Overwintering of culex modestus and other mosquito species in a reedbed ecosystem, including arbovirus findings

Ivo Rudolf, Silvie Šikutová, Oldřich Šebesta, Jan Mendel, Igor Malenovský, Helge Kampen, Jolyon Medlock, Francis Schaffner

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The overwintering strategy of the mosquito Culex modestus, an important West Nile virus (WNV) vector in Europe, was explored under field conditions in reedbed (Phragmites australis) ecosystems in early 2019. A total of 30 Cx. modestus females were found in a BG-Sentinel trap placed in a plastic greenhouse as well as in a reference BG-Sentinel trap placed under the open sky, both set up within the reedbeds and inspected every 2–3 days from February 27 to April 10, 2019. Moreover, 186 females of Cx. pipiens, 3 females of Anopheles hyrcanus, and 3 females of Culiseta annulata were trapped in the monitored time span. While all Cx. modestus females tested negative for the presence of WNV and other arboviruses circulating in Central Europe, we confirmed WNV lineage 2 and Tahyna virus infection in several pools of the collected Cx. pipiens, demonstrating arbovirus overwintering. This pilot study highlights the need for large-scale monitoring activities covering different regions to identify the overwintering strategy of both mosquito-borne viruses and their vectors in Central Europe.

Original languageEnglish
Pages (from-to)257-260
Number of pages4
JournalJournal of the American Mosquito Control Association
Volume36
Issue number4
DOIs
Publication statusPublished - Dec 2020

Bibliographical note

Publisher Copyright:
Copyright © 2020 by The American Mosquito Control Association, Inc.

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

Keywords

  • Anopheles hyrcanus
  • Arboviruses
  • Culex modestus
  • Culex pipiens
  • Culiseta annulata
  • Overwintering

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