decade of Research Towards a Sustainable Integrated Pest Management Program. JOURNAL OF ECONOMIC ENTOMOLOGY 2021; 114:1950-1974. [PMID: 34516634 DOI: 10.1093/jee/toab158] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Indexed: 05/17/2023]
Abstract
Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) also known as spotted-wing drosophila (SWD), is a pest native to Southeast Asia. In the last few decades, the pest has expanded its range to affect all major European and American fruit production regions. SWD is a highly adaptive insect that is able to disperse, survive, and flourish under a range of environmental conditions. Infestation by SWD generates both direct and indirect economic impacts through yield losses, shorter shelf life of infested fruit, and increased production costs. Fresh markets, frozen berries, and fruit export programs have been impacted by the pest due to zero tolerance for fruit infestation. As SWD control programs rely heavily on insecticides, exceedance of maximum residue levels (MRLs) has also resulted in crop rejections. The economic impact of SWD has been particularly severe for organic operations, mainly due to the limited availability of effective insecticides. Integrated pest management (IPM) of SWD could significantly reduce chemical inputs but would require substantial changes to horticultural management practices. This review evaluates the most promising methods studied as part of an IPM strategy against SWD across the world. For each of the considered techniques, the effectiveness, impact, sustainability, and stage of development are discussed.
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Affiliation(s)
- Gabriella Tait
- Department of Horticulture, Oregon State University, Corvallis, OR, USA
| | - Serhan Mermer
- Department of Horticulture, Oregon State University, Corvallis, OR, USA
| | - Dara Stockton
- USDA-ARS Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI, USA
| | - Jana Lee
- USDA-ARS Horticultural Crops Research Unit, Corvallis, OR, USA
| | - Sabina Avosani
- Department of Civil, Environmental and Mechanical Engineering, University of Trento, Trento, Italy
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Antoine Abrieux
- Department of Entomology and Nematology, University of California, Davis, CA, USA
| | - Gianfranco Anfora
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
- Center Agriculture Food Environment, University of Trento, San Michele all'Adige, Trentino, Italy
| | - Elizabeth Beers
- Tree Fruit Research & Extension Center, Washington State University, Wenatchee, WA, USA
| | - Antonio Biondi
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
| | - Hannah Burrack
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA
| | - Dong Cha
- USDA-ARS Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, HI, USA
| | - Joanna C Chiu
- Department of Entomology and Nematology, University of California, Davis, CA, USA
| | - Man-Yeon Choi
- USDA-ARS Horticultural Crops Research Unit, Corvallis, OR, USA
| | | | - Cristina M Crava
- Institute of Biotechnology and Biomedicine (BIOTECMED), University of Valencia, Valencia, Spain
| | - Kent M Daane
- Kearney Agricultural Research and Education Center, Parlier, CA, USA
- Department of Environmental Science, Policy & Management, University of California Berkeley, Berkeley, CA, USA
| | - Daniel T Dalton
- Faculty of Engineering & IT, Carinthia University of Applied Sciences, 9524, Villach, Austria
| | - Lauren Diepenbrock
- Citrus Research and Education Center, Entomology and Nematology Department, University of Florida, Lake Alfred, FL, USA
| | - Phillip Fanning
- USDA Economic Research Service, Market Trade and Economics Division, Kansas City, MO, USA
| | - Fatemeh Ganjisaffar
- Department of Entomology and Nematology, University of California, Davis, CA, USA
| | - Miguel I Gómez
- Dyson School of Applied Economics and Management, Cornell University, Ithaca, NY, USA
| | - Larry Gut
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - Alberto Grassi
- Technology Transfer Center, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Kelly Hamby
- Department of Entomology, University of Maryland, College Park, MD, USA
| | - Kim A Hoelmer
- USDA-ARS Beneficial Insects Introduction Research Unit, Newark, DE, USA
| | - Claudio Ioriatti
- Technology Transfer Center, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Rufus Isaacs
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | | | - Laura Kraft
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA
| | - Gregory Loeb
- Department of Entomology, Cornell AgriTech, Geneva, NY, USA
| | | | - Rachele Nieri
- Department of Civil, Environmental and Mechanical Engineering, University of Trento, Trento, Italy
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Ferdinand Pfab
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA, USA
| | - Simone Puppato
- Technology Transfer Center, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Dalila Rendon
- Department of Horticulture, Oregon State University, Corvallis, OR, USA
| | - Justin Renkema
- London Research and Development Centre - Vineland Campus, Agriculture and Agri-Food Canada, Vineland, ON, Canada
| | | | - Mary Rogers
- Department of Horticultural Science, University of Minnesota, Saint Paul, MN, USA
| | - Fabiana Sassù
- Department of Forest and Soil Sciences, BOKU, University of Natural Resources and Life Sciences, Vienna, Austria
- Insect Pest Control Section, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Vienna, Austria
| | | | - Maxwell J Scott
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA
| | | | - Ashfaq Sial
- Department of Entomology, University of Georgia, Athens, GA, USA
| | | | - Anna Wallingford
- Department of Agriculture Nutrition and Food Systems, University of New Hampshire, Durham, NH, USA
| | - Xingeng Wang
- USDA-ARS Beneficial Insects Introduction Research Unit, Newark, DE, USA
| | - D Adeline Yeh
- USDA Economic Research Service, Market Trade and Economics Division, Kansas City, MO, USA
| | - Frank G Zalom
- Department of Entomology and Nematology, University of California, Davis, CA, USA
| | - Vaughn M Walton
- Department of Horticulture, Oregon State University, Corvallis, OR, USA
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30
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Ben-Yosef M, Verykouki E, Altman Y, Nemni-Lavi E, Papadopoulos NT, Nestel D. Effects of Thermal Acclimation on the Tolerance of Bactrocera zonata (Diptera: Tephritidae) to Hydric Stress. Front Physiol 2021; 12:686424. [PMID: 34539427 PMCID: PMC8446596 DOI: 10.3389/fphys.2021.686424] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 06/28/2021] [Indexed: 11/23/2022] Open
Abstract
Insects, similarly to other small terrestrial invertebrates, are particularly susceptible to climatic stress. Physiological adjustments to cope with the environment (i.e., acclimation) together with genetic makeup eventually determine the tolerance of a species to climatic extremes, and constrain its distribution. Temperature and desiccation resistance in insects are both conditioned by acclimation and may be interconnected, particularly for species inhabiting xeric environments. We determined the effect of temperature acclimation on desiccation resistance of the peach fruit fly (Bactrocera zonata, Tephritidae) – an invasive, polyphagous pest, currently spreading through both xeric and mesic environments in Africa and the Eurasian continent. Following acclimation at three constant temperatures (20, 25, and 30°C), the survival of adult flies deprived of food and water was monitored in extreme dry and humid conditions (<10 and >90% relative humidity, respectively). We found that flies acclimated at higher temperatures were significantly heavier, and contained more lipids and protein. Acclimation temperature significantly and similarly affected the survival of males and females at both high and low humidity conditions. In both cases, flies maintained at 30°C survived longer compared to 20 and 25°C – habituated counterparts. Regardless of the effect of acclimation temperature on survival, overall life expectancy was significantly shortened when flies were assayed under desiccating conditions. Additionally, our experiments indicate no significant difference in survival patterns between males and females, and that acclimation temperature had similar effects after both short (5–10 days) and long (11–20 days) acclimation periods. We conclude that acclimation at 30°C prolongs the survival of B. zonata, regardless of ambient humidity levels. Temperature probably affected survival through modulating feeding and metabolism, allowing for accumulation of larger energetic reserves, which in turn, promoted a greater ability to resist starvation, and possibly desiccation as well. Our study set the grounds for understanding the phenotypic plasticity of B. zonata from the hydric perspective, and for further evaluating the invasion potential of this pest.
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Affiliation(s)
- Michael Ben-Yosef
- Department of Entomology, Institute of Plant Protection, Agricultural Research Organization, Bet Dagan, Israel
| | - Eleni Verykouki
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - Yam Altman
- Department of Entomology, Institute of Plant Protection, Agricultural Research Organization, Bet Dagan, Israel
| | - Esther Nemni-Lavi
- Department of Entomology, Institute of Plant Protection, Agricultural Research Organization, Bet Dagan, Israel
| | - Nikos T Papadopoulos
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - David Nestel
- Department of Entomology, Institute of Plant Protection, Agricultural Research Organization, Bet Dagan, Israel
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31
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Elsensohn JE, Schal C, Burrack HJ. Plasticity in Oviposition Site Selection Behavior in Drosophila suzukii (Diptera: Drosophilidae) in Relation to Adult Density and Host Distribution and Quality. JOURNAL OF ECONOMIC ENTOMOLOGY 2021; 114:1517-1522. [PMID: 34114635 DOI: 10.1093/jee/toab108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Indexed: 06/12/2023]
Abstract
Flexibility in oviposition site selection under temporally shifting environmental conditions is an important trait that allows many polyphagous insects to flourish. Population density has been shown to affect egg-laying and offspring fitness throughout the animal kingdom. The effects of population density in insects have been suggested to be mutualistic at low densities, whereas intraspecific competition is exhibited at high densities. Here, we explore the effects of adult crowding and spatial resource variation on oviposition rate in the invasive pest Drosophila suzukii (Matsumura). In a series of laboratory experiments, we varied the density of adult males and females while holding oviposition substrate availability constant and measured per female oviposition rate using high and low-quality substrates. We found that oviposition behavior was affected more by substrate than adult density, though both variables had significant effects. When we varied the spatial arrangement of whole raspberries, we observed differences in oviposition rate and egg distribution between the grouped and solitary female treatments. Our results suggest that social interactions encourage oviposition, especially when exposed to unfamiliar or unnatural substrates. These results highlight the compensating effect of increased oviposition rate per female as adult populations decline. They will help researchers and crop managers better understand in-field population dynamics throughout the season as population densities change.
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Affiliation(s)
- Johanna E Elsensohn
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA
| | - Coby Schal
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA
| | - Hannah J Burrack
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA
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32
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Sanané I, Legrand J, Dillmann C, Marion-Poll F. High-Throughput Feeding Bioassay for Lepidoptera Larvae. J Chem Ecol 2021; 47:642-652. [PMID: 34331170 PMCID: PMC8346434 DOI: 10.1007/s10886-021-01290-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/21/2021] [Accepted: 06/10/2021] [Indexed: 12/03/2022]
Abstract
Finding plant cultivars that are resistant or tolerant against lepidopteran pests, takes time, effort and is costly. We present here a high throughput leaf-disk consumption assay system, to screen plants for resistance or chemicals for their deterrence. A webcam capturing images at regular intervals can follow the feeding activities of 150 larvae placed into individual cages. We developed a computer program running under an open source image analysis program to analyze and measure the surface of each leaf disk over time. We further developed new statistical procedures to analyze the time course of the feeding activities of the larvae and to compare them between treatments. As a test case, we compared how European corn borer larvae respond to a commercial antifeedant containing azadirachtin, and to quinine, which is a bitter alkaloid for many organisms. As expected, increasing doses of azadirachtin reduced and delayed feeding. However, quinine was poorly effective at the range of concentrations tested (10-5 M to 10-2 M). The model cage, the camera holder, the plugins, and the R scripts are freely available, and can be modified according to the users' needs.
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Affiliation(s)
- Inoussa Sanané
- Université Paris-Saclay, INRAE, CNRS, AgroParisTech, GQE - Le Moulon, 91190, Gif-sur-Yvette, France
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198, Gif-sur-Yvette, France
| | - Judith Legrand
- Université Paris-Saclay, INRAE, CNRS, AgroParisTech, GQE - Le Moulon, 91190, Gif-sur-Yvette, France
| | - Christine Dillmann
- Université Paris-Saclay, INRAE, CNRS, AgroParisTech, GQE - Le Moulon, 91190, Gif-sur-Yvette, France
| | - Frédéric Marion-Poll
- Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198, Gif-sur-Yvette, France.
- Université Paris-Saclay, AgroParisTech, Paris, France.
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33
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Neven LG, Wakie T, Yee WL. The Eclosion of Rhagoletis pomonella (Diptera: Tephritidae) Under Different Chill Durations and Simulated Temperate and Tropical Conditions. ENVIRONMENTAL ENTOMOLOGY 2021; 50:706-712. [PMID: 33822024 DOI: 10.1093/ee/nvab018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Indexed: 06/12/2023]
Abstract
The apple maggot fly, Rhagoletis pomonella (Walsh) (Diptera: Tephritidae), is a serious pest of apple in North America that is subject to quarantine measures to prevent its spread to currently pest-free regions, including the tropics. How the fly may survive in warmer climates is unclear. Here, we studied the effects of exposing postchill puparia to simulated temperate and tropical environmental conditions on eclosion of R. pomonella from Washington State, U.S.A. Puparia were chilled for 0-30 wk at 3°C and then held under four postchill conditions: A = 23°C, 16:8 L:D, 40% RH; B = 26°C, 12:12 L:D, 80% RH; C = 26°C, 16:8 L:D, 80% RH; and D = 23°C, 12:12 L:D, 40% RH, with B and D representing tropical conditions and A and C temperate conditions. Within each chill duration, total numbers of flies eclosed were equally high in tropical treatment B and temperate treatment C, while they were lower in treatments A and D. Mean weeks of the first eclosion in treatments B and C were earlier than in treatment D; mean week of peak eclosion and 50% eclosion in treatments A, B, and C were earlier than in treatment D. Eclosion spans in treatments A, B, and D were generally shorter than in treatment C. Results suggest that if introduced into a humid tropical country, R. pomonella puparia from Washington State could produce adult flies, regardless of chill duration or lack of chilling during the pupal stage, but whether flies could establish there would require further study.
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Affiliation(s)
- Lisa G Neven
- USDA-ARS, Temperate Tree Fruit and Vegetable Research Unit, Wapato, WA, USA
| | | | - Wee L Yee
- USDA-ARS, Temperate Tree Fruit and Vegetable Research Unit, Wapato, WA, USA
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Little CM, Dixon PL, Moreau DL, Chapman TW, Hillier NK. Assessment of Attractant Lures and Monitoring Traps for Drosophila suzukii (Diptera: Drosophidae) Using Electrophysiology, Laboratory Choice Assays, and Field Trials. JOURNAL OF ECONOMIC ENTOMOLOGY 2021; 114:652-675. [PMID: 33704447 DOI: 10.1093/jee/toab006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Indexed: 06/12/2023]
Abstract
Monitoring is critical to control efforts for Drosophila suzukii Matsumura, an invasive polyphagous fly that has the potential to cause significant losses in commercial soft fruit and berry production worldwide. We used an iterative process to identify trap colors, trap designs, and volatile mixtures to improve monitoring efforts in commercial blueberry, raspberry, and blackberry crops. Our results suggest that the selection of trap color and design and attractant lures should be customized to the crop in which they are deployed. In raspberries grown in high tunnel systems, DrosaLure paired with Drosal traps painted green and purple were highly specific to D. suzukii although actual capture counts were low. However, in field grown raspberries, BioLure and Multilure traps were most effective, but with significant nontarget bycatch. In blueberries, we had greatest success with a 5 µg:50 ng mixture of ethyl acetate-acetoin in a green/purple-colored jar-style trap with large (5 cm) mesh covered openings.
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Affiliation(s)
- Catherine M Little
- Department of Biology, Acadia University, Wolfville, Nova Scotia, Canada
- Department of Biology, Memorial University of Newfoundland and Labrador, St. John's, Newfoundland, Canada
| | - Peggy L Dixon
- St. John's Research and Development Centre, Agriculture and Agri-Food Canada, St. John's, Newfoundland, Canada
| | - Debra L Moreau
- Kentville Research and Development Centre, Agriculture and Agri-Food Canada, Kentville, Nova Scotia, Canada
| | - Thomas W Chapman
- Department of Biology, Memorial University of Newfoundland and Labrador, St. John's, Newfoundland, Canada
| | - N Kirk Hillier
- Department of Biology, Acadia University, Wolfville, Nova Scotia, Canada
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Weißinger L, Arand K, Bieler E, Kassemeyer HH, Breuer M, Müller C. Physical and Chemical Traits of Grape Varieties Influence Drosophila suzukii Preferences and Performance. FRONTIERS IN PLANT SCIENCE 2021; 12:664636. [PMID: 33968118 PMCID: PMC8098983 DOI: 10.3389/fpls.2021.664636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 03/24/2021] [Indexed: 05/12/2023]
Abstract
The cuticle-covered surface forms the interface between plant parts, including fruits, and their environment. The physical and chemical properties of fruit surfaces profoundly influence plant-frugivore interactions by shaping the susceptibility and suitability of the host for the attacker. Grapevine (Vitis vinifera, Vitaceae) serves as one of the various host plants of the spotted wing drosophila, Drosophila suzukii Matsumura (Diptera: Drosophilidae), which is invasive in several parts of the world and can cause major crop losses. The susceptibility of wine towards this pest species differs widely among varieties. The objective of our study was to identify physical and chemical traits of the berry surface that may explain the differences in susceptibility of five grape varieties to D. suzukii. Both preferences of adult D. suzukii and offspring performance on intact versus dewaxed (epicuticular wax layer mechanically removed) grape berries were investigated in dual-choice assays. Moreover, the morphology and chemical composition of cuticular waxes and cutin of the different varieties were analyzed. Bioassays revealed that the epicuticular wax layer of most tested grape varieties influenced the preference behavior of adult flies; even less susceptible varieties became more susceptible after removal of these waxes. In contrast, neither offspring performance nor berry skin firmness were affected by the epicuticular wax layer. The wax morphology and the composition of both epi- and intracuticular waxes differed pronouncedly, especially between more and less susceptible varieties, while cutin was dominated by ω-OH-9/10-epoxy-C18 acid and the amount was comparable among varieties within sampling time. Our results highlight the underestimated role of the epicuticular surface and cuticle integrity in grape susceptibility to D. suzukii.
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Affiliation(s)
- Lisa Weißinger
- Department of Chemical Ecology, Bielefeld University, Bielefeld, Germany
- Nano Imaging Lab, Swiss Nano Science Institute, University of Basel, Basel, Switzerland
| | - Katja Arand
- Julius-von-Sachs-Institute for Biosciences, University of Würzburg, Würzburg, Germany
- Bavarian State Institute for Viticulture and Horticulture, Veitshöchheim, Germany
| | - Evi Bieler
- Nano Imaging Lab, Swiss Nano Science Institute, University of Basel, Basel, Switzerland
| | | | - Michael Breuer
- State Institute of Viticulture and Enology (WBI), Freiburg im Breisgau, Germany
| | - Caroline Müller
- Department of Chemical Ecology, Bielefeld University, Bielefeld, Germany
- *Correspondence: Caroline Müller,
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