TY - JOUR T1 - Invertebrates found in underground shelters of western Bohemia. I. Mosquitoes (Diptera: Culicidae) JF - Journal of the European Mosquito Control Association Y1 - 2014 A1 - Dvorak, Libor SP - 27 EP - 32 KW - Anopheles KW - Culex KW - Culicidae KW - Culiseta KW - Czech Republic KW - hibernation KW - underground shelters AB -

Mosquitoes found hibernating in underground shelters were studied in western Bohemia, Czech Republic. Species collected included Culiseta alaskaensis, Cs. annulata, Cs. glaphyroptera, Culex spp., and Anopheles maculipennis s.l.. Culex spp. were the most common, followed by Cs. glaphyroptera and Cs. annulata with few records of Cs. alaskaensis and An. maculipennis s.l.. Culex spp. were found in a variety of shelters, An. maculipennis s.l. preferred cellars, and Cs. alaskaensis where they were found, exhibited little preference. Culiseta annulata and Cs. glaphyroptera were found in similar numbers of cellars, caves, and bunkers, but Cs. glaphyroptera were found more commonly in mines than Cs. annulata.


 

VL - 32 ER - TY - JOUR T1 - COI sequencing for invasive mosquito surveillance in Germany reveals genetically divergent specimens near Aedes geniculatus (Diptera: Culicidae) JF - Journal of the European Mosquito Control Association Y1 - 2014 A1 - Krüger, Andreas A1 - Obermayr, Ulla A1 - Czajka, Christina A1 - Bueno-Marí, Ruben A1 - Jost, Artur A1 - Rose, Andreas SP - 22 EP - 26 KW - Aedes (Finlaya) echinus KW - Aedes (Finlaya) geniculatus KW - Aedes (Finlaya) gilcolladoi KW - COI barcoding KW - Germany KW - invasive species AB -

During routine surveillance for invasive mosquitoes in southern Germany, using BG-Sentinel traps that were run continuously for one to two weeks, specimens were often damaged which prevented morphological species identification. We used DNA sequencing of the COI gene for molecular identification of damaged specimens, and observed two individuals from 2013 with aberrant COI-sequences. These two specimens were collected on separate occasions, and represent COI haplotypes that differ from Aedes (Finlaya) geniculatus by 2.0 - 2.4%, and from Aedes (Finlaya) echinus by 4.4 - 5.0%. Further analysis revealed a similarity to an Aedes (Finlaya) specimen from Macedonia, with these three specimens forming a genetic cluster. Our findings are discussed in the context of the three Aedes (Finlaya) species presently reported in Europe, and the potential introduction into Germany by road traffic.


 

VL - 32 ER - TY - JOUR T1 - Mosquito collections on incoming intercontinental flights at Schiphol International airport, the Netherlands, 2010-2011 JF - Journal of the European Mosquito Control Association Y1 - 2014 A1 - Ernst-Jan Scholte A1 - A. Ibaňez-Justicia A1 - Arjan Stroo A1 - Johan De Zeeuw A1 - Wietse Den Hartog A1 - Chantal B.E.M. Reusken SP - 17 EP - 21 KW - airport KW - Culex quinquefasciatus KW - disinsection KW - invasive mosquito species KW - vector surveillance AB -

Abstract: After a report of mosquito nuisance and collection of live Culex quinquefasciatus mosquitoes on board of a passenger aircraft from Africa to Amsterdam, a mosquito surveillance was carried out in 38 cabins of passenger aircraft from overseas airports immediately after landing at Amsterdam Schiphol airport, the Netherlands (2010 and 2011). Live mosquitoes were collected in 10 aeroplanes, belonging to the species Culex quinquefasciatus (n=9), Culex antennatus (n=2), and Aedes mcintoshi (n=1). All mosquitoes were collected in aeroplanes that came from airports located in Africa. Disinsection is discussed. Journal of the European Mosquito Control Association 32: 17-21, 2014

VL - 32 ER - TY - JOUR T1 - First interception of Aedes (Stegomyia) albopictus in Lucky bamboo shipments in Belgium. JF - Journal of the European Mosquito Control Association Y1 - 2014 A1 - Julie Demeulemeester A1 - Isra Deblauwe A1 - Jacobus De Witte A1 - Famke Jansen A1 - Adam Hendy A1 - Maxime Madder SP - 14 EP - 16 KW - Aedes albopictus KW - Belgium KW - biocide legislation KW - Dracaena braunii KW - surveillance KW - tiger mosquito AB -

Abstract: Six gel-and five water-transported Dracaena braunii shipments originating from the South coast of China were screened for exotic mosquito species during a surveillance project on exotic vectors in Belgium. In November 2013, a live Aedes (Stegomyia) albopictus larva was detected in a gel substrate. This is the first direct evidence of the importation of Ae. albopictus on gel-transported Lucky bamboo. It also confirms that the importation risk of Ae. albopictus by transport of ornamental bamboo plants remains. In addition to the registration of appropriate biocides, a structured and permanent surveillance programme is needed in Belgium to allow for the early detection of invasive mosquito species and the timely implementation of control measures. Journal of the European Mosquito Control Association 32: 14-16, 2014

VL - 32 ER - TY - JOUR T1 - First report of established population of Aedes japonicus japonicus (Theobald, 1901) (Diptera, Culicidae) in the Netherlands JF - Journal of the European Mosquito Control Association Y1 - 2014 A1 - A. Ibaňez-Justicia A1 - Kampen, Helge A1 - Marieta Braks A1 - Schaffner, Francis A1 - Steeghs, Maarteen A1 - Werner, Doreen A1 - Zielke, Dorothee A1 - Wietse Den Hartog A1 - Brooks, Mike A1 - Dik, Marian A1 - Bart van de Vossenberg A1 - Ernst-Jan Scholte SP - 9 EP - 13 KW - Aedes japonicus japonicus KW - first report KW - invasive mosquito species KW - The Netherlands AB -

Abstract: In January 2013, a female mosquito collected during the week 18th-25th July 2012 in Lelystad (The Netherlands) during routine national vector surveillance was morphologically identified and genetically confirmed as the Asian bush mosquito, Aedes japonicus japonicus. In order to assess the extent of the infestation area, subsequent extensive mosquito surveillance in the surrounding area during 2013 consisted of visual inspection of potential habitats and adult trapping in increasing radially around the location of the initial finding. This surveillance confirmed the existence of a widely established population of Ae. j. japonicus in the municipality of Lelystad. Despite this detection, it was decided not to implement any mosquito control measures for two reasons: this would require large scale biocidal treatment and community participation in order to be effective, and this species is not a confirmed vector of disease agents in the field. As an alternative, it was decided that community information would be provided to enable management measures such as larval habitat source reduction. Journal of the European Mosquito Control Association 32: 9-13, 2014

VL - 32 ER - TY - JOUR T1 - Efficiency of Bti-based floodwater mosquito control in Sweden – four examples JF - Journal of the European Mosquito Control Association Y1 - 2014 A1 - Schäfer, Martina L. A1 - Lundström, Jan O. SP - 1 EP - 8 KW - Aedes sticticus KW - Bti KW - floodwater mosquitoes KW - mosquito control KW - treatment coverage KW - treatment efficiency AB -

Abstract: Mass-occurrence of floodwater mosquitoes, mainly Aedes sticticus, in the River Dalälven floodplains in central Sweden has caused public health issues and economic losses for many decades. In the summer of 2000, the problem escalated and the Biological Mosquito Control project was initiated with the aim of reducing mosquito nuisance. Larviciding, based on Bacillus thuringiensis israelensis (Bti), was chosen as the optimal method. However, high abundance of blood-seeking floodwater mosquitoes after Bti-treatments on some occasions raised questions about the effectiveness of the treatments. This study evaluated the effect of Bti-larviciding on abundance of larval and adult floodwater mosquitoes in four selected study areas, each represented by a CDC-trap site and a 5 km radius. The four areas differed with respect to their mosquito control history and the coverage of larval habitats with Bti-larviciding. The Bti-treatments provided a significant reduction of mosquito larval abundance, and normally 100% reduction was achieved. Thus, high abundance of blood-seeking mosquitoes could not be explained by insufficient larval control by Bti. However, a significant negative correlation was found between high numbers of blood-seeking floodwater mosquitoes and the coverage of larval habitats with Bti-larviciding within 5 km around the trap site. Consistently low numbers of mosquitoes (less than 1000 per trap/night) were only found in the two areas with high treatment coverage of larval habitats (97-100%). Evaluating the mosquito control efficiency showed that larval habitat coverage of at least about 95% is required in order to accomplish consistent low floodwater mosquito numbers. The conclusion from this analysis is that the coverage of larval habitats with Bti-larviciding in parts of the River Dalälven floodplains has to increase in order to guarantee an improvement of the public health problems caused by Aedes sticticus and other floodwater mosquitoes to both humans and animals in the region. Journal of the European Mosquito Control Association 32: 1-8, 2014

VL - 32 ER -