1
|
Wernicke M, Egartner A, Blümel S, Moraiti CA, Papadopoulos NT. Overwintering potential of the Mediterranean fruit fly (Diptera: Tephritidae) in Austria. JOURNAL OF ECONOMIC ENTOMOLOGY 2024:toae180. [PMID: 39121382 DOI: 10.1093/jee/toae180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 06/26/2024] [Accepted: 07/29/2024] [Indexed: 08/11/2024]
Abstract
The Mediterranean fruit fly (medfly), Ceratitis capitata (Wiedemann), one of the most important invasive pests of fresh fruits and vegetables from the coastal Mediterranean habitats, is expanding its current geographic distribution to cooler more temperate areas of Europe. Every year since 2010 the fly is detected in the area of Vienna, Austria. However, whether it can establish permanent populations is not known. In this current paper, the capacity of C. capitata to overwinter in Vienna, Austria (48.1° northern latitude) was studied over 2 consecutive winter seasons (2020-2022). Overwintering trials with different life stages (larva, pupa, and adult) of C. capitata were performed in the open field and in the protected environment of a basement without a heating system. Control flies were kept under constant conditions in a climate chamber (25 °C, 60% RH, 14:10 L:D). Our data showed that no life stage of the Mediterranean fruit fly was able to survive the Austrian winter in the open field. However, in the protected environment C. capitata outlived the winter months in all studied life stages at least in small numbers and several surviving females were able to lay eggs at the time of the following fruiting season. Implications of these findings for the ongoing geographic range expansion of the pest in temperate European countries are discussed.
Collapse
Affiliation(s)
- Matthias Wernicke
- Austrian Agency for Health and Food Safety (AGES), Institute for Sustainable Plant Production (NPP), Vienna, Austria
| | - Alois Egartner
- Austrian Agency for Health and Food Safety (AGES), Institute for Sustainable Plant Production (NPP), Vienna, Austria
| | - Sylvia Blümel
- Austrian Agency for Health and Food Safety (AGES), Institute for Sustainable Plant Production (NPP), Vienna, Austria
| | - Cleopatra A Moraiti
- Department of Agriculture, Crop Production and Rural Environment, Laboratory of Entomology and Agricultural Zoology, University of Thessaly, Volos, Greece
| | - Nikos T Papadopoulos
- Department of Agriculture, Crop Production and Rural Environment, Laboratory of Entomology and Agricultural Zoology, University of Thessaly, Volos, Greece
| |
Collapse
|
2
|
Rodovitis VG, Verykouki E, Zarpas KD, Papanastasiou SA, Moraiti CA, Patronis N, Papadopoulos NT. Mediterranean fruit fly population phenological patterns are strongly affected by elevation and host presence. Sci Rep 2024; 14:6010. [PMID: 38472384 DOI: 10.1038/s41598-024-56714-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 03/09/2024] [Indexed: 03/14/2024] Open
Abstract
The Mediterranean fruit fly (medfly) (Ceratitis capitata, Diptera: Tephritidae), is an extremely polyphagous pest that threatens the fruit production and trading industry worldwide. Monitoring C. capitata populations and analysing its dynamics and phenology is considered of outmost importance for designing and implementing sound management approaches. The aim of this study was to investigate the factors regulating the population dynamics of the C. capitata in a coastal and semi-mountainous area. We focused on effects of topography (e.g. elevation), host presence and seasonal patterns of ripening on the phenological patterns considering data collected in 2008. The experimental area is characterized by mixed fruit orchards, and Mediterranean climate with mild winters. Two trap types were used for population monitoring. The female targeted McPhail type and the male targeted Jackson type. Traps were placed in farms located at different elevations and landscape morphology (coastal and semi-mountainous areas). The main crops included citrus, apples, peaches, plums, pears, figs, quinces and apricots. Adult captures were first recorded in May, peaked in mid-summer and mid-autumn and almost ceased at the end of the season (January 2008). Captures in the coastal areas preceded that of highlands by 15 days. Most of the adults detected during the fruit ripening of late stone fruit cultivars (first peak) and citrus (second peak). The probability of capturing the first adults preceded almost three weeks the peak of adult captures either considering the elevation or host focus analyses. The results provide valuable information on the seasonal population trend of C. capitata in mixed fruit Mediterranean orchards and can support the set-up of IPM systems in areas with various landscapes and different hosts throughout the fruit growing season.
Collapse
Affiliation(s)
- Vasilis G Rodovitis
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - Eleni Verykouki
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - Kostas D Zarpas
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - Stella A Papanastasiou
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - Cleopatra A Moraiti
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - Nikos Patronis
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - Nikos T Papadopoulos
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos, Greece.
| |
Collapse
|
3
|
Szyniszewska AM, Bieszczak H, Kozyra K, Papadopoulos NT, De Meyer M, Nowosad J, Ota N, Kriticos DJ. Evidence that recent climatic changes have expanded the potential geographical range of the Mediterranean fruit fly. Sci Rep 2024; 14:2515. [PMID: 38291088 PMCID: PMC10828498 DOI: 10.1038/s41598-024-52861-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 01/24/2024] [Indexed: 02/01/2024] Open
Abstract
The species distributions migration poleward and into higher altitudes in a warming climate is especially concerning for economically important insect pest species, as their introduction can potentially occur in places previously considered unsuitable for year-round survival. We explore the expansion of the climatically suitable areas for a horticultural pest, the Mediterranean fruit fly (medfly) Ceratitis capitata (Diptera, Tephritidae), with an emphasis on Europe and California. We reviewed and refined a published CLIMEX model for C. capitata, taking into consideration new records in marginal locations, with a particular focus on Europe. To assess the model fit and to aid in interpreting the meaning of the new European distribution records, we used a time series climate dataset to explore the temporal patterns of climate suitability for C. capitata from 1970 to 2019. At selected bellwether sites in Europe, we found statistically significant trends in increasing climate suitability, as well as a substantial northward expansion in the modelled potential range. In California, we also found a significant trend of northward and altitudinal expansion of areas suitable for C. capitata establishment. These results provide further evidence of climate change impacts on species distributions and the need for innovative responses to increased invasion threats.
Collapse
Affiliation(s)
| | | | | | - Nikos T Papadopoulos
- Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | | | - Jakub Nowosad
- Institute of Geoecology and Geoinformation, Adam Mickiewicz University, Poznań, Poland
| | | | - Darren J Kriticos
- Cervantes Agritech Pty Limited, Canberra, Australia.
- Macquarie University, Sydney, Australia.
| |
Collapse
|
4
|
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.
Collapse
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;
| |
Collapse
|
5
|
Davydova S, Liu J, Kandul NP, Braswell WE, Akbari OS, Meccariello A. Next-generation genetic sexing strain establishment in the agricultural pest Ceratitis capitata. Sci Rep 2023; 13:19866. [PMID: 37964160 PMCID: PMC10646097 DOI: 10.1038/s41598-023-47276-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 11/11/2023] [Indexed: 11/16/2023] Open
Abstract
Tephritid fruit fly pests pose an increasing threat to the agricultural industry due to their global dispersion and a highly invasive nature. Here we showcase the feasibility of an early-detection SEPARATOR sex sorting approach through using the non-model Tephritid pest, Ceratitis capitata. This system relies on female-only fluorescent marker expression, accomplished through the use of a sex-specific intron of the highly-conserved transformer gene from C. capitata and Anastrepha ludens. The herein characterized strains have 100% desired phenotype outcomes, allowing accurate male-female separation during early development. Overall, we describe an antibiotic and temperature-independent sex-sorting system in C. capitata, which, moving forward, may be implemented in other non-model Tephritid pest species. This strategy can facilitate the establishment of genetic sexing systems with endogenous elements exclusively, which, on a wider scale, can improve pest population control strategies like sterile insect technique.
Collapse
Affiliation(s)
- Serafima Davydova
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
| | - Junru Liu
- Department of Cell and Developmental Biology, School of Biological Sciences, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Nikolay P Kandul
- Department of Cell and Developmental Biology, School of Biological Sciences, University of California, San Diego, La Jolla, CA, 92093, USA
| | - W Evan Braswell
- USDA APHIS PPQ Science and Technology Insect Management and Molecular Diagnostic Laboratory, 22675 North Moorefield Road, Edinburg, TX, 78541, USA
| | - Omar S Akbari
- Department of Cell and Developmental Biology, School of Biological Sciences, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Angela Meccariello
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK.
| |
Collapse
|
6
|
Malod K, Bali EMD, Gledel C, Moquet L, Bierman A, Bataka E, Weldon CW, Karsten M, Delatte H, Papadopoulos NT, Terblanche JS. Tethered-flight performance of thermally-acclimated pest fruit flies (Diptera: Tephritidae) suggests that heat waves may promote the spread of Bactrocera species. PEST MANAGEMENT SCIENCE 2023; 79:4153-4161. [PMID: 37309691 DOI: 10.1002/ps.7611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/06/2023] [Accepted: 06/13/2023] [Indexed: 06/14/2023]
Abstract
BACKGROUND Thermal history may induce phenotypic plasticity in traits that affect performance and fitness. One type of plastic response triggered by thermal history is acclimation. Because flight is linked to movement in the landscape, trapping and detection rates, and underpins the success of pest management tactics, it is particularly important to understand how thermal history may affect pest insect flight performance. We investigated the tethered-flight performance of Ceratitis capitata, Bactrocera dorsalis and Bactrocera zonata (Diptera: Tephritidae), acclimated for 48 h at 20, 25 or 30 °C and tested at 25 °C. We recorded the total distance, average speed, number of flight events and time spent flying during 2-h tests. We also characterized morphometric traits (body mass, wing shape and wing loading) that can affect flight performance. RESULTS The main factor affecting most flight traits was body mass. The heaviest species, B. dorsalis, flew further, was faster and stopped less often in comparison with the two other species. Bactrocera species exhibited faster and longer flight when compared with C. capitata, which may be associated with the shape of their wings. Moreover, thermal acclimation had sex- and species-specific effects on flight performance. Flies acclimated at 20 °C stopped more often, spent less time flying and, ultimately, covered shorter distances. CONCLUSION Flight performance of B. dorsalis is greater than that of B. zonata and C. capitata. The effects of thermal acclimation are species-specific. Warmer acclimation temperatures may allow pest fruit flies to disperse further and faster. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
Collapse
Affiliation(s)
- Kevin Malod
- Department of Conservation Ecology and Entomology, Faculty of AgriSciences, Stellenbosch University, Stellenbosch, South Africa
| | - Eleftheria-Maria D Bali
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | | | | | - Anandi Bierman
- Department of Conservation Ecology and Entomology, Faculty of AgriSciences, Stellenbosch University, Stellenbosch, South Africa
| | - Evmorfia Bataka
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - Christopher W Weldon
- Department of Zoology and Entomology, University of Pretoria, Hatfield, South Africa
| | - Minette Karsten
- Department of Conservation Ecology and Entomology, Faculty of AgriSciences, Stellenbosch University, Stellenbosch, South Africa
| | | | - Nikos T Papadopoulos
- Laboratory of Entomology and Agricultural Zoology, Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - John S Terblanche
- Department of Conservation Ecology and Entomology, Faculty of AgriSciences, Stellenbosch University, Stellenbosch, South Africa
| |
Collapse
|
7
|
Papadopoulos AG, Koskinioti P, Zarpas KD, Papadopoulos NT. Differential Cold Tolerance on Immature Stages of Geographically Divergent Ceratitis capitata Populations. BIOLOGY 2023; 12:1379. [PMID: 37997978 PMCID: PMC10668952 DOI: 10.3390/biology12111379] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/25/2023]
Abstract
Cold tolerance of adult medflies has been extensively studied but the effect of subfreezing temperatures on the immature stages remains poorly investigated, especially as far as different populations are regarded. In this study, we estimated the acute cold stress response of three geographically divergent Mediterranean fruit fly populations originating from Greece (Crete, Volos) and Croatia (Dubrovnik) by exposing immature stages (eggs, larvae, pupae) to subfreezing temperatures. We first determined the LT50 for each immature stage following one hour of exposure to different temperatures. Then eggs, larvae and pupae of the different populations were exposed to their respective LT50 for one hour (LT50 = -11 °C, LT50 = -4.4 °C, LT50 = -5 °C for eggs, larvae and pupae, respectively). Our results demonstrate that populations responded differently depending on their developmental stage. The population of Dubrovnik was the most cold-susceptible at the egg stage, whereas in that of Crete it was at the larval and pupal stage. The population of Volos was the most cold-tolerant at all developmental stages. The egg stage was the most cold-tolerant, followed by pupae and finally the 3rd instar wandering larvae. This study contributes towards understanding the cold stress response of this serious pest and provides data for important parameters that determine its successful establishment to unfavorable environments with an emphasis on range expansion to the northern, more temperate regions of Europe.
Collapse
Affiliation(s)
| | | | | | - Nikos T. Papadopoulos
- Department of Agriculture, Crop Production and Rural Environment, School of Agricultural Sciences, University of Thessaly, 38446 Volos, Greece; (A.G.P.); (P.K.); (K.D.Z.)
| |
Collapse
|
8
|
da Silva Santana G, Ronchi-Teles B, dos Santos CM, Souza PGC, Farnezi PKB, de Assis Paes VL, Soares MA, da Silva RS. Risk analysis for Anastrepha suspensa (Diptera: Tephritidae) and potential areas for its biological control with Diachasmimorpha longicaudata (Hymenoptera: Braconidae) in the Americas. Heliyon 2023; 9:e18701. [PMID: 37609418 PMCID: PMC10440466 DOI: 10.1016/j.heliyon.2023.e18701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 07/23/2023] [Accepted: 07/25/2023] [Indexed: 08/24/2023] Open
Abstract
The Caribbean fruit fly Anastrepha suspensa (Diptera: Tephritidae) is a polyphagous pest causing economic losses in Central America, the Caribbean and South Florida. The parasitoid wasp Diachasmimorpha longicaudata (Hymenoptera: Braconidae) is the main parasitoid of A. suspensa in biological control programs. In this study, by modeling with CLIMEX software, climatically suitable areas were projected according to historical climate data. Areas with overlapping optimal climatic suitability for the joint establishment of the pest and parasitoid were mapped, indicating large areas with host presence in North, Central, and South America, with cold stress being the main climatic factor limiting distribution for both species. Tropical regions have the most potential for invasion, with optimal suitability in many areas. Through the projected distributions, this study can target quarantine strategies in areas most susceptible to invasion and establishment of the pest in each country. In addition, classical biological control with the parasitoid in areas with climatic suitability is also recommended.
Collapse
Affiliation(s)
- Geovani da Silva Santana
- Instituto Nacional de Pesquisa da Amazônia, Av. André Araújo, 2936, Petrópolis, Manaus, AM, 69067-375, Brazil
| | - Beatriz Ronchi-Teles
- Instituto Nacional de Pesquisa da Amazônia, Av. André Araújo, 2936, Petrópolis, Manaus, AM, 69067-375, Brazil
| | - Cícero Manoel dos Santos
- Universidade Federal do Pará R. Cel. José Porfírio, 030 - Recreio, Altamira, PA, 68371-030, Brazil
| | - Philipe Guilherme Corcino Souza
- Universidade Federal dos Vales de Jequitinhonha e Mucuri. Rodovia MGT 367 – Km 583, nº 5000 - Alto da Jacuba, Diamantina, MG, 39100-000, Brazil
| | - Priscila Kelly Barroso Farnezi
- Universidade Federal dos Vales de Jequitinhonha e Mucuri. Rodovia MGT 367 – Km 583, nº 5000 - Alto da Jacuba, Diamantina, MG, 39100-000, Brazil
| | | | - Marcus Alvarenga Soares
- Universidade Federal dos Vales de Jequitinhonha e Mucuri. Rodovia MGT 367 – Km 583, nº 5000 - Alto da Jacuba, Diamantina, MG, 39100-000, Brazil
| | - Ricardo Siqueira da Silva
- Universidade Federal dos Vales de Jequitinhonha e Mucuri. Rodovia MGT 367 – Km 583, nº 5000 - Alto da Jacuba, Diamantina, MG, 39100-000, Brazil
| |
Collapse
|
9
|
Pullock DA, Malod K, Manrakhan A, Weldon CW. Larval and adult diet affect phenotypic plasticity in thermal tolerance of the marula fly, Ceratitis cosyra (Walker) (Diptera: Tephritidae). FRONTIERS IN INSECT SCIENCE 2023; 3:1122161. [PMID: 38469504 PMCID: PMC10926529 DOI: 10.3389/finsc.2023.1122161] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/07/2023] [Indexed: 03/13/2024]
Abstract
Introduction Temperature fluctuations are important for the distribution and survival of insects. Rapid hardening, a type of phenotypic plasticity, is an adaptation that can help individuals better tolerate lethal temperatures because of earlier exposure to a sublethal but stressful temperature. Nutrition and sex are also known to influence a species ability to tolerate thermal stress. This study determined the effects of larval diet, adult diet, sex and hardening on the thermal tolerance of Ceratitis cosyra (Walker) (Diptera: Tephritidae) at lower and upper lethal temperatures. Methods Larvae were raised on either an 8% torula yeast (high) or a 1% torula yeast (low) larval diet and then introduced to one of three dietary regimes as adults for thermal tolerance and hardening assays: no adult diet, sugar only, or sugar and hydrolysed yeast diet. Flies of known weight were then either heat- or cold-hardened for 2 hours before being exposed to a potentially lethal high or low temperature, respectively. Results Both nutrition and hardening as well as their interaction affected C. cosyra tolerance of stressful temperatures. However, this interaction was dependent on the type of stress, with nutrient restriction and possible adult dietary compensation resulting in improved cold temperature resistance only. Discussion The ability of the insect to both compensate for a low protein larval diet and undergo rapid cold hardening after a brief exposure to sublethal cold temperatures even when both the larva and the subsequent adult fed on low protein diets indicates that C. cosyra have a better chance of survival in environments with extreme temperature variability, particularly at low temperatures. However, there appears to be limitations to the ability of C. cosyra to cold harden and the species may be more at risk from long term chronic effects than from any exposure to acute thermal stress.
Collapse
Affiliation(s)
- Dylan A. Pullock
- Department of Zoology and Entomology, University of Pretoria, Pretoria, South Africa
| | - Kévin Malod
- Department of Zoology and Entomology, University of Pretoria, Pretoria, South Africa
| | - Aruna Manrakhan
- Citrus Research International, Mbombela, South Africa
- Department of Conservation Ecology and Entomology, Faculty of AgriSciences, Stellenbosch University, Stellenbosch, South Africa
| | - Christopher W. Weldon
- Department of Zoology and Entomology, University of Pretoria, Pretoria, South Africa
| |
Collapse
|
10
|
Régnier B, Legrand J, Calatayud PA, Rebaudo F. Developmental Differentiations of Major Maize Stemborers Due to Global Warming in Temperate and Tropical Climates. INSECTS 2023; 14:51. [PMID: 36661979 PMCID: PMC9866401 DOI: 10.3390/insects14010051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/18/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
While many insects are in decline due to global warming, the effect of rising temperatures on crop insect pests is uncertain. A capacity to understand future changes in crop pest populations remains critical to ensure food security. Using temperature-dependent mathematical models of the development of four maize stemborers in temperate and tropical regions, we evaluated the potential impacts of different climate change scenarios on development time. While recognizing the limitations of the temperature-dependent development rate approach, we found that global warming could either be beneficial or detrimental to pest development, depending on the optimal temperature for the development of the species and scenarios of climate change. Expected responses range from null development to 1.5 times faster development than expected today. These results suggest that in the medium term, the studied species could benefit from global warming with an accelerated development, while in the long term, their development could either be delayed or accelerated, which may impact their dynamics with implications on maize cultivation.
Collapse
Affiliation(s)
- Baptiste Régnier
- UMR Évolution, Génomes, Comportement et Écologie, IRD, CNRS, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
| | - Judith Legrand
- UMR Génétique Quantitative et Évolution—Le Moulon, Université Paris-Saclay, INRAE, CNRS, AgroParisTech, 91190 Gif-sur-Yvette, France
| | - Paul-André Calatayud
- UMR Évolution, Génomes, Comportement et Écologie, IRD, CNRS, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
| | - François Rebaudo
- UMR Évolution, Génomes, Comportement et Écologie, IRD, CNRS, Université Paris-Saclay, 91190 Gif-sur-Yvette, France
| |
Collapse
|
11
|
Colacci M, Trematerra P, Sciarretta A. Evaluation of Trap Devices for Mass Trapping of Ceratitis capitata (Diptera: Tephritidae) Populations. INSECTS 2022; 13:941. [PMID: 36292889 PMCID: PMC9604364 DOI: 10.3390/insects13100941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/06/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
The Mediterranean fruit fly (medfly), Ceratitis capitata, is a key pest of fruit crops in a wide range of climatic zone. Its economic importance is increasing due to its invasion and establishment in new geographical areas caused by global warming. Generally, the management of medfly infestation has been carried out with the use of synthetic pyrethroids and phosphorganic insecticides. Other containment approaches include attract-and-kill, biological control, and the sterile insect technique. The mass trapping technique can be considered an eco-friendly method to use in combination with other control systems. The present study reported the trapping effectiveness of commercially available devices (Decis Trap, Tephri Trap Ecological, and Conetrap) baited with different types of female attractants (Econex Trypack and Biodelear) under different thermal conditions. The performance of trapping systems was evaluated in semi-field cages. Our results showed that the combination of Conetrap with Biodelear was not proven effective, while the Tephri Trap baited with Trypack or Biodelear and the Decis Trap reported the same performance in capturing females and could be used for medfly mass trapping.
Collapse
|