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Kean JM, Manoukis NC, Dominiak BC. Review of surveillance systems for tephritid fruit fly threats in Australia, New Zealand, and the United States. JOURNAL OF ECONOMIC ENTOMOLOGY 2024; 117:8-23. [PMID: 38141199 PMCID: PMC10860160 DOI: 10.1093/jee/toad228] [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: 08/08/2023] [Revised: 10/23/2023] [Accepted: 12/04/2023] [Indexed: 12/25/2023]
Abstract
Many countries conduct fruit fly surveillance but, while there are guidelines, practices vary widely. This review of some countries in the Pacific region demonstrates the diversity of fruit fly surveillance practices. All utilize 3 parapheromones-trimedlure, cuelure, and methyl eugenol-to trap adult male fruit flies. Some target species are not attracted to these compounds so other attractants such as food-based lures are used in certain areas or circumstances. Lure loading and replacement cycles depend on the target species and the local climate. Malathion and dichlorvos (DDVP) are commonly used toxicants, but not in all countries, and other toxicants are being developed to replace these older-generation pesticides. Jackson and Lynfield are commonly used trap designs but newer designs such as cone and Biotrap are being adopted. Local factors such as chemical registrations and climate affect the choice of trap, lure, dispenser, toxicant, and bait concentration. These choices affect the efficacy of traps, in turn influencing optimal trap deployment in space and time. Most states now follow similar practices around trap inspection, servicing, and data handling, but these processes will be disrupted by emerging automated trap technologies. Ultimately, different practices can be attributed to the unique fruit fly risk profiles faced by each state, particularly the suite of fruit flies already present and those that threaten from nearby. Despite the diversity of approaches, international trade in fruit continues with the assurance that fruit fly surveillance practices evolve and improve according to each country's risk profile and incursion experience.
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Affiliation(s)
- John M Kean
- Ruakura Science Centre, AgResearch, 10 Bisley Rd, Hamilton 3214, New Zealand
| | - Nicholas C Manoukis
- Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, 64 Nowelo St, Hilo 96720, HI, USA
| | - Bernie C Dominiak
- New South Wales Department of Primary Industries, The Ian Armstrong Building, 105 Prince St, Orange 2800, Australia
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2
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Soares GKA, Fidelis EG, Ramos RS, de Aguiar Paes JL, da Silva RS. Spatio-temporal Distribution of Bactrocera carambolae with and without Irrigation using CLIMEX Modeling. NEOTROPICAL ENTOMOLOGY 2024; 53:91-100. [PMID: 38091235 DOI: 10.1007/s13744-023-01105-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 11/14/2023] [Indexed: 02/03/2024]
Abstract
The carambola fruit fly Bactrocera carambolae Drew and Hancock (Diptera: Tephritidae) is an invasive fruit fly reported in North Brazil that threatens Brazilian fruit culture. Assessing the potential risk of establishing this pest is necessary to reduce the threat of B. carambolae dispersion to other countries and Brazilian regions and to avoid damage to the fruit trade. In this study, the CLIMEX model was used to understand the response of B. carambolae to climate change and to determine its potential global distribution with and without irrigation practices. Based on ecophysiological parameters, the model simulates factors limiting species distribution concerning the climate. To assess the seasonal variation in the density of B. carambolae, monitoring data in Uiramutã municipality, Roraima, from 2013 to 2019 was used. According to the CLIMEX forecast, large parts of America, Africa, and Asia, mainly in areas closest to the equator, are highly suitable for the survival of B. carambolae. Brazil is a good part of its territory with high suitability for B. carambolae, especially the North, South, and Southeast regions and the entire coastal area. The periods of the highest climatic suitability in the five Brazilian regions were January-May and October-December. The potential distribution area expands under irrigation and is highly suitable for most areas without cold stress. The CLIMEX model for B. carambolae generated in the present study provides important information for the Brazilian eradication program and other surveillance activities established in pest-free areas.
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Affiliation(s)
- Gil Kleves Araújo Soares
- Agência de Defesa e Inspeção Agropecuáriado Estado do Amapá, Macapa, Brazil
- Univ Federal de Viçosa, Viçosa, Brasil
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3
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Zhao Z, Carey JR, Li Z. The Global Epidemic of Bactrocera Pests: Mixed-Species Invasions and Risk Assessment. ANNUAL REVIEW OF ENTOMOLOGY 2024; 69:219-237. [PMID: 37708416 DOI: 10.1146/annurev-ento-012723-102658] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Throughout the past century, the global spread of Bactrocera pests has continued to pose a significant threat to the commercial fruit and vegetable industry, resulting in substantial costs associated with both control measures and quarantine restrictions. The increasing volume of transcontinental trade has contributed to an escalating rate of Bactrocera pest introductions to new regions. To address the worldwide threat posed by this group of pests, we first provide an overview of Bactrocera. We then describe the global epidemic, including border interceptions, species diagnosis, population genetics, geographical expansion, and invasion tracing of Bactrocera pests. We further consider the literature concerning the invasion co-occurrences, life-history flexibility, risk assessment, bridgehead effects, and ongoing implications of invasion recurrences, as well as a case study of Bactrocera invasions of California. Finally, we call for global collaboration to effectively monitor, prevent, and control the ongoing spread of Bactrocera pests and to share experience and knowledge to combat it.
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Affiliation(s)
- Zihua Zhao
- Department of Plant Biosecurity, College of Plant Protection, China Agricultural University, Beijing, China, ,
- MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, China Agricultural University, Beijing, China
| | - James R Carey
- Department of Entomology and Nematology, University of California, Davis, California, USA,
| | - Zhihong Li
- Department of Plant Biosecurity, College of Plant Protection, China Agricultural University, Beijing, China, ,
- MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, China Agricultural University, Beijing, China
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4
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Papadopoulos NT, De Meyer M, Terblanche JS, Kriticos DJ. Fruit Flies: Challenges and Opportunities to Stem the Tide of Global Invasions. ANNUAL REVIEW OF ENTOMOLOGY 2024; 69:355-373. [PMID: 37758223 DOI: 10.1146/annurev-ento-022723-103200] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Global trade in fresh fruit and vegetables, intensification of human mobility, and climate change facilitate fruit fly (Diptera: Tephritidae) invasions. Life-history traits, environmental stress response, dispersal stress, and novel genetic admixtures contribute to their establishment and spread. Tephritids are among the most frequently intercepted taxa at ports of entry. In some countries, supported by the rules-based trade framework, a remarkable amount of biosecurity effort is being arrayed against the range expansion of tephritids. Despite this effort, fruit flies continue to arrive in new jurisdictions, sometimes triggering expensive eradication responses. Surprisingly, scant attention has been paid to biosecurity in the recent discourse about new multilateral trade agreements. Much of the available literature on managing tephritid invasions is focused on a limited number of charismatic (historically high-profile) species, and the generality of many patterns remains speculative.
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Affiliation(s)
- Nikos T Papadopoulos
- Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Volos, Greece;
| | - Marc De Meyer
- Department of Biology, Royal Museum for Central Africa, Tervuren, Belgium;
| | - John S Terblanche
- Department of Conservation Ecology & Entomology, Stellenbosch University, Stellenbosch, South Africa;
| | - Darren J Kriticos
- Cervantes Agritech, Canberra, Australian Capital Territory, Australia;
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Rizzo D, Zubieta CG, Sacchetti P, Marrucci A, Miele F, Ascolese R, Nugnes F, Bernardo U. Diagnostic Tool for the Identification of Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) Using Real-Time PCR. INSECTS 2024; 15:44. [PMID: 38249050 PMCID: PMC10815988 DOI: 10.3390/insects15010044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/22/2023] [Accepted: 01/05/2024] [Indexed: 01/23/2024]
Abstract
Accurate identification of Bactrocera dorsalis (Hendel) (Diptera: Tephritidae), commonly known as the Oriental fruit fly, is a significant challenge due to the morphological convergence and taxonomic uncertainties of species belonging to the same genus. This highly polyphagous species poses a significant threat to fruit crops. With its potential establishment in Europe becoming a growing concern, there is an urgent need for rapid and efficient diagnostic methods. The study presented here introduces a diagnostic protocol based on real-time PCR using a TaqMan probe for the early and reproducible identification of B. dorsalis. Specimens representing the genetic diversity of the Italian population were collected and analyzed. Specific primers and probe were designed based on the conserved regions and an in silico analysis confirmed their specificity. The assay conditions were optimized, and analytical sensitivity, specificity, repeatability, and reproducibility were evaluated. The protocol showed high sensitivity and specificity, accurately detecting low DNA concentrations of B. dorsalis. This standardized method provides a reliable tool for routine diagnostics, enhancing the accuracy and efficiency of identifying the Oriental fruit fly at all stages of its development, thereby facilitating effective pest management measures. The development of this diagnostic protocol is crucial for monitoring and supporting efforts to prevent the passive spread of B. dorsalis in Europe, particularly in light of the recent active infestations detected in Italy.
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Affiliation(s)
- Domenico Rizzo
- Laboratory of Phytopathological Diagnostics and Molecular Biology, Plant Protection Service of Tuscany, Via Ciliegiole 99, 51100 Pistoia, Italy; (D.R.); (C.G.Z.); (A.M.)
| | - Claudia Gabriela Zubieta
- Laboratory of Phytopathological Diagnostics and Molecular Biology, Plant Protection Service of Tuscany, Via Ciliegiole 99, 51100 Pistoia, Italy; (D.R.); (C.G.Z.); (A.M.)
| | - Patrizia Sacchetti
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Piazzale delle Cascine, 18, 50144 Florence, Italy;
| | - Andrea Marrucci
- Laboratory of Phytopathological Diagnostics and Molecular Biology, Plant Protection Service of Tuscany, Via Ciliegiole 99, 51100 Pistoia, Italy; (D.R.); (C.G.Z.); (A.M.)
- Department of Agricultural Food and Agro-Environmental Sciences, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
| | - Fortuna Miele
- Institute for Sustainable Plant Protection (IPSP), National Research Council (CNR), P.le Enrico Fermi 1, 80055 Portici, Italy; (F.M.); (R.A.); (F.N.)
| | - Roberta Ascolese
- Institute for Sustainable Plant Protection (IPSP), National Research Council (CNR), P.le Enrico Fermi 1, 80055 Portici, Italy; (F.M.); (R.A.); (F.N.)
- Department of Biology, University of Naples Federico II, Via Vicinale Cupa Cintia 21, 80126 Napoli, Italy
| | - Francesco Nugnes
- Institute for Sustainable Plant Protection (IPSP), National Research Council (CNR), P.le Enrico Fermi 1, 80055 Portici, Italy; (F.M.); (R.A.); (F.N.)
| | - Umberto Bernardo
- Institute for Sustainable Plant Protection (IPSP), National Research Council (CNR), P.le Enrico Fermi 1, 80055 Portici, Italy; (F.M.); (R.A.); (F.N.)
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Hoskins JL, Rempoulakis P, Stevens MM, Dominiak BC. Biosecurity and Management Strategies for Economically Important Exotic Tephritid Fruit Fly Species in Australia. INSECTS 2023; 14:801. [PMID: 37887813 PMCID: PMC10607784 DOI: 10.3390/insects14100801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/22/2023] [Accepted: 09/28/2023] [Indexed: 10/28/2023]
Abstract
Exotic tephritid incursions are of high concern to Australia's biosecurity and its horticultural industries. It is vital that Australia remains ready to respond to incursions as they arise, as an incursion of tephritid fruit fly species will result in significant economic losses. In this review, we compared Australian incursion management strategies for fruit flies with global management strategies and identified possible areas where improvements could be made in an Australian context. Overall, Australia has a good understanding of the main tephritid threats, of which Bactrocera species from across the Torres Strait (northern Australia) are of most concern. Effective tools for tephritid detection and early warning surveillance at points of entry are in place at ports and in horticultural areas Australia-wide and provide the basis for initiating biosecurity responses in the event of an incursion. Area-wide control measures used in successful eradication attempts globally are available for use in Australia. However, a specific tephritid emergency response plan identifying suitable response measures and control options for species of concern is not yet available. We have identified that Australia has the policies and management tools available to respond to an exotic tephritid incursion, but the speed at which this could be accomplished would be greatly improved by the development of species-specific emergency response plans.
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Affiliation(s)
- Jessica L. Hoskins
- Yanco Agricultural Institute, New South Wales Department of Primary Industries, Private Mail Bag, Yanco, NSW 2703, Australia;
| | - Polychronis Rempoulakis
- Central Coast Primary Industries Centre, New South Wales Department of Primary Industries, Locked Bag 26, Gosford, NSW 2250, Australia;
| | - Mark M. Stevens
- Yanco Agricultural Institute, New South Wales Department of Primary Industries, Private Mail Bag, Yanco, NSW 2703, Australia;
| | - Bernard C. Dominiak
- The Ian Armstrong Building, New South Wales Department of Primary Industries, 105 Prince Street, Orange, NSW 2280, Australia;
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Moquet L, Jobart B, Fontaine R, Delatte H. Tri-trophic interactions among Fopius arisanus, Tephritid species and host plants suggest apparent competition. Ecol Evol 2023; 13:e9742. [PMID: 36644698 PMCID: PMC9834009 DOI: 10.1002/ece3.9742] [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: 09/20/2022] [Revised: 12/14/2022] [Accepted: 12/27/2022] [Indexed: 01/13/2023] Open
Abstract
When several polyphagous herbivore species share a parasitoid, the tri-trophic interaction networks can be difficult to predict. In addition to direct effects, the parasitoid may influence the herbivore community by mediating indirect interactions among hosts. The plant species can also modulate the parasitoid preference for a specific host. One of the indirect effects is apparent competition, a negative interaction between individuals as a result of the action of shared natural enemies. Here, we focus on the interactions between the parasitoid Fopius arisanus (Braconidae) and two generalist fruit fly pests: Bactrocera dorsalis and Bactrocera zonata (Tephritidae). This parasitoid was introduced into La Réunion in 2003 to control populations of B. zonata and can also interact with B. dorsalis since its invasion in 2017. Our main objective is to characterize the tri-trophic interactions between F. arisanus, fruit fly and host plant species. We developed a long-term field database of fruit collected before and after the parasitoid introduction and after the B. dorsalis invasion in order to compare parasitism rate and fruit fly infestation for the different periods. In laboratory assays, we investigated how the combination of fruit fly species and fruit can influence the preference of F. arisanus. In the field, before the invasion of B. dorsalis, the parasitism rate of F. arisanus was low and had a little impact on the fruit fly infestation rate. After the B. dorsalis invasion, we observed an increase in parasitism rate from 5% to 17%. A bioassay showed that females of F. arisanus could discriminate between eggs of different fruit fly and host plant species. The host plant species preference changed in relation to the fruit fly species inoculated. Field observations and laboratory experiments suggest the possible existence of apparent competition between B. dorsalis and B. zonata via F. arisanus.
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Clarke AR, Leach P, Measham PF. The Fallacy of Year-Round Breeding in Polyphagous Tropical Fruit Flies (Diptera: Tephritidae): Evidence for a Seasonal Reproductive Arrestment in Bactrocera Species. INSECTS 2022; 13:882. [PMID: 36292829 PMCID: PMC9604198 DOI: 10.3390/insects13100882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/19/2022] [Accepted: 09/24/2022] [Indexed: 06/16/2023]
Abstract
The genus Bactrocera (Diptera: Tephritidae) is endemic to the monsoonal rainforests of South-east Asia and the western Pacific where the larvae breed in ripe, fleshy fruits. While most Bactrocera remain rainforest restricted, species such as Bactrocera dorsalis, Bactrocera zonata and Bactrocera tryoni are internationally significant pests of horticulture, being both highly invasive and highly polyphagous. Almost universally in the literature it is assumed that Bactrocera breed continuously if temperature and hosts are not limiting. However, despite that, these flies show distinct seasonality. If discussed, seasonality is generally attributed to the fruiting of a particular breeding host (almost invariably mango or guava), but the question appears not to have been asked why flies do not breed at other times of the year despite other hosts being available. Focusing initially on B. tryoni, for which more literature is available, we demonstrate that the seasonality exhibited by that species is closely correlated with the seasons of its endemic rainforest environment as recognised by traditional Aboriginal owners. Evidence suggests the presence of a seasonal reproductive arrest which helps the fly survive the first two-thirds of the dry season, when ripe fruits are scarce, followed by a rapid increase in breeding at the end of the dry season as humidity and the availability of ripe fruit increases. This seasonal phenology continues to be expressed in human-modified landscapes and, while suppressed, it also partially expresses in long-term cultures. We subsequently demonstrate that B. dorsalis, across both its endemic and invasive ranges, shows a very similar seasonality although reversed in the northern hemisphere. While high variability in the timing of B. dorsalis population peaks is exhibited across sites, a four-month period when flies are rare in traps (Dec-Mar) is highly consistent, as is the fact that nearly all sites only have one, generally very sharp, population peak per year. While literature to support or deny a reproductive arrest in B. dorsalis is not available, available data is clear that continuous breeding does not occur in this species and that there are seasonal differences in reproductive investment. Throughout the paper we reinforce the point that our argument for a complex reproductive physiology in Bactrocera is based on inductive reasoning and requires specific, hypothesis-testing experiments to confirm or deny, but we do believe there is ample evidence to prioritise such research. If it is found that species in the genus undergo a true reproductive diapause then there are very significant implications for within-field management, market access, and biosecurity risk planning which are discussed. Arguably the most important of these is that insects in diapause have greater stress resistance and cold tolerance, which could explain how tropical Bactrocera species have managed to successfully invade cool temperate regions.
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Affiliation(s)
- Anthony R. Clarke
- School of Biology and Environmental Science, Queensland University of Technology (QUT), P.O. Box 2434, Brisbane, QLD 4001, Australia
| | - Peter Leach
- Horticulture and Forestry Science, Department of Agriculture and Fisheries, P.O. Box 652, Cairns, QLD 4870, Australia
| | - Penelope F. Measham
- Horticulture and Forestry Science, Department of Agriculture and Fisheries, Ecosciences Precinct Dutton Park, P.O. Box 267, Dutton Park, QLD 4102, Australia
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Wang A, Peng S, Lian Y, Yang X, Jia J, Li J, Yang S, Zheng R, Zhou S. Distribution and interaction of the suitable areas of Beauveria bassiana and Bactrocera dorsalis (Hendel). Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.990747] [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
Climate is a key factor affecting the potential distribution of insects, and the host is another important constraint for the distribution of pests. To elucidate changes in the potential distribution of Beauveria bassiana under climate change scenarios, this paper used the data of two different greenhouse gas (GHG) emission scenarios (RCP2.6, RCP8.5) to predict the potential distribution of B. bassiana and its typical host, Bactrocera dorsalis (Hendel), based on the MaxEnt model. Then, the potential distribution of B. bassiana and B. dorsalis (Hendel) was compared, and their suitable growth area’s change and expansion trend under two different GHG emission scenarios were mastered. The results of this study show that the potential distribution area of B. bassiana will increase by 2,050 under the RCP8.5 climate scenario, mainly in central Europe and southwestern Asia, with an increased area of 3.28 × 105 km2. However, under the climate scenario of RCP2.6, the potential distribution area for B. bassiana decreased by 2.0 × 105 km2, mainly in North America. This study will provide a theoretical basis for the control of B. dorsalis (Hendel) with B. bassiana.
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Andrews KJ, Bester R, Manrakhan A, Maree HJ. A multiplex PCR assay for the identification of fruit flies (Diptera: Tephritidae) of economic importance in South Africa. Sci Rep 2022; 12:13089. [PMID: 35906478 PMCID: PMC9338231 DOI: 10.1038/s41598-022-17382-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 07/25/2022] [Indexed: 11/23/2022] Open
Abstract
The fruit fly (Diptera: Tephritidae) species, Ceratitis capitata, Ceratitis cosyra, Ceratitis rosa, Ceratitis quilicii, and Bactrocera dorsalis are of economic importance in South Africa. These agricultural pests cause extensive damage to a range of commercially produced fruit, primarily for export. These pests are of phytosanitary significance, and their presence in fruit-producing regions in South Africa has led to restrictions in export trade of fresh produce. Accurate identification of these flies, particularly at immature stages intercepted in fruit consignments originating from South Africa, is essential but remains an ongoing challenge. A rapid and accurate identification assay to differentiate these five species is needed for inspection and pest surveillance. High throughput sequencing data were generated for each of the five fruit fly species, and five sets of species-specific primers were designed for use in a multiplex PCR. Each primer set amplifies an amplicon of a different size for each species allowing for accurate identification. PCR sensitivity tests demonstrate that the limit of detection for this assay is 10 ng and 4 ng of DNA when extracted from larvae and adult specimens, respectively. The assay developed can be applied in fruit inspection and survey activities within the country and at ports of entry.
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Affiliation(s)
- Kelsey J Andrews
- Department of Genetics, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - Rachelle Bester
- Department of Genetics, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa.,Citrus Research International, PO Box 2201, Matieland, 7602, South Africa
| | - Aruna Manrakhan
- Citrus Research International, PO Box 28, Mbombela, 1200, South Africa.,Department of Conservation Ecology and Entomology, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - Hans J Maree
- Department of Genetics, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa. .,Citrus Research International, PO Box 2201, Matieland, 7602, South Africa.
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Pace R, Ascolese R, Miele F, Russo E, Griffo RV, Bernardo U, Nugnes F. The Bugs in the Bags: The Risk Associated with the Introduction of Small Quantities of Fruit and Plants by Airline Passengers. INSECTS 2022; 13:insects13070617. [PMID: 35886793 PMCID: PMC9323091 DOI: 10.3390/insects13070617] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/04/2022] [Accepted: 07/07/2022] [Indexed: 12/02/2022]
Abstract
Simple Summary This study was carried out with the aim of emphasizing the importance of checking the plant material that can be imported in the baggage of airline passengers. Travelers are often unaware of the regulations in place and of the risks connected with such importation. The risk of the introduction of harmful organisms correlated with this pathway is yet not well studied and its frequency is underestimated. The results of the research underline the need for continuous checks at entry points and the establishment of a specialized position for inspections. Abstract Among European countries, Italy is the most exposed to the risk of biological invasions, principally for its numerous entry points (ports and airports) and for climatic conditions favorable for the acclimatization of several invasive species. Here it was assessed that the greatest threats to our agro-ecosystems come mainly from the passenger baggage in which a variety of fruits and vegetables are carried. From 2016 to 2021, large quantities of plant products were found in the luggage of passengers travelling from outside the EU and seized at the BCPs (border control posts) in the Campania region. Inspections and the following laboratory analyses were conducted on the plant material to assess the presence of exotic pests. Inspections led to several non-native species being recorded, and among the intercepted organisms, some should be considered “alarming”, such as Bactrocera dorsalis, Anastrepha obliqua, and Leucinodes africensis. Despite a well-organized border inspection system, travelers transporting infested material unknowingly contribute to increasing the risk of the introduction of exotic species. Given the current situation, it is necessary to impose stricter controls and greater attention, ensuring compliance with the requirements of the new phytosanitary regulations by the actors involved in the transport of plant material. Finally, it is essential to improve awareness through a phytosanitary campaign on plant health risks, especially for people wishing to transport fruits and vegetables in their luggage.
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Affiliation(s)
- Roberta Pace
- Institute for Sustainable Plant Protection, National Research Council (CNR), 80055 Portici, Italy; (R.P.); (R.A.); (F.M.); (U.B.)
| | - Roberta Ascolese
- Institute for Sustainable Plant Protection, National Research Council (CNR), 80055 Portici, Italy; (R.P.); (R.A.); (F.M.); (U.B.)
| | - Fortuna Miele
- Institute for Sustainable Plant Protection, National Research Council (CNR), 80055 Portici, Italy; (R.P.); (R.A.); (F.M.); (U.B.)
| | - Elia Russo
- Department of Agricultural Sciences, University of Naples “Federico II”, 80055 Portici, Italy;
| | | | - Umberto Bernardo
- Institute for Sustainable Plant Protection, National Research Council (CNR), 80055 Portici, Italy; (R.P.); (R.A.); (F.M.); (U.B.)
| | - Francesco Nugnes
- Institute for Sustainable Plant Protection, National Research Council (CNR), 80055 Portici, Italy; (R.P.); (R.A.); (F.M.); (U.B.)
- Correspondence: ; Tel.: +39-0649-9327-286
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12
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Dong Z, He Y, Ren Y, Wang G, Chu D. Seasonal and Year-Round Distributions of Bactrocera dorsalis (Hendel) and Its Risk to Temperate Fruits under Climate Change. INSECTS 2022; 13:insects13060550. [PMID: 35735887 PMCID: PMC9225012 DOI: 10.3390/insects13060550] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/06/2022] [Accepted: 06/14/2022] [Indexed: 11/16/2022]
Abstract
Simple Summary The oriental fruit fly Bactrocera dorsalis (Hendel) is a pest species in the Tephritidae family that damages many fruits and vegetables. Dispersal of B. dorsalis is mediated by human activities (e.g., trade) and climate change, and it can cause serious damage to crops in newly invaded regions. Previous studies mainly focused on the areas potentially suitable for year-round reproduction, but it is unclear where the seasonal and year-round suitable areas are in the world. We used ecological niche models to predict the potential seasonal and year-round distribution areas of B. dorsalis. Bioclimate factors contributed differently to these two kinds of distributions. In the future, the areas suitable for B. dorsalis will increase, and the range will likely expand northward from existing locations. The spread of B. dorsalis in the seasonally suitable areas could threaten the production of some temperate fruits, including apples, peaches, pears, and oranges. Abstract Bactrocera dorsalis (Hendel) is an important pest to fruits and vegetables. It can damage more than 300 plant species. The distribution of B. dorsalis has been expanding owing to international trade and other human activities. B. dorsalis occurrence is strongly related to suitable overwintering conditions and distribution areas, but it is unclear where these seasonal and year-round suitable areas are. We used maximum entropy (MaxEnt) to predict the potential seasonal and year-round distribution areas of B. dorsalis. We also projected suitable habitat areas in 2040 and 2060 under global warming scenarios, such as SSP126 and SSP585. These models achieved AUC values of 0.860 and 0.956 for the seasonal and year-round scenarios, respectively, indicating their good prediction capabilities. The precipitation of the wettest month (Bio13) and the mean diurnal temperature range (Bio2) contributed 83.9% to the seasonal distribution prediction model. Bio2 and the minimum temperature of the coldest month (Bio6) provided important information related to the year-round distribution prediction. In future scenarios, the suitable area of B. dorsalis will increase and the range will expand northward. Four important temperate fruits, namely, apples, peaches, pears, and oranges, will be seriously threatened. The information from this study provides a useful reference for implementing improved population management strategies for B. dorsalis.
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Affiliation(s)
- Zhaoke Dong
- Engineering Research Center for Precision Pest Management for Fruits and Vegetables of Qingdao, Key Lab of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China; (Z.D.); (Y.H.)
| | - Yitong He
- Engineering Research Center for Precision Pest Management for Fruits and Vegetables of Qingdao, Key Lab of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China; (Z.D.); (Y.H.)
- College of Science, Health, Engineering and Education, Murdoch University, 90 South St., Murdoch, WA 6150, Australia;
| | - Yonglin Ren
- College of Science, Health, Engineering and Education, Murdoch University, 90 South St., Murdoch, WA 6150, Australia;
| | - Guanjin Wang
- Discipline of Information Technology, Murdoch University, Perth, WA 6150, Australia;
| | - Dong Chu
- Engineering Research Center for Precision Pest Management for Fruits and Vegetables of Qingdao, Key Lab of Integrated Crop Pest Management of Shandong Province, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China; (Z.D.); (Y.H.)
- Correspondence:
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13
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Detection of geographical specific plasticity and the effect of natural selection pressure on the wing size and shape of Bactrocera dorsalis (Diptera: Tephritidae). Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01059-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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14
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de M Oliveira RC, Zalucki MP, Pastori PL, Kriticos DJ. Current and future potential distributions of Helicoverpa punctigera (Lepidoptera: Noctuidae): is this the next FAW? BULLETIN OF ENTOMOLOGICAL RESEARCH 2022; 112:119-130. [PMID: 34474704 DOI: 10.1017/s0007485321000638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Helicoverpa punctigera (Wallengren), the native budworm, is an important highly polyphagous pest that has caused serious damage on a wide variety of crops in Australia. In Australia, its range overlaps that of its congener, Helicoverpa armigera (Hübner), a notorious invasive pest globally. We used CLIMEX, a bioclimatic niche modelling software package, to estimate the potential geographical distribution of H. punctigera under current and future climates (A1B scenario). Under both current and future climate conditions, the model indicates that H. punctigera could establish throughout the tropics and subtropics. Comparing the potential distributions under each climate scenario revealed that in the future its potential distribution is likely to shift poleward and into higher altitudes, into areas that are currently too cold as observed in the South of Brazil, Europe, North America, South East Asia, and South Pacific Islands including New Zealand. The projected potential distribution can inform pre- and post-border biosecurity strategies for the management of this pest in each country.
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Affiliation(s)
- Ruan C de M Oliveira
- Programa de Pós-graduação em Agronomia/Fitotecnia, Universidade Federal do Ceará - UFC, Av. Mister Hull, 2977, 60356-001, Fortaleza CE, Brazil
| | - Myron P Zalucki
- School of Biological Science, The University of Queensland, St Lucia, QLD4072, Australia
| | - Patrik L Pastori
- Programa de Pós-graduação em Agronomia/Fitotecnia, Universidade Federal do Ceará - UFC, Av. Mister Hull, 2977, 60356-001, Fortaleza CE, Brazil
| | - Darren J Kriticos
- School of Biological Science, The University of Queensland, St Lucia, QLD4072, Australia
- CSIRO Health & Biosecurity, P.O. Box 1700, Canberra, ACT2601, Australia
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Souza AV, Miranda EA, Passos JF, Araujo EL, Alvarenga CD, Silva JG. Predicting the Invasion Risk by Anastrepha sororcula (Diptera: Tephritidae) in Distinct Geographic Regions. NEOTROPICAL ENTOMOLOGY 2021; 50:989-998. [PMID: 34410677 DOI: 10.1007/s13744-021-00907-w] [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: 04/05/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
The movement of endemic fruit flies to new habitats represents a major biological and economic threat. Anastrepha sororcula Zucchi, 1979 is widely distributed in Brazil and also in Colombia, Ecuador, and Paraguay. Here, we present the potential distribution of A. sororcula in endemic areas and project this model into other regions such as part of sub-Saharan Africa, Central America, and Asia to show areas around the world that this species can potentially establish. We combined geographic coordinates with climate data. The models were built using the maximum entropy (MaxEnt) algorithm. Many mango- and guava-producing countries exhibited climatic suitability for A. sororcula in the regions studied including the nine largest world producers: India, Brazil, Malawi, Kenya, Haiti, Cuba, Colombia, Madagascar, and the Democratic Republic of the Congo. Many of these countries showed ideal host plant availability and climatic conditions for the entry and establishment of A. sororcula. This study is a pioneer in the identification of representative areas in the world with climatic suitability for A. sororcula, which shows the importance of predicting areas at risk of invasion to monitor the movement and establishment of fruit fly species in new regions, which is fundamental to area-wide integrated pest management programs.
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Affiliation(s)
- Adriane Vieira Souza
- Programa de Pós-Graduação em Genética e Biologia Molecular, Depto de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil.
| | - Elder Assis Miranda
- Programa de Pós-Graduação em Genética e Biologia Molecular, Depto de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
- Instituto Federal do Tocantins - IFTO - Porto Nacional, Tocantins, Brazil
| | - Joseane Fernanda Passos
- Programa de Pós-Graduação em Genética e Biologia Molecular, Depto de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - Elton Lucio Araujo
- Depto de Ciências Agronômicas e Florestais, Universidade Federal Rural do Semi-Árido, Mossoró, Rio Grande do Norte, Brazil
| | | | - Janisete Gomes Silva
- Programa de Pós-Graduação em Genética e Biologia Molecular, Depto de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
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Kim H, Kim S, Kim S, Lee Y, Lee HS, Lee SJ, Choi DS, Jeon J, Lee JH. Population Genetics for Inferring Introduction Sources of the Oriental Fruit Fly, Bactrocera dorsalis: A Test for Quarantine Use in Korea. INSECTS 2021; 12:851. [PMID: 34680620 PMCID: PMC8541597 DOI: 10.3390/insects12100851] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/16/2021] [Accepted: 09/17/2021] [Indexed: 11/16/2022]
Abstract
To infer the introduction sources of the oriental fruit fly, Bactrocera dorsalis, we used a mitochondrial marker to reconstruct the haplotype network and 15 microsatellite loci to reveal genetic structure and relationships between the geographically or temporally different collections from Asia. We performed Approximate Bayesian computations to infer a global origin and a source of the quarantine collections found in Korea. As a result, the 40 populations were divided into three groups, of which genetic similarity is not related to the geographic vicinity. Korean samples had a similar genetic structure to Taiwan and Thailand ones. Our results suggest that the place of origin of the B. dorsalis specimens found in Korea's border quarantine is likely to be Taiwan or Thailand. As the global origin of B. dorsalis, we estimated that Taiwan and Thailand were most likely the global origins of Southeast Asian populations by testing hypothetical scenarios by the approximate Bayesian computation analyses. Our results will allow easier identification of the source region of the forthcoming invasion of quarantined B. dorsalis specimens.
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Affiliation(s)
- Hyojoong Kim
- Animal Systematics Laboratory, Department of Biology, Kunsan National University, Gunsan 54150, Jeonbuk, Korea; (S.K.); (S.K.)
| | - Sohee Kim
- Animal Systematics Laboratory, Department of Biology, Kunsan National University, Gunsan 54150, Jeonbuk, Korea; (S.K.); (S.K.)
- Animal & Plant Quarantine Agency, Gimcheon 39660, Gyeongbuk, Korea; (S.-J.L.); (D.-S.C.); (J.J.); (J.-H.L.)
| | - Sangjin Kim
- Animal Systematics Laboratory, Department of Biology, Kunsan National University, Gunsan 54150, Jeonbuk, Korea; (S.K.); (S.K.)
| | - Yerim Lee
- Animal Systematics Laboratory, Department of Biology, Kunsan National University, Gunsan 54150, Jeonbuk, Korea; (S.K.); (S.K.)
| | - Heung-Sik Lee
- Animal & Plant Quarantine Agency, Gimcheon 39660, Gyeongbuk, Korea; (S.-J.L.); (D.-S.C.); (J.J.); (J.-H.L.)
| | - Seong-Jin Lee
- Animal & Plant Quarantine Agency, Gimcheon 39660, Gyeongbuk, Korea; (S.-J.L.); (D.-S.C.); (J.J.); (J.-H.L.)
| | - Deuk-Soo Choi
- Animal & Plant Quarantine Agency, Gimcheon 39660, Gyeongbuk, Korea; (S.-J.L.); (D.-S.C.); (J.J.); (J.-H.L.)
| | - Jaeyong Jeon
- Animal & Plant Quarantine Agency, Gimcheon 39660, Gyeongbuk, Korea; (S.-J.L.); (D.-S.C.); (J.J.); (J.-H.L.)
| | - Jong-Ho Lee
- Animal & Plant Quarantine Agency, Gimcheon 39660, Gyeongbuk, Korea; (S.-J.L.); (D.-S.C.); (J.J.); (J.-H.L.)
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Temperature-dependent phenology of the parasitoid Fopius arisanus on the host Bactrocera dorsalis. J Therm Biol 2021; 100:103031. [PMID: 34503779 DOI: 10.1016/j.jtherbio.2021.103031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 05/23/2021] [Accepted: 06/13/2021] [Indexed: 11/22/2022]
Abstract
Fopius arisanus (Sonan), an egg-pupal parasitoid of numerous fruit fly species, was recently introduced into Africa for the control of the Oriental fruit fly, Bactrocera dorsalis (Hendel). In this study, life-table data of F. arisanus were generated under laboratory conditions at six constant temperatures (15, 20, 25, 30, 28 and 35 °C; 75% RH, L12:D12 photoperiod) and under variable conditions in a screenhouse on B. dorsalis. Several non-linear functions were fitted to model species development, mortality, longevity and oviposition using the Insect Life Cycle Modeling (ILCYM) software. The established phenology models were stochastically simulated at variable temperatures to estimate the life table parameters. Fopius arisanus completed development from egg to adult at all the temperatures tested except at 35 °C. Mean developmental time from egg to adult was inversely proportional to the temperature. The minimum temperature threshold (Tmin) from egg to adult was 8.15 °C, while the maximum temperature threshold (Tmax) was estimated at 34.2 °C. The optimal temperature for immature stages survival was predicted for 20-30 °C. The optimum fecundity estimated was 251 eggs/female at 22 °C. Following the stochastic simulations under natural conditions of the selected agro-ecological zones, it appears that the Humid Forest with Bimodal Rainfall provides a suitable thermal condition for potential population growth of F. arisanus. The present study shows the importance of temperature on the demographic parameters of F. arisanus. Implications of present findings on the biological control of B. dorsalis under climate change scenarios is discussed.
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Ndlela S, Azrag AGA, Mohamed SA. Determination of temperature thresholds for the parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae), using life cycle simulation modeling: Implications for effective field releases in classical biological control of fruit flies. PLoS One 2021; 16:e0255582. [PMID: 34388152 PMCID: PMC8362971 DOI: 10.1371/journal.pone.0255582] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 07/19/2021] [Indexed: 11/18/2022] Open
Abstract
The braconid parasitoid Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae) is one of the most important natural enemies in classical biological control programs against tephritid fruit flies worldwide. In light of the spread of the invasive fruit fly species, Bactrocera dorsalis in Africa and beyond, there is a need to implement classical biological control. The current study aimed to determine temperature thresholds for D. longicaudata reared on B. dorsalis, using life cycle simulation modeling to guide informed parasitoid releases in Africa. Simulated parameters included thermal requirements, population growth parameters at different temperature requirements, suitable areas for the establishment, and the number of generations per year under projected climatic conditions. The lower thermal threshold for the development was estimated at 10.0°C, with a thermal constant (k) of 333.3-degree days, while the maximum temperature threshold was estimated at 33.69°C. Fecundity was highest at 25°C, with 177.3 eggs per female. Temperature significantly affected the population growth parameters of D. longicaudata, and the maximum value of the intrinsic rate of increase (rm) was 0.145 at 27°C. Results indicate that D. longicaudata could successfully establish in tropical and sub-tropical regions under current and future climatic conditions. However, a slight change in the suitable areas is expected by the year 2050 due to a slight and gradual rise in temperature. Our findings provide important information for further release of this parasitoid in Africa as well as designing pest management strategies to limit the spread and reduce the impact of fruit flies sustainably.
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Affiliation(s)
- Shepard Ndlela
- Plant Health Division, International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
- * E-mail: ,
| | - Abdelmutalab G. A. Azrag
- Plant Health Division, International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
- Department of Crop Protection, Faculty of Agricultural Sciences, University of Gezira, Wad Medani, Sudan
| | - Samira A. Mohamed
- Plant Health Division, International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
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Modelling the Potential Geographic Distribution of Two Trissolcus Species for the Brown Marmorated Stink Bug, Halyomorpha halys. INSECTS 2021; 12:insects12060491. [PMID: 34070564 PMCID: PMC8229174 DOI: 10.3390/insects12060491] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 11/17/2022]
Abstract
Simple Summary The brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), native to Asia, has been accidentally introduced to Europe and North America, where it has become a key pest by feeding on numerous important crops. Although H. halys has not yet established in Australia, there is a general consensus that this is only a matter of time, and thus, it is prudent to investigate management options. Previous studies have modelled the potential distribution of H. halys and one of its principal natural enemies, Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae). Here, we developed a similar model of the potential distribution of Trissolcus mitsukurii (Ashmead), which is a primary parasitoid of H. halys in Japan, and which was introduced to Australia in the 1960s to control another introduced pest. We used the three models to examine the overlap in the projected distributions of both T. mitsukurii and T. japonicus with H. halys, and to assess the potential for the two Trissolcus species to help mitigate the impacts of H. halys in its global adventive range. Abstract The brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), is native to northeast Asia. It was accidentally introduced to Europe and North America, where it has become a key pest, feeding on many important crops. Previous eco-climatic niche modelling indicates that H. halys could expand its distribution vastly, and numerous border interceptions of this pest in many countries, including Australia and New Zealand, indicate that it would be prudent to prepare for its eventual arrival. Similar niche modelling was used to assess the potential distribution of Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae), the key parasitoid of H. halys in China. Trissolcus mitsukurii (Ashmead) is one of the main parasitoids of H. halys in Japan. It is known to have existed in Australia since the early 20th century and was also specifically introduced to Australia in the 1960s, and it has now also invaded Italy. We used CLIMEX to model the climatic niche of T. mitsukurii to estimate its global potential distribution. We found that T. mitsukurii should be able to significantly expand its range globally, and that there is a significant degree of overlap in the projected ranges of T. mitsukurii, T. japonicus and H. halys. From a biological control perspective, this implies that the two Trissolcus species may be able to help mitigate the potential impacts of H. halys.
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Wang F, Wang D, Guo G, Zhang M, Lang J, Wei J. Potential Distributions of the Invasive Barnacle Scale Ceroplastes cirripediformis (Hemiptera: Coccidae) Under Climate Change and Implications for Its Management. JOURNAL OF ECONOMIC ENTOMOLOGY 2021; 114:82-89. [PMID: 33184624 DOI: 10.1093/jee/toaa245] [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: 06/08/2020] [Indexed: 06/11/2023]
Abstract
Ceroplastes cirripediformis Comstock is one of the most destructive invasive pests that have caused various negative impacts to agricultural, ornamental, and greenhouse plants. Since it is time- and labor-consuming to control C. cirripediformis, habitat evaluation of this pest may be the most cost-effective method for predicting its dispersal and avoiding its outbreaks. Here, we evaluated the effects of climatic variables on distribution patterns of C. cirripediformis and produced a global risk map for its outbreak under current and future climate scenarios using the Maximum Entropy (MaxEnt) model. Our results showed that mean temperature of driest quarter (Bio 9), precipitation of coldest quarter (Bio 19), precipitation of warmest quarter (Bio 18), and mean temperature of wettest quarter (Bio 8) were the main factors influencing the current modeled distribution of C. cirripediformis, respectively, contributing 41.9, 29.4, 18.8, and 7.9%. The models predicted that, globally, potential distribution of C. cirripediformis would be across most zoogeographical regions under both current and future climate scenarios. Moreover, in the future, both the total potential distribution region and its area of highly suitable habitat are expected to expand slightly in all representative concentration pathway scenarios. The information generated from this study will contribute to better identify the impacts of climate change upon C. cirripediformis's potential distribution while also providing a scientific basis for forecasting insect pest spread and outbreaks. Furthermore, this study serves an early warning for the regions of potential distribution, predicted as highly suitable habitats for this pest, which could promote its prevention and control.
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Affiliation(s)
- Fang Wang
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, P.R. China
| | - Duo Wang
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, P.R. China
| | - Ge Guo
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, P.R. China
| | - Meixia Zhang
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, P.R. China
| | - Jiayi Lang
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei, P.R. China
| | - Jiufeng Wei
- College of Plant Protection, Shanxi Agricultural University, Taigu, Shanxi, P.R. China
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Improving climate suitability for Bemisia tabaci in East Africa is correlated with increased prevalence of whiteflies and cassava diseases. Sci Rep 2020; 10:22049. [PMID: 33328547 PMCID: PMC7744558 DOI: 10.1038/s41598-020-79149-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 11/26/2020] [Indexed: 11/18/2022] Open
Abstract
Projected climate changes are thought to promote emerging infectious diseases, though to date, evidence linking climate changes and such diseases in plants has not been available. Cassava is perhaps the most important crop in Africa for smallholder farmers. Since the late 1990’s there have been reports from East and Central Africa of pandemics of begomoviruses in cassava linked to high abundances of whitefly species within the Bemisia tabaci complex. We used CLIMEX, a process-oriented climatic niche model, to explore if this pandemic was linked to recent historical climatic changes. The climatic niche model was corroborated with independent observed field abundance of B. tabaci in Uganda over a 13-year time-series, and with the probability of occurrence of B. tabaci over 2 years across the African study area. Throughout a 39-year climate time-series spanning the period during which the pandemics emerged, the modelled climatic conditions for B. tabaci improved significantly in the areas where the pandemics had been reported and were constant or decreased elsewhere. This is the first reported case where observed historical climate changes have been attributed to the increase in abundance of an insect pest, contributing to a crop disease pandemic.
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Stoeckli S, Felber R, Haye T. Current distribution and voltinism of the brown marmorated stink bug, Halyomorpha halys, in Switzerland and its response to climate change using a high-resolution CLIMEX model. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2020; 64:2019-2032. [PMID: 32860106 PMCID: PMC7658091 DOI: 10.1007/s00484-020-01992-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 08/06/2020] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
Climate change can alter the habitat suitability of invasive species and promote their establishment. The highly polyphagous brown marmorated stinkbug, Halyomorpha halys Stål (Hemiptera: Pentatomidae), is native to East Asia and invasive in Europe and North America, damaging a wide variety of fruit and vegetable crops. In Switzerland, crop damage and increasing populations have been observed since 2017 and related to increasing temperatures. We studied the climatic suitability, population growth, and the number of generations under present and future climate conditions for H. halys in Switzerland, using a modified version of the bioclimatic model package CLIMEX. To address the high topographic variability in Switzerland, model simulations were based on climate data of high spatial resolution (approx. 2 km), which significantly increased their explanatory power, and identified many more climatically suitable areas in comparison to previous models. The validation of the CLIMEX model using observational records collected in a citizen science initiative between 2004 and 2019 revealed that more than 15 years after its accidental introduction, H. halys has colonised nearly all bioclimatic suitable areas in Switzerland and there is limited potential for range expansion into new areas under present climate conditions. Simulations with climate change scenarios suggest an extensive range expansion into higher altitudes, an increase in generations per year, an earlier start of H. halys activity in spring and a prolonged period for nymphs to complete development in autumn. A permanent shift from one to two generations per year and the associated population growth of H. halys may result in increasing crop damages in Switzerland. These results highlight the need for monitoring the spread and population development in the north-western part of Switzerland and higher altitudes of the valleys of the south.
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Affiliation(s)
- Sibylle Stoeckli
- Research Institute of Organic Agriculture (FiBL), Ackerstrasse 113, P.O. Box 219, 5070 Frick, Switzerland
| | - Raphael Felber
- Agroscope, Reckenholzstrasse 191, 8046 Zurich, Switzerland
- Now at: Office for Environment, Canton of Zug, Aabachstrasse 5, 6300 Zug, Switzerland
| | - Tim Haye
- CABI, Rue des Grillons 1, 2800 Delémont, Switzerland
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Moquet L, Payet J, Glenac S, Delatte H. Niche shift of tephritid species after the Oriental fruit fly (
Bactrocera dorsalis
) invasion in La Réunion. DIVERS DISTRIB 2020. [DOI: 10.1111/ddi.13172] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Affiliation(s)
- Laura Moquet
- CIRAD UMR Peuplements Végétaux et Bioagresseurs en Milieu Tropical – Pôle de Protection des Plantes Saint Pierre La Réunion France
| | - Jim Payet
- CIRAD UMR Peuplements Végétaux et Bioagresseurs en Milieu Tropical – Pôle de Protection des Plantes Saint Pierre La Réunion France
| | - Serge Glenac
- CIRAD UMR Peuplements Végétaux et Bioagresseurs en Milieu Tropical – Pôle de Protection des Plantes Saint Pierre La Réunion France
| | - Hélène Delatte
- CIRAD, UMR Peuplements Végétaux et Bioagresseurs en Milieu Tropical – FOFIFA DRA Ambatobe Madagascar
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da Silva RS, Fidelis EG, Amaro G, Ramos RS, Junior PAS, Picanço MC. Climate-based seasonal dynamics of the invasive red palm mite Raoiella indica. PEST MANAGEMENT SCIENCE 2020; 76:3849-3856. [PMID: 32476234 DOI: 10.1002/ps.5936] [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: 03/05/2020] [Revised: 05/14/2020] [Accepted: 06/01/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Raoiella indica Hirst (Acari: Tenuipalpidae) is the most critical coconut and banana pest recently introduced in Brazil. Once the mite pests are introduced, it is essential to understand their dynamics in important crops under open-field climatic conditions to implement strategies for their management and determine the periods when species populations may increase in the field. Modelling tools have been used to determine the potential distribution of species and implications for the management of invasive species. Thus, our aim in this study was to determine the seasonal variation in R. indica and the influence of the monthly climate using CLIMEX modelling. We adjusted the CLIMEX model for R. indica based on distribution data, additional biological characteristics, and fluctuations in the R. indica population in a commercial coconut plantation. RESULTS The model for the current climate shows a good match between the ecoclimatic index and the global distribution of R. indica. The model results demonstrate that most states of Brazil and several regions worldwide include areas with highly suitable climatic conditions for R. indica. We observed variations in the density of R. indica in commercial coconut crops, with the highest incidence occurring during the first months of the year. CONCLUSION Our results showed different alterations in seasonal suitability for R. indica that may provide information for the implementation of methods for time management, such as strategies for sampling and control during periods with a high degree of suitability for R. indica. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Ricardo Siqueira da Silva
- Departamento de Agronomia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Brazil
| | - Elisângela Gomes Fidelis
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, Brazil
- Pesquisa, Embrapa Cerrrados, Brasília, Brazil
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Gichuhi J, Khamis F, Van den Berg J, Mohamed S, Ekesi S, Herren JK. Influence of inoculated gut bacteria on the development of Bactrocera dorsalis and on its susceptibility to the entomopathogenic fungus, Metarhizium anisopliae. BMC Microbiol 2020; 20:321. [PMID: 33087056 PMCID: PMC7579797 DOI: 10.1186/s12866-020-02015-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 10/15/2020] [Indexed: 12/20/2022] Open
Abstract
Background Symbiotic interactions between insects and bacteria have been associated with a vast variety of physiological, ecological and evolutionary consequences for the host. A wide range of bacterial communities have been found in association with the oriental fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae), an important pest of cultivated fruit in most regions of the world. We evaluated the diversity of gut bacteria in B. dorsalis specimens from several populations in Kenya and investigated the roles of individual bacterial isolates in the development of axenic (germ-free) B. dorsalis fly lines and their responses to the entomopathogenic fungus, Metarhizium anisopliae. Results We sequenced 16S rRNA to evaluate microbiomes and coupled this with bacterial culturing. Bacterial isolates were mono-associated with axenic B. dorsalis embryos. The shortest embryonic development period was recorded in flies with an intact gut microbiome while the longest period was recorded in axenic fly lines. Similarly, larval development was shortest in flies with an intact gut microbiome, in addition to flies inoculated with Providencia alcalifaciens. Adult B. dorsalis flies emerging from embryos that had been mono-associated with a strain of Lactococcus lactis had decreased survival when challenged with a standard dosage of M. anisopliae ICIPE69 conidia. However, there were no differences in survival between the germ-free lines and flies with an intact microbiome. Conclusions These findings will contribute to the selection of probiotics used in artificial diets for B. dorsalis rearing and the development of improved integrated pest management strategies based on entomopathogenic fungi. Supplementary information Supplementary information accompanies this paper at 10.1186/s12866-020-02015-y.
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Affiliation(s)
- Joseph Gichuhi
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
| | - Fathiya Khamis
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
| | - Johnnie Van den Berg
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Samira Mohamed
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
| | - Sunday Ekesi
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya
| | - Jeremy K Herren
- International Centre of Insect Physiology and Ecology (icipe), Nairobi, Kenya.
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Wang M, White N, Hanan J, He D, Wang E, Cribb B, Kriticos DJ, Paini D, Grimm V. Parameter estimation for functional-structural plant models when data are scarce: using multiple patterns for rejecting unsuitable parameter sets. ANNALS OF BOTANY 2020; 126:559-570. [PMID: 32002551 PMCID: PMC7489104 DOI: 10.1093/aob/mcaa016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 01/29/2020] [Indexed: 05/28/2023]
Abstract
BACKGROUND AND AIMS Functional-structural plant (FSP) models provide insights into the complex interactions between plant architecture and underlying developmental mechanisms. However, parameter estimation of FSP models remains challenging. We therefore used pattern-oriented modelling (POM) to test whether parameterization of FSP models can be made more efficient, systematic and powerful. With POM, a set of weak patterns is used to determine uncertain parameter values, instead of measuring them in experiments or observations, which often is infeasible. METHODS We used an existing FSP model of avocado (Persea americana 'Hass') and tested whether POM parameterization would converge to an existing manual parameterization. The model was run for 10 000 parameter sets and model outputs were compared with verification patterns. Each verification pattern served as a filter for rejecting unrealistic parameter sets. The model was then validated by running it with the surviving parameter sets that passed all filters and then comparing their pooled model outputs with additional validation patterns that were not used for parameterization. KEY RESULTS POM calibration led to 22 surviving parameter sets. Within these sets, most individual parameters varied over a large range. One of the resulting sets was similar to the manually parameterized set. Using the entire suite of surviving parameter sets, the model successfully predicted all validation patterns. However, two of the surviving parameter sets could not make the model predict all validation patterns. CONCLUSIONS Our findings suggest strong interactions among model parameters and their corresponding processes, respectively. Using all surviving parameter sets takes these interactions into account fully, thereby improving model performance regarding validation and model output uncertainty. We conclude that POM calibration allows FSP models to be developed in a timely manner without having to rely on field or laboratory experiments, or on cumbersome manual parameterization. POM also increases the predictive power of FSP models.
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Affiliation(s)
- Ming Wang
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Health & Biosecurity, Canberra, Australia
- The University of Queensland, Queensland Alliance for Agriculture and Food Innovation (QAAFI), Centre for Horticultural Science, Brisbane, Australia
| | - Neil White
- The University of Queensland, Queensland Alliance for Agriculture and Food Innovation (QAAFI), Centre for Horticultural Science, Brisbane, Australia
- Department of Agriculture and Fisheries, Toowoomba, Australia
| | - Jim Hanan
- The University of Queensland, Queensland Alliance for Agriculture and Food Innovation (QAAFI), Centre for Horticultural Science, Brisbane, Australia
| | - Di He
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Agriculture & Food, Canberra, Australia
| | - Enli Wang
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Agriculture & Food, Canberra, Australia
| | - Bronwen Cribb
- The University of Queensland, Centre for Microscopy and Microanalysis, Brisbane, Australia
- The University of Queensland, School of Biological Sciences, Brisbane, Australia
| | - Darren J Kriticos
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Health & Biosecurity, Canberra, Australia
- The University of Queensland, School of Biological Sciences, Brisbane, Australia
| | - Dean Paini
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Health & Biosecurity, Canberra, Australia
| | - Volker Grimm
- Helmholtz Centre for Environmental Research-UFZ, Department of Ecological Modelling, Permoserstr, Germany
- University of Potsdam, Department of Plant Ecology and Nature Conservation, Am Mühlenberg, Germany
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Pieterse W, Manrakhan A, Terblanche JS, Addison P. Comparative demography of Bactrocera dorsalis (Hendel) and Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) on deciduous fruit. BULLETIN OF ENTOMOLOGICAL RESEARCH 2020; 110:185-194. [PMID: 31559937 DOI: 10.1017/s0007485319000592] [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] [Indexed: 06/10/2023]
Abstract
Bactrocera dorsalis (Hendel) and Ceratitis capitata (Wiedemann) are highly polyphagous fruit fly species and important pests of commercial fruit in regions of the world where they are present. In South Africa, B. dorsalis is now established in the north and northeastern parts of the country. B. dorsalis is currently absent in other parts of the country including the Western Cape Province which is an important area for the production of deciduous fruit. C. capitata is widespread in South Africa and is the dominant pest of deciduous fruit. The demographic parameters of B. dorsalis and C. capitata on four deciduous fruit types Prunus persica (L.) Batsch, Prunus domestica L., Malus domestica Borkh. and Pyrus communis L. were studied to aid in predicting the potential population establishment and growth of B. dorsalis in a deciduous fruit growing environment. All deciduous fruit types tested were suitable for population persistence of both B. dorsalis and C. capitata. Development was fastest and survival highest on nectarine for both species. B. dorsalis adults generally lived longer than those of C. capitata, irrespective of the fruit types that they developed from. B. dorsalis had a higher net reproductive rate (Ro) on all deciduous fruit tested compared to C. capitata. However, the intrinsic rate of population increase was estimated to be higher for C. capitata than for B. dorsalis on all fruit types tested primarily due to C. capitata's faster generation time. Provided abiotic conditions are optimal, B. dorsalis would be able to establish and grow in deciduous fruit growing areas.
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Affiliation(s)
- Welma Pieterse
- Department of Conservation Ecology & Entomology, Faculty of AgriSciences, Stellenbosch University, Stellenbosch, South Africa
- Department of Agriculture, Forestry and Fisheries, Plant Quarantine Station, Stellenbosch7600, South Africa
| | - Aruna Manrakhan
- Citrus Research International, PO Box 28, Nelspruit1200, South Africa
| | - John S Terblanche
- Department of Conservation Ecology & Entomology, Faculty of AgriSciences, Centre for Invasion Biology, Stellenbosch University, Stellenbosch, South Africa
| | - Pia Addison
- Department of Conservation Ecology & Entomology, Faculty of AgriSciences, Stellenbosch University, Stellenbosch, South Africa
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Zou Y, Ge X, Guo S, Zhou Y, Wang T, Zong S. Impacts of climate change and host plant availability on the global distribution of Brontispa longissima (Coleoptera: Chrysomelidae). PEST MANAGEMENT SCIENCE 2020; 76:244-256. [PMID: 31148381 DOI: 10.1002/ps.5503] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 05/23/2019] [Accepted: 05/28/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND The coconut hispine beetle Brontispa longissima Gestro (Coleoptera: Chrysomelidae) is one of the most serious pests of the coconut palm, Cocos nucifera L. (Arecales: Arecaceae) and other palms. The invasion of B. longissima causes major economic and ecological losses worldwide. In this study, the impacts of climate change on the risk of spread were evaluated. CLIMEX was used to project its global potential distribution based on historical climate data (1987-2016) and simulated future climate data (2071-2100). RESULTS The distribution of B. longissima included each continent under historical and future climate conditions. However, climate suitability was predicted to decrease in most tropical and subtropical regions under a climate change scenario. Temperature was a more important determinant of the climatic suitability of the pest than relative humidity or precipitation. The availability of host plants (Arecaceae) only had a slight impact on climate suitability in some regions. CONCLUSION The projected potential distribution of B. longissima will help to determine the impacts of climate change and will provide supportive information for the development of management strategies to reduce future economic and ecological losses. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Ya Zou
- Key Laboratory of Beijing for the Control of Forest Pests, Beijing Forestry University, Beijing, China
| | - Xuezhen Ge
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada
| | - Siwei Guo
- Key Laboratory of Beijing for the Control of Forest Pests, Beijing Forestry University, Beijing, China
| | - Yuting Zhou
- Key Laboratory of Beijing for the Control of Forest Pests, Beijing Forestry University, Beijing, China
| | - Tao Wang
- Mentougou Forestry Station, Beijing, China
| | - Shixiang Zong
- Key Laboratory of Beijing for the Control of Forest Pests, Beijing Forestry University, Beijing, China
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Nanga Nanga S, Hanna R, Gnanvossou D, Fotso Kuate A, Fiaboe KKM, Djieto-Lordon C. Fruit Preference, Parasitism, and Offspring Fitness of Fopius arisanus (Hymenoptera: Braconidae) Exposed to Bactrocera dorsalis' (Diptera: Tephritidae) Infested Fruit Species. ENVIRONMENTAL ENTOMOLOGY 2019; 48:1286-1296. [PMID: 31586387 DOI: 10.1093/ee/nvz114] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Indexed: 06/10/2023]
Abstract
Fopius arisanus (Sonan) (Hymenoptera: Braconidae) is a koinobiont solitary parasitoid of various fruit flies, particularly those in the genus Bactrocera. Researchers introduced F. arisanus into Africa for the biological control of Bactrocera dorsalis (Hendel) (Diptera: Tephritidae), a pest of a wide range of fruit trees and vegetables. However, the suitability of host fruit species as egg-laying substrates for parasitoid development remains poorly investigated in tropical Africa. The present study examines the preference and performance of F. arisanus on B. dorsalis reared on eleven fruit species through laboratory choice-test trials. We assessed the oviposition activity, parasitism rate, developmental time, and offspring fitness of F. arisanus on nine cultivated and two wild host fruits species. Oviposition attempts were higher on Psidium guajava (L.) (Myrtales: Myrtaceae) and Mangifera indica (L.) (Sapindales: Anacardiaceae) than on the other host fruits tested. The wasp parasitized host eggs in P. guajava in no-choice experiments. Psidium guajava, Irvingia wombulu (Vermoesen) (Malpighiales: Irvingiaceae), and Irvingia gabonensis (Aubry_Lecomte) Baill (Malpighiales: Irvingiaceae) were suitable for parasitism in choice tests. Of all host fruits tested, the body and hind tibia lengths of both parasitoid sexes emerging from M. indica were longer than on the others. The female ovipositor was long on Annona squamosa (L.) (Magnoliales: annonaceae) and short on Eribotrya japonica ([Thunb.] Lindl.; Rosales: Rosaceae). We obtained the longest preimaginal developmental time for both sexes on E. japonica and the shortest for females and males on Carica papaya (L.) (Brassicales: Caricaceae). These results demonstrate the ability of some tested fruit species to serve for the permanent establishment of F. arisanus in the field.
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Affiliation(s)
- S Nanga Nanga
- International Institute of Tropical Agriculture (IITA), IPM unit, Messa Yaoundé, Cameroon
- Department of Animal Biology and Physiology, Faculty of Science, University of Yaounde I, Yaoundé, Cameroon
| | - R Hanna
- International Institute of Tropical Agriculture (IITA), IPM unit, Messa Yaoundé, Cameroon
| | | | - A Fotso Kuate
- International Institute of Tropical Agriculture (IITA), IPM unit, Messa Yaoundé, Cameroon
| | - K K M Fiaboe
- International Institute of Tropical Agriculture (IITA), IPM unit, Messa Yaoundé, Cameroon
| | - C Djieto-Lordon
- Department of Animal Biology and Physiology, Faculty of Science, University of Yaounde I, Yaoundé, Cameroon
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Motswagole R, Gotcha N, Nyamukondiwa C. Thermal Biology and Seasonal Population Abundance of Bactrocera dorsalis Hendel (Diptera: Tephritidae): Implications on Pest Management. INTERNATIONAL JOURNAL OF INSECT SCIENCE 2019; 11:1179543319863417. [PMID: 31488955 PMCID: PMC6710710 DOI: 10.1177/1179543319863417] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 06/24/2019] [Indexed: 06/10/2023]
Abstract
Since the first detection of Bactrocera dorsalis in Botswana in 2010, the establishment, spread, and response to prevailing Botswana microclimates under rapidly changing environments remain unknown. This study investigated the presence, seasonal population abundance, and thermal biology of B. dorsalis in Botswana. We measured B. dorsalis thermal tolerance vis critical thermal limits (CTLs) and lethal temperature assays (LTAs) to understand how temperature largely impacts on fitness and hence invasive potential. Seasonal monitoring results indicated B. dorsalis establishment in the Chobe district (its first area of detection). Trap catches showed continuous adult flies' presence all year round and high average monthly trap catches as compared with other districts. Furthermore, B. dorsalis was detected south of Botswana, including Kgatleng, Kweneng, South-east, and Southern districts. Critical thermal maxima (CTmax) to activity for adults and larvae were 46.16°C and 45.23°C, whereas critical thermal minima (CTmin) to activity for adults and larvae were 9.1°C and 7.3°C, respectively. Moreover, we found an improved CTmin for larvae at a slower ramping rate, indicating potential rapid cold hardening. The lower lethal temperature (LLT) and upper lethal temperature (ULT) assays revealed a reduction in survival at all the developmental stages as severity and duration of both temperature extremes increased. Microclimatic temperatures recorded in Botswana showed that environmental temperatures fall within the thermal breath of B. dorsalis activity measured here, indicating a potential conducive climate niche for the insect pest across the country, albeit other factors, e.g., host availability, play a significant role. These results therefore suggest that Botswana microclimatic temperatures aided B. dorsalis activity and invasion pathway are thus significant in mapping invasions and pest risk analysis, and may also aid in designing pest management strategies.
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Affiliation(s)
| | | | - Casper Nyamukondiwa
- Casper Nyamukondiwa, Department of Biological Sciences & Biotechnology, Botswana International University of Science & Technology, Private Bag 16, Palapye, Botswana.
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Gichuhi J, Khamis FM, Van den Berg J, Ekesi S, Herren JK. Unexpected Diversity of Wolbachia Associated with Bactrocera dorsalis (Diptera: Tephritidae) in Africa. INSECTS 2019; 10:E155. [PMID: 31159272 PMCID: PMC6627279 DOI: 10.3390/insects10060155] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 05/17/2019] [Accepted: 05/20/2019] [Indexed: 11/17/2022]
Abstract
Bactrocera dorsalis (Hendel) is an important pest of fruit-bearing plants in many countries worldwide. In Africa, this pest has spread rapidly and has become widely established since the first invasion report in 2003. Wolbachia is a vertically transmitted endosymbiont that can significantly influence aspects of the biology and, in particular, the reproduction of its host. In this study, we screened B. dorsalis specimens collected from several locations in Africa between 2005 and 2017 for Wolbachia using a PCR-based assay to target the Wolbachia surface protein wsp. Of the 357 individuals tested, 10 were positive for Wolbachia using the wsp assay. We identified four strains of Wolbachia infecting two B. dorsalis mitochondrial haplotypes. We found no strict association between the infecting strain and host haplotype, with one strain being present in two different host haplotypes. All the detected strains belonged to Super Group B Wolbachia and did not match any strains reported previously in B. dorsalis in Asia. These findings indicate that diverse Wolbachia infections are present in invasive populations of B. dorsalis.
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Affiliation(s)
- Joseph Gichuhi
- International Centre of Insect Physiology and Ecology (icipe), Kasarani, Nairobi 00100, Kenya.
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South Africa.
| | - Fathiya M Khamis
- International Centre of Insect Physiology and Ecology (icipe), Kasarani, Nairobi 00100, Kenya.
| | - Johnnie Van den Berg
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South Africa.
| | - Sunday Ekesi
- International Centre of Insect Physiology and Ecology (icipe), Kasarani, Nairobi 00100, Kenya.
| | - Jeremy K Herren
- International Centre of Insect Physiology and Ecology (icipe), Kasarani, Nairobi 00100, Kenya.
- MRC-University of Glasgow Centre for Virus Research, Henry Wellcome Building, Glasgow G61 1QH, UK.
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Projecting the Potential Global Distribution of Carpomya vesuviana (Diptera: Tephritidae), Considering Climate Change and Irrigation Patterns. FORESTS 2019. [DOI: 10.3390/f10040355] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The ber fruit fly Carpomya vesuviana Costa (Diptera: Tephritidae) is the most destructive pests of Ziziphus spp. Carpomya vesuviana infestation causes great economic losses. We re-parameterized an existing CLIMEX model, and used the updated CliMond 30′ gridded resolution datasets within CLIMEX for the periods 1987–2016 and 2071–2100, representing historical and future climates, respectively, to predict the potential global distribution of the pest. Under the historical climate scenario, C. vesuviana had a wide climatically suitable distribution worldwide, from approximately 46° S to 50° N. Future climate change expanded the upper boundary of the potential distribution northward, and predicted that the pest would distribute approximately from 50° S to 60° N. Temperature was the primary determinant of the potential distribution of the pest among all driving variables. Irrigation was associated with a slight improvement in the climate favorability for the pest in some areas, including south-western North America, northern and southern Africa, and most of Oceania. The projections clarify the impacts of climate change on the potential global distribution of C. vesuviana, and are instructive for quarantine and management agencies for reducing economic damage caused by the fly and preventing expansion of C. vesuviana due to climate change.
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Ramos RS, Kumar L, Shabani F, da Silva RS, de Araújo TA, Picanço MC. Climate model for seasonal variation in Bemisia tabaci using CLIMEX in tomato crops. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2019; 63:281-291. [PMID: 30680622 DOI: 10.1007/s00484-018-01661-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 11/24/2018] [Accepted: 12/08/2018] [Indexed: 06/09/2023]
Abstract
The whitefly, Bemisia tabaci, is considered one of the most important pests for tomato Solanum lycopersicum. The population density of this pest varies throughout the year in response to seasonal variation. Studies of seasonality are important to understand the ecological dynamics and insect population in crops and help to identify which seasons have the best climatic conditions for the growth and development of this insect species. In this research, we used CLIMEX to estimate the seasonal abundance of a species in relation to climate over time and species geographical distribution. Therefore, this research is designed to infer the mechanisms affecting population processes, rather than simply provide an empirical description of field observations based on matching patterns of meteorological data. In this research, we identified monthly suitability for Bemisia tabaci, with the climate models, for 12 commercial tomato crop locations through CLIMEX (version 4.0). We observed that B. tabaci displays seasonality with increased abundance in tomato crops during March, April, May, June, October and November (first year) and during March, April, May, September and October (second year) in all monitored areas. During this period, our model demonstrated a strong agreement between B. tabaci density and CLIMEX weekly growth index (GIw), which indicates significant reliability of our model results. Our results may be useful to design sampling and control strategies, in periods and locations when there is high suitability for B. tabaci.
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Affiliation(s)
- Rodrigo Soares Ramos
- Departamento de Entomologia, Universidade Federal de Viçosa (UFV), Viçosa, MG, 36570-900, Brazil.
- Ecosystem Management, School of Environmental and Rural Science, University of New England (UNE), Armidale, NSW, 2351, Australia.
| | - Lalit Kumar
- Ecosystem Management, School of Environmental and Rural Science, University of New England (UNE), Armidale, NSW, 2351, Australia
| | - Farzin Shabani
- Ecosystem Management, School of Environmental and Rural Science, University of New England (UNE), Armidale, NSW, 2351, Australia
- Biological Sciences, Flinders University, GPO Box 2100, Adelaide, South Australia, 5001, Australia
| | | | - Tamíris Alves de Araújo
- Departamento de Entomologia, Universidade Federal de Viçosa (UFV), Viçosa, MG, 36570-900, Brazil
| | - Marcelo Coutinho Picanço
- Departamento de Entomologia, Universidade Federal de Viçosa (UFV), Viçosa, MG, 36570-900, Brazil
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Incorporating temperature and precipitation extremes into process-based models of African lepidoptera changes the predicted distribution under climate change. Ecol Modell 2019. [DOI: 10.1016/j.ecolmodel.2018.12.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Nugnes F, Russo E, Viggiani G, Bernardo U. First Record of an Invasive Fruit Fly Belonging to Bactrocera dorsalis Complex (Diptera: Tephritidae) in Europe. INSECTS 2018; 9:E182. [PMID: 30513969 PMCID: PMC6316371 DOI: 10.3390/insects9040182] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 11/27/2018] [Accepted: 11/29/2018] [Indexed: 11/16/2022]
Abstract
Emerging pests are increasingly threatening fruit orchard health across the Mediterranean area. Tephritidae, representing serious threats for Europe, are numerous, and the fruit flies Bactrocera zonata and those belonging to Bactrocera dorsalis complex are among the most alarming species. These species are highly polyphagous and B. zonata has already spread to some Mediterranean countries. Due to these ongoing threats, in the Campania Region (southern Italy), a survey with traps and infested fruits analysis was performed with the aim of detecting the presence of species of Bactrocera dorsalis complex. In two mixed fruit-trees fields, some adults belonging to a species of Bactrocera were captured in traps baited with the highly attractive male lure (methyl eugenol). They were distinguished from similar-looking Bactrocera spp. by morphological and molecular comparative analyses. Considering the existing morphological keys, specimens were tentatively identified as B. dorsalis but molecular characterization with COI split them into two clades. Some specimens were grouped with B. dorsalis similar to B. kandiensis and B. kandiensis and others in a clade including B. dorsalis and B. invadens (syn. B. dorsalis). ITS1 sequences instead confirmed morphological identification. The integrative approach allowed identifying all the specimens collected as belonging to the B. dorsalis complex. This finding represents the first field interception in Europe of a member of one of the most dangerous groups of fruit flies.
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Affiliation(s)
- Francesco Nugnes
- CNR, Institute for Sustainable Plant Protection, 80055 Portici, Italy.
| | - Elia Russo
- CNR, Institute for Sustainable Plant Protection, 80055 Portici, Italy.
| | - Gennaro Viggiani
- Department of Agriculture, University of Naples "Federico II", 80055 Portici, Italy.
| | - Umberto Bernardo
- CNR, Institute for Sustainable Plant Protection, 80055 Portici, Italy.
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Qin Y, Krosch MN, Schutze MK, Zhang Y, Wang X, Prabhakar CS, Susanto A, Hee AKW, Ekesi S, Badji K, Khan M, Wu J, Wang Q, Yan G, Zhu L, Zhao Z, Liu L, Clarke AR, Li Z. Population structure of a global agricultural invasive pest, Bactrocera dorsalis (Diptera: Tephritidae). Evol Appl 2018; 11:1990-2003. [PMID: 30459843 PMCID: PMC6231469 DOI: 10.1111/eva.12701] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 07/08/2018] [Accepted: 08/07/2018] [Indexed: 01/20/2023] Open
Abstract
Bactrocera dorsalis, the Oriental fruit fly, is one of the world's most destructive agricultural insect pests and a major impediment to international fresh commodity trade. The genetic structuring of the species across its entire geographic range has never been undertaken, because under a former taxonomy B. dorsalis was divided into four distinct taxonomic entities, each with their own, largely non-overlapping, distributions. Based on the extensive sampling of six a priori groups from 63 locations, genetic and geometric morphometric datasets were generated to detect macrogeographic population structure, and to determine prior and current invasion pathways of this species. Weak population structure and high genetic diversity were detected among Asian populations. Invasive populations in Africa and Hawaii are inferred to be the result of separate, single invasions from South Asia, while South Asia is also the likely source of other Asian populations. The current northward invasion of B. dorsalis into Central China is the result of multiple, repeated dispersal events, most likely related to fruit trade. Results are discussed in the context of global quarantine, trade, and management of this pest. The recent expansion of the fly into temperate China, with very few associated genetic changes, clearly demonstrates the threat posed by this pest to ecologically similar areas in Europe and North America.
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Affiliation(s)
- Yu‐jia Qin
- Department of EntomologyCollege of Plant ProtectionChina Agricultural UniversityBeijingChina
| | - Matthew N. Krosch
- School of Earth, Environmental and Biological SciencesQueensland University of Technology (QUT)BrisbaneQueenslandAustralia
| | - Mark K. Schutze
- School of Earth, Environmental and Biological SciencesQueensland University of Technology (QUT)BrisbaneQueenslandAustralia
| | - Yue Zhang
- Department of EntomologyCollege of Plant ProtectionChina Agricultural UniversityBeijingChina
| | - Xiao‐xue Wang
- Department of EntomologyCollege of Plant ProtectionChina Agricultural UniversityBeijingChina
| | - Chandra S. Prabhakar
- School of Earth, Environmental and Biological SciencesQueensland University of Technology (QUT)BrisbaneQueenslandAustralia
- Department of EntomologyBihar Agricultural UniversityBhagalpur BiharIndia
| | - Agus Susanto
- Faculty of AgriculturePadjadjaran UniversityJatinangorIndonesia
| | - Alvin K. W. Hee
- Department of Biology, Faculty of ScienceUniversiti Putra MalaysiaSelangorMalaysia
| | - Sunday Ekesi
- International Centre of Insect Physiology and EcologyNairobiKenya
| | - Kemo Badji
- Fruit Fly Control Project‐ECOWAS Responsable Composante Surveillance. Projet Lutte contre les Mouches des Fruits‐CEDEAO CRSABamakoMali
| | - Mahfuza Khan
- Insect Biotechnology DivisionInstitute of Food and Radiation BiologyAtomic Energy Research EstablishmentSavar, DhakaBangladesh
| | - Jia‐jiao Wu
- Guangdong Inspection and Quarantine Technology CenterGuangzhouChina
| | - Qiao‐ling Wang
- Department of EntomologyCollege of Plant ProtectionChina Agricultural UniversityBeijingChina
| | - Ge Yan
- Department of EntomologyCollege of Plant ProtectionChina Agricultural UniversityBeijingChina
| | - Li‐huan Zhu
- Department of EntomologyCollege of Plant ProtectionChina Agricultural UniversityBeijingChina
| | - Zi‐hua Zhao
- Department of EntomologyCollege of Plant ProtectionChina Agricultural UniversityBeijingChina
| | - Li‐jun Liu
- Department of EntomologyCollege of Plant ProtectionChina Agricultural UniversityBeijingChina
| | - Anthony R. Clarke
- School of Earth, Environmental and Biological SciencesQueensland University of Technology (QUT)BrisbaneQueenslandAustralia
| | - Zhi‐hong Li
- Department of EntomologyCollege of Plant ProtectionChina Agricultural UniversityBeijingChina
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Global establishment threat from a major forest pest via international shipping: Lymantria dispar. Sci Rep 2018; 8:13723. [PMID: 30213967 PMCID: PMC6137135 DOI: 10.1038/s41598-018-31871-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 08/19/2018] [Indexed: 11/08/2022] Open
Abstract
The global shipping network is widely recognised as a pathway for vectoring invasive species. One species of particular concern is Lymantria dispar (gypsy moth). Two subspecies, L. d. asiatica and L. d. japonica (herein referred to as Asian Gypsy Moth - AGM) are of considerable concern as ships arriving to a number of countries have been found carrying AGM egg masses. However, ships carrying AGM eggs can only threaten a country at ports located in a climatically suitable region. We present a CLIMEX model of climate suitability and combine this with international shipping to estimate the global threat from AGM. We find that for the USA more than half of international ships (approximately 18,000 ships) arrive to climatically suitable ports. Other countries with a large number of ships arriving to ports with suitable climates include Canada and Brazil. This is the first global analysis of the invasion threat from AGM, and we recommend countries focus AGM-inspection programs towards ships arriving at ports found within climatically suitable regions.
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The use of geometric morphometric analysis to illustrate the shape change induced by different fruit hosts on the wing shape of Bactrocera dorsalis and Ceratitis capitata (Diptera: Tephritidae). ZOOL ANZ 2017. [DOI: 10.1016/j.jcz.2017.08.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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da Silva RS, Kumar L, Shabani F, da Silva EM, da Silva Galdino TV, Picanço MC. Spatio-temporal dynamic climate model for Neoleucinodes elegantalis using CLIMEX. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2017; 61:785-795. [PMID: 27738767 DOI: 10.1007/s00484-016-1256-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 08/25/2016] [Accepted: 09/27/2016] [Indexed: 06/06/2023]
Abstract
Seasonal variations are important components in understanding the ecology of insect population of crops. Ecological studies through modeling may be a useful tool for enhancing knowledge of seasonal patterns of insects on field crops as well as seasonal patterns of favorable climatic conditions for species. Recently CLIMEX, a semi-mechanistic niche model, was upgraded and enhanced to consider spatio-temporal dynamics of climate suitability through time. In this study, attempts were made to determine monthly variations of climate suitability for Neoleucinodes elegantalis (Guenée) (Lepidoptera: Crambidae) in five commercial tomato crop localities through the latest version of CLIMEX. We observed that N. elegantalis displays seasonality with increased abundance in tomato crops during summer and autumn, corresponding to the first 6 months of the year in monitored areas in this study. Our model demonstrated a strong accord between the CLIMEX weekly growth index (GIw) and the density of N. elegantalis for this period, thus indicating a greater confidence in our model results. Our model shows a seasonal variability of climatic suitability for N. elegantalis and provides useful information for initiating methods for timely management, such as sampling strategies and control, during periods of high degree of suitability for N. elegantalis. In this study, we ensure that the simulation results are valid through our verification using field data.
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Affiliation(s)
- Ricardo Siqueira da Silva
- Departamento de Fitotecnia, Universidade Federal de Viçosa, Viçosa, MG, 36571-000, Brazil.
- Ecosystem Management, School of Environmental and Rural Science, University of New England, Armidale, NSW, 2351, Australia.
| | - Lalit Kumar
- Ecosystem Management, School of Environmental and Rural Science, University of New England, Armidale, NSW, 2351, Australia
| | - Farzin Shabani
- Ecosystem Management, School of Environmental and Rural Science, University of New England, Armidale, NSW, 2351, Australia
| | - Ezio Marques da Silva
- Instituto de Ciências Agrárias, Universidade Federal de Viçosa, Campus de Rio Paranaíba, MG, 38810-000, Brazil
| | | | - Marcelo Coutinho Picanço
- Departamento de Fitotecnia, Universidade Federal de Viçosa, Viçosa, MG, 36571-000, Brazil
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, MG, 36571-000, Brazil
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Pieterse W, Terblanche JS, Addison P. Do thermal tolerances and rapid thermal responses contribute to the invasion potential of Bactrocera dorsalis (Diptera: Tephritidae)? JOURNAL OF INSECT PHYSIOLOGY 2017; 98:1-6. [PMID: 27845146 DOI: 10.1016/j.jinsphys.2016.11.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 10/12/2016] [Accepted: 11/11/2016] [Indexed: 06/06/2023]
Abstract
Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) has shown remarkable range expansion over the past 10years and invaded several new continents including Africa. Here we report results of a detailed assessment of acute high and low temperature survival ability and the plasticity thereof, to test the hypothesis that traits of the thermal niche have contributed to the species' invasion ability. We also assess life-stage-related variation of thermal tolerances to determine potential stage-related environmental sensitivity. The temperatures at which c. 20% of the population survived of B. dorsalis were determined to be -6.5°C and 42.7°C, respectively, when using 2h exposures. Further, four life stages of B. dorsalis (egg, 3rd instar larvae, pupae and adults) were exposed to high and low discriminating temperatures to compare their thermal survival rates. The egg stage was found to be the most resistant life stage to both high and low temperatures, since 44±2.3% survived the low and 60±4.2% survived the high discriminating temperature treatments respectively. Finally, the potential for adult hardening responses to mediate tolerance of extremes was also considered using a diverse range of acute conditions (using 2h exposures to 15°C, 10°C and 5°C and 30°C, 35°C, 37°C and 39°C as hardening temperatures, and some treatments with and without recovery periods between hardening and discriminating temperature treatment). These showed that although some significant hardening responses could be detected in certain treatments (e.g. after exposure to 37°C and 39°C), the magnitude of this plasticity was generally low compared to two other wide-spread and more geographically-range-restricted con-familial species, Ceratitis capitata and C. rosa. In other words, Bactrocera dorsalis adults were unable to rapidly heat- or cold-harden to the same extent as the other Ceratitis species examined to date. These results suggest a narrower thermal niche in B. dorsalis compared to these Ceratitis species - in both basal and plastic terms - and suggests that its geographic distribution might be more restricted in consequence.
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Affiliation(s)
- Welma Pieterse
- Department of Conservation Ecology & Entomology, Faculty of AgriSciences, Stellenbosch University, South Africa
| | - John S Terblanche
- Centre for Invasion Biology, Department of Conservation Ecology & Entomology, Faculty of AgriSciences, Stellenbosch University, South Africa.
| | - Pia Addison
- Department of Conservation Ecology & Entomology, Faculty of AgriSciences, Stellenbosch University, South Africa
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Boontop Y, Schutze MK, Clarke AR, Cameron SL, Krosch MN. Signatures of invasion: using an integrative approach to infer the spread of melon fly, Zeugodacus cucurbitae (Diptera: Tephritidae), across Southeast Asia and the West Pacific. Biol Invasions 2017. [DOI: 10.1007/s10530-017-1382-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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42
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Dohino T, Hallman GJ, Grout TG, Clarke AR, Follett PA, Cugala DR, Minh Tu D, Murdita W, Hernandez E, Pereira R, Myers SW. Phytosanitary Treatments Against Bactrocera dorsalis (Diptera: Tephritidae): Current Situation and Future Prospects. JOURNAL OF ECONOMIC ENTOMOLOGY 2017; 110:67-79. [PMID: 28028169 DOI: 10.1093/jee/tow247] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) is arguably the most important tephritid attacking fruits after Ceratitis capitata (Wiedemann) (Diptera: Tephritidae). In 2003 it was found in Africa and quickly spread to most of the sub-Saharan part of the continent, destroying fruits and creating regulatory barriers to their export. The insect is causing new nutritional and economic losses across Africa, as well as the losses it has caused for decades in infested areas of Asia, New Guinea, and Hawaii. This new panorama represents a challenge for fruit exportation from Africa. Phytosanitary treatments are required to export quarantined commodities out of infested areas to areas where the pest does not exist and could become established. This paper describes current phytosanitary treatments against B. dorsalis and their use throughout the world, the development of new treatments based on existing research, and recommendations for further research to provide phytosanitary solutions to the problem.
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Affiliation(s)
- Toshiyuki Dohino
- Yokohama Plant Protection Station, Ministry of Agriculture, Forestry, and Fisheries, Yokohama, Japan
| | - Guy J Hallman
- Insect Pest Control Section, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, International Atomic Energy Agency, Vienna, Austria
| | | | - Anthony R Clarke
- School of Earth, Environmental, and Biological Sciences, Faculty of Science and Technology, Queensland University of Technology (QUT), Brisbane, Qld, Australia
| | - Peter A Follett
- USDA-ARS, Daniel K. Inouye U. S. Pacific Basin Agricultural Research Center, Hilo, HI, USA
| | - Domingos R Cugala
- Faculty of Agronomy and Forest Engineering, Universidade Eduardo Mondlane, Maputo, Mozambique
| | - Duong Minh Tu
- Plant Quarantine Diagnostic Center, Plant Protection Department, Ministry of Agriculture and Rural Development, Hanoi, Viet Nam
| | - Wayan Murdita
- Pest Forecasting Institute, Ministry of Agriculture, Karawang, Indonesia
| | | | - Rui Pereira
- Insect Pest Control Section, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, International Atomic Energy Agency, Vienna, Austria
| | - Scott W Myers
- USDA-APHIS Center for Plant Health Science and Technology, Otis Laboratory, Buzzards Bay, MA, USA
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43
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Mze Hassani I, Raveloson-Ravaomanarivo LH, Delatte H, Chiroleu F, Allibert A, Nouhou S, Quilici S, Duyck PF. Invasion by Bactrocera dorsalis and niche partitioning among tephritid species in Comoros. BULLETIN OF ENTOMOLOGICAL RESEARCH 2016; 106:749-758. [PMID: 27312045 DOI: 10.1017/s0007485316000456] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ten economically important species belonging to the Tephritidae have been recorded in Union of the Comoros (an island nation off the coast of East Africa). Little is known about the distribution of these species and how they are affected by climatic factors in the Comoros archipelago. The main objectives of this study were to characterize: (i) the population dynamics of tephritid fruit flies in relation to season and host fruit availability and (ii) the geographic distribution of tephritids in relation to temperature and rainfall. The study was conducted during 2 years at 11 sites on three islands (Grande Comore, Anjouan, and Mohéli) in the archipelago. The site elevations ranged from 55 to 885 m a.s.l. At each site, flies were collected weekly in eight traps (four different lures, each replicated twice). Fruit phenology was also recorded weekly. The dominant tephritid species detected was the invasive Bactrocera dorsalis Hendel followed by Ceratitis capitata Wiedemann. Tephritid species were generally more abundant during the hot and rainy seasons than during the cold and dry seasons. Bactrocera dorsalis numbers were higher on Grande Comore than on the two other islands. On Anjouan and Mohéli, B. dorsalis numbers were very low in 2014 but sharply increased in 2015, suggesting a recent invasion of these islands. Abundances were significantly related to the fruiting of mango, strawberry guava, and guava for B. dorsalis and to the fruiting of mango, guava, and mandarin for C. capitata. Bactrocera dorsalis was more abundant in hot and humid low-altitude areas, while C. capitata was more abundant in dry medium-altitude areas, suggesting the occurrence of climatic niche partitioning between the two species.
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Affiliation(s)
- I Mze Hassani
- CIRAD,UMR PVBMT,F-97410 Saint-Pierre,La Réunion,France
| | - L H Raveloson-Ravaomanarivo
- Departement d'Entomologie,Faculté des Sciences,Université d'Antananarivo,B.P.: 906 Antananarivo, 101,Madagascar
| | - H Delatte
- CIRAD,UMR PVBMT,F-97410 Saint-Pierre,La Réunion,France
| | - F Chiroleu
- CIRAD,UMR PVBMT,F-97410 Saint-Pierre,La Réunion,France
| | - A Allibert
- CIRAD,UMR PVBMT,F-97410 Saint-Pierre,La Réunion,France
| | - S Nouhou
- Institut National de Recherche pour l'Agriculture, la Pêche et l'Environnement (INRAPE) Moroni Union des Comores,Mdé Ex-CEFADER,B.P: 289 Moroni,Union des Comores
| | - S Quilici
- CIRAD,UMR PVBMT,F-97410 Saint-Pierre,La Réunion,France
| | - P F Duyck
- CIRAD,UMR PVBMT,F-97410 Saint-Pierre,La Réunion,France
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