scholarly journals The First Record of the Invasive Mosquito Species Aedes Albopictus in Chisinau, Republic of Moldova, 2020

2021 ◽  
Author(s):  
Tatiana Sulesco ◽  
Galina Busmachiu ◽  
Unchana Lange ◽  
Jonas Schmidt-Chanasit ◽  
Renke Lühken
Keyword(s):  
Aedes Albopictus ◽  
Mosquito Species ◽  
First Record ◽  
Border Crossing ◽  
Molecular Barcoding ◽  
Republic Of Moldova ◽  
International Airport ◽  
Action Project ◽  
Invasive Mosquito ◽  
The Republic

Abstract BackgroundIn Europe, Ae. albopictus is an important vector of chikungunya virus, Dirofilaria nematodes and was involved in local autochthonous circulation of dengue virus and Zika virus. Due to the ongoing spread, a targeted field surveillance at potential points-of-entries for Aedes invasive mosquitoes was initiated for the Republic of Moldova in 2020 as part of the transboundary “Aedes Invasive Mosquito COST Action project”. MethodsIn 2020, ovitraps were positioned at each of three locations: the border crossing to Romania in Leuseni (Hancesti region), Chisinau International Airport and Chisinau Botanical Garden.ResultsA total of 188 Aedes spp. eggs were collected at the Chisinau International Airport between August and September 2020. Twenty-three adults reared in the laboratory were identified morphologically as Aedes albopictus (Skuse, 1895) and twelve selected specimens were confirmed by molecular barcoding of the cytochrome oxidase subunit I gene region. In addition, one adult female of Ae. albopictus was caught at the same site with a manual aspirator from a human.ConclusionsThis is the first documented report of Ae. albopictus in the Republic of Moldova. The presence of immature and adult stages indicates the local reproduction of the species in the country. Therefore, it is crucial to extend and strengthen surveillance of the invasive Aedes mosquitoes to prevent Ae. albopictus and other exotic mosquito species from establishing in the Republic of Moldova.

scholarly journals The first record of the invasive mosquito species Aedes albopictus in Chişinӑu, Republic of Moldova, 2020

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Tatiana Șuleșco ◽  
Galina Bușmachiu ◽  
Unchana Lange ◽  
Jonas Schmidt-Chanasit ◽  
Renke Lühken
Keyword(s):  
Aedes Albopictus ◽  
Mosquito Species ◽  
First Record ◽  
Botanical Garden ◽  
Border Crossing ◽  
Molecular Barcoding ◽  
Republic Of Moldova ◽  
International Airport ◽  
Action Project ◽  
The Republic

Abstract Background In Europe, Aedes albopictus is an important vector of chikungunya virus and Dirofilaria nematodes and has been involved in local autochthonous circulation of dengue and Zika viruses. Due to the ongoing spread, targeted field surveillance at potential points of entry of invasive Aedes mosquitoes was initiated by the Republic of Moldova in 2020 as part of the transboundary “Invasive Aedes Mosquitoes COST-Action project.” Methods In 2020, ovitraps were positioned at each of three locations: the border crossing to Romania in Leuşeni (Hancesti region), Chişinӑu International Airport and Chişinӑu Botanical Garden. Results A total of 188 Aedes spp. eggs were collected at the Chişinӑu International Airport between August and September 2020. Twenty-three adults reared in the laboratory were identified morphologically as Ae. albopictus (Skuse, 1895), and 12 selected specimens were confirmed by molecular barcoding of the cytochrome oxidase subunit I gene region. In addition, one adult Ae. albopictus female at the same site was caught with a manual aspirator. Conclusions This is the first documented report of Ae. albopictus in the Republic of Moldova. The presence of immature and adult stages indicates the local reproduction of the species in the country. Therefore, it is crucial to extend and strengthen surveillance of the invasive Aedes mosquitoes to prevent Ae. albopictus and other exotic mosquito species from becoming established in the Republic of Moldova. Graphical abstract

scholarly journals Effects of Selection to Diflubenzuron and Bacillus thuringiensis Var. Israelensis on the Overwintering Successes of Aedes albopictus (Diptera: Culicidae)

Insects ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 822
Author(s):  
Charalampos S. Ioannou ◽  
Christos Hadjichristodoulou ◽  
Varvara A. Mouchtouri ◽  
Nikos T. Papadopoulos
Keyword(s):  
Bacillus Thuringiensis ◽  
Aedes Albopictus ◽  
Selection Process ◽  
Mosquito Species ◽  
Fold Increase ◽  
Development Of Resistance ◽  
Control Programmes ◽  
Invasive Mosquito ◽  
In The Wild ◽  
Successive Generations

Aedes albopictus is an invasive mosquito species responsible for local transmission of chikungunya and dengue viruses in Europe. In the absence of available treatments, insecticides-based control remains one of the most important viable strategies to prevent emerging problems. Diflubenzuron (DFB) and Bacillus thuringiensis var. israelensis (Bti) are among the most commonly used larvicides for Ae. albopictus control with consequent concerns for the potential development of resistance. Studies on the resistance emergence in Ae. albopictus and its persistence in the wild to both DFB and Bti are essential for the efficient and sustainable planning of the control programmes. In this context, larvae from a recently laboratory established population were subjected to increasing selective pressure for nine successive generations using both DFB and Bti. The resistance levels and the overwintering success of the selected populations relative to control (colonies that received no selection) were determined. Results revealed an 8.5- and 1.6-fold increase on the resistance levels following selection with DFB and Bti, respectively. The selection process to both larvicides had no apparent impacts on the overwintering capability relative to control, suggesting the successful persistence of the selected individuals in the wild on an annual base.

Practical management plan for invasive mosquito species in Europe: I. Asian tiger mosquito (Aedes albopictus)

2020 ◽  
Vol 35 ◽  
pp. 101691 ◽  
Author(s):  
Romeo Bellini ◽  
Antonios Michaelakis ◽  
Dušan Petrić ◽  
Francis Schaffner ◽  
Bulent Alten ◽  
...  
Keyword(s):  
Aedes Albopictus ◽  
Mosquito Species ◽  
Management Plan ◽  
Asian Tiger Mosquito ◽  
Invasive Mosquito Species ◽  
Practical Management ◽  
Asian Tiger ◽  
Invasive Mosquito ◽  
Tiger Mosquito

scholarly journals A LAMP-based colorimetric assay to expedite field surveillance of the invasive mosquito species Aedes aegypti and Aedes albopictus

2020 ◽  
Vol 14 (3) ◽  
pp. e0008130 ◽  
Author(s):  
Bixing Huang ◽  
Brian L. Montgomery ◽  
Rebecca Adamczyk ◽  
Gerhard Ehlers ◽  
Andrew F. van den Hurk ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Colorimetric Assay ◽  
Mosquito Species ◽  
Invasive Mosquito Species ◽  
Invasive Mosquito

Detection of the invasive mosquito species Aedes albopictus in southern England

2017 ◽  
Vol 17 (2) ◽  
pp. 140 ◽  
Author(s):  
Jolyon M Medlock ◽  
Alexander GC Vaux ◽  
Benjamin Cull ◽  
Francis Schaffner ◽  
Emma Gillingham ◽  
...  
Keyword(s):  
Aedes Albopictus ◽  
Mosquito Species ◽  
Southern England ◽  
Invasive Mosquito Species ◽  
Invasive Mosquito

The first study on bacterial flora of pest beetles Sciaphobus squalidus, Tatianaerhynchites aequatus and Byctiscus betulae in the Republic of Moldova

Biologia ◽  
2014 ◽  
Vol 69 (5) ◽  
Author(s):  
Natalia Munteanu ◽  
Mehtap Danismazoglu ◽  
Anna Moldovan ◽  
Ion Toderas ◽  
Remziye Nalçacioğlu ◽  
...  
Keyword(s):  
Bacterial Flora ◽  
First Record ◽  
Species Level ◽  
Agricultural System ◽  
Bacterial Isolates ◽  
Republic Of Moldova ◽  
Bacterial Agent ◽  
Novel Approaches ◽  
The Republic ◽  
Agent Development

AbstractThe present study was conducted to identify the microbial flora of pest weevils Sciaphobus squalidus (Gyll.), Tatianaerhynchites aequatus (L.) and Byctiscus betulae L., which may provide novel approaches for insect biocontrol. According to morphological, physiological, biochemical and molecular properties thirteen bacteria were revealed and characterized. Ten of these bacteria were identified at the species level and the rest at the genus level. Isolates were identified as Staphyloccocus haemolyticus (Ta5), Bacillus cereus (Ss1), Pseudomonas moraviensis (Ss4), Pseudomonas fluorescens (Ss2), Pantoea agglomerans (Ss3, Bb3), Klebsiella pneumoniae (Ta1, Ta3, and Ta4), Erwinia billingiae (Ta2) and Erwinia spp. (Bb1, Bb2, Bb4). This is the first record of bacterial isolates (Ss4, Ta2 and Ta5) from any insect. The pathogenicity of bacteria was tested against adults of S. squalidus, T. aequatus and B. betulae and three of them showed insecticidal activity. The highest activity, 93% had B. cereus on S. squalidus and 90% on B. betulae within five days. The maximum activities of other two isolates Ss2 and Ss4 were determined as 73% and 46% against S. squalidus. Our data can offer useful information for future investigations on bacterial agent development and implementation as insecticides in agricultural system.

scholarly journals From a Long-distance Threat to the Invasion Front: Invasive Aedes Mosquito Species in Belgium Between 2007 and 2020

2021 ◽  
Author(s):  
Isra Deblauwe ◽  
Katrien De Wolf ◽  
Jacobus De Witte ◽  
Anna Schneider ◽  
Ingrid Verlé ◽  
...  
Keyword(s):  
Aedes Albopictus ◽  
Mosquito Species ◽  
Aedes Mosquito ◽  
Long Distance ◽  
Invasion Front ◽  
Management Actions ◽  
Invasive Mosquito ◽  
And Control ◽  
Control Management

Abstract Background: Invasive mosquito species (IMS) and their associated mosquito-borne diseases are emerging in Europe. In Belgium, the first detection of Aedes albopictus occurred in 2000 and of Aedes japonicus in 2002. Early detection and control of these IMS at points of entry (PoE’s) are of paramount importance to slow down any possible establishment. This paper gives an account of the IMS surveillance in Belgium between 2007 and 2020 and reviews the introductions and establishments recorded in that period.Methods: In total 52 PoE’s were monitored at least once for the presence of IMS between 2007 and 2020. These included used tyre and lucky bamboo import companies, airports, ports, parking lots along highways, shelters for imported cutting plants, wholesale markets, industrial areas, recycling areas, and cemeteries and an allotment garden at the country border with colonised areas. In general, monitoring was performed between April and November. Mosquitoes were captured with adult and oviposition traps, as well as by larval sampling. A logistic regression was performed to investigate the percentage of positive PoE’s for Ae. albopictus over the years. Results: Aedes albopictus has been detected at ten PoE’s, Ae. japonicus at three PoE’s and Aedes koreicus at two PoE’s. The latter two species have established overwintering populations. The percentage of PoE’s positive for Ae. albopictus increased significantly over time. Aedes albopictus is currently entering Belgium through lucky bamboo trade, used tyre trade and passive ground transport, while Ae. japonicus only through the latter two pathways. In Belgium, the import through passive ground transport was first recorded in 2018 and its importance seems to grow.Conclusion: Belgium is currently at the invasion front of Ae. albopictus and Ae. japonicus. The surveillance and control management actions at well-known PoE‘s associated to long-distance introductions are more straightforward than at less-defined PoE’s associated with short-distance introductions from colonised areas. These latter PoE’s represent a new challenge for IMS management in Belgium in the coming years and stresses the urgence of implementing a sustainable, structured and long-term IMS management programme, integrating active and passive surveillance and control.

scholarly journals Citizen science and biodiversity: first record of Aedes (Fredwardsius) vittatus (Bigot, 1861) (Diptera, Culicidae) in Galicia, by the means of the Mosquito Alert platform

2018 ◽  
pp. 41-45 ◽  
Author(s):  
Roger Eritja ◽  
Marga Rubido-Bará ◽  
Sarah Delacour-Estrella ◽  
Mikel Bengoa ◽  
Ignacio Ruiz-Arrondo ◽  
...  
Keyword(s):  
Citizen Science ◽  
Expert Knowledge ◽  
Mosquito Species ◽  
First Record ◽  
Autonomous Region ◽  
Science Project ◽  
Large Pool ◽  
Invasive Mosquito ◽  
Biodiversity Study ◽  
Citizen Science Project

Se expone la primera cita de Aedes (Fredwardsius) vittatus (Bigot, 1861) en la comunidad autónoma de Galicia, conseguida gracias a la plataforma de ciencia ciudadana Mosquito Alert. Aun cuando este proyecto está enfocado hacia la detección y seguimiento de dos especies de culícidos exóticos invasores: Aedes (Stegomyia) albopictus (Skuse 1894) y Aedes (Stegomyia) aegypti (L.), se evidencia la gran capacidad existente para el estudio de la biodiversidad así como la detección de otras especies por parte de plataformas que se apoyan en miles de ciudadanos motivados y un equipo experto. We present here the first record of Aedes (Fredwardsius) vittatus (Bigot, 1861) in the autonomous region of Galicia, obtained by the means of the citizen science project Mosquito Alert. Whereas this project only aims to the monitoring and early detection of the two invasive mosquito species Aedes (Stegomyia) albopictus (Skuse 1894) and Aedes (Stegomyia) aegypti (L.), it is worth noting its capacities in regards to the general biodiversity study and the detection of mosquito species if a large pool of users combines with the expert knowledge.

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