Pest Management Science (2018) 74, 1319-1327

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Verena Pichler, Romeo Bellini, Rodolfo Veronesi, Daniele Arnoldi, Annapaola Rizzoli, Riccardo Paolo Lia, Domenico Otranto, Fabrizio Montarsi, Sara Carlin, Marco Ballardini, Elisa Antognini, Marco Salvemini, Emanuele Brianti, Gabriella Gaglio, Mattia Manica, Pietro Cobre, Paola Serini, Enkelejda Velo, John Vontas, Ilias Kioulos, Joao Pinto, Alessandra della Torre and Beniamino Caputo (2018)
First evidence of resistance to pyrethroid insecticides in Italian Aedes albopictus populations 26 years after invasion
Pest Management Science 74 (6), 1319-1327
Aedes albopictus has spread during the last few decades all over the world. This has increased significantly the risk of exotic arbovirus transmission (e.g. chikungunya, dengue, and Zika) also in temperate areas, as demonstrated by the Chikungunya 2007 and 2017 outbreaks in northeastern and central Italy. Insecticides are an important tool for limiting the circulation of these mosquito-borne viruses. The aim of the present study was to address the gap in current knowledge of pyrethroid insecticide resistance of European Ae. albopictus populations, focusing on populations from Italy, Albania and Greece.
Bioassays for resistance to permethrin (0.75%), α-cypermethrin (0.05%) or deltamethrin (0.05%) were performed according to World Health Organization (WHO) protocols and showed reduced susceptibility (<90% mortality) of some Italian populations to permethrin and α-cypermethrin, but not to deltamethrin.
This study reports the first evidence of resistance to pyrethroids in adult Italian Ae. albopictus populations. Results refer to the season preceding the Chikungunya 2017 outbreak in central Italy and highlight the need to increase efforts to monitor the spread of insecticide resistance and the need to develop strategies to limit the spread of insecticide resistance, particularly in areas where extensive treatments have been carried out to contain disease outbreaks.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Romeo Bellini, John Vontas, Domenico Otranto, João Pinto, Fabrizio Montarsi, Alessandra della Torre, Rodolfo Veronesi

Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Aedes albopictus Albania
Aedes albopictus Greece
Aedes albopictus Italy