Publikationsdatenbank

Insecticide resistance in stable flies (Stomoxys calcitrans) on dairy farms in Germany (2019)

Art

Zeitschriftenartikel / wissenschaftlicher Beitrag

Autoren

Reissert-Oppermann, Sophia (WE 13)

Bauer, Burkhard

Steuber, Stephan

Clausen, Peter-Henning (WE 13)

Forschungsprojekt

Occurrence and distribution of insecticide resistance in stable flies (Stomoxys calcitrans) on dairy farms in the federal state of Brandenburg, Germany

Quelle

Parasitology research

Bandzählung: 118

Heftzählung: 9

Seiten: 2499 – 2507

ISSN: 0932-0113

Sprache

Englisch

Verweise

URL (Volltext): https://link.springer.com/article/10.1007%2Fs00436-019-06400-z

DOI: 10.1007/s00436-019-06400-z

Pubmed: 31363921

Kontakt

Institut für Parasitologie und Tropenveterinärmedizin

Robert-von-Ostertag-Str. 7-13
14163 Berlin
+49 30 838 62310
parasitologie@vetmed.fu-berlin.de

Abstract / Zusammenfassung

Stable flies (Stomoxys calcitrans Linnaeus, 1758) can have a considerable negative impact on animal well-being, health, and productivity. Since insecticides constitute the mainstay for their control, this study aimed at assessing the occurrence of insecticide resistance in S. calcitrans on dairy farms in Brandenburg, Germany. First, the susceptibility of stable flies from 40 dairy farms to a deltamethrin-impregnated fabric was evaluated using the FlyBox® field test method. Then, S. calcitrans strains from 10 farms were reared in the laboratory, and the offspring was tested against the adulticides deltamethrin and azamethiphos and the larvicides cyromazine and pyriproxyfen. The FlyBox® method indicated 100% resistance in stable flies against deltamethrin. Later, to the offspring of those 10 established laboratory strains previously caught on suspected dairy farms, these field findings could be confirmed with mortalities well below 90% 24 h following topical application of the calculated LD95 of deltamethrin and azamethiphos. The ten strains could therefore be classified as resistant to the tested insecticides. In contrast, exposure to the insect growth regulators cyromazine and pyriproxyfen at their recommended concentrations demonstrated 100% efficacy. Both larvicides inhibited the moulting process of the stable fly larval stages completely, showing that the stable fly strains tested were susceptible to them. The intensive use of insecticides in recent decades has probably promoted the development of insecticide resistance. Systematic surveys in different livestock production systems and vigilance are therefore deemed necessary for estimating the risk of insecticide resistance development on a nationwide scale.