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Field evaluation of baited traps for surveillance of Aedes japonicus japonicus in Switzerland
Author(s) -
BALESTRINO F.,
SCHAFFNER F.,
FORGIA D. L.,
PASLARU A. I.,
TORGERSON P. R.,
MATHIS A.,
VERONESI E.
Publication year - 2016
Publication title -
medical and veterinary entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.028
H-Index - 82
eISSN - 1365-2915
pISSN - 0269-283X
DOI - 10.1111/mve.12152
Subject(s) - biology , aedes , veterinary medicine , toxicology , zoology , ecology , larva , medicine
The efficacy of Centers for Disease Control ( CDC ) miniature light traps and ovitraps was tested in the outskirts of the city of Zurich in Switzerland for their use in the surveillance of Aedes ( Hulecoeteomyia ) japonicus japonicus (Theobald) (Diptera: Culicidae), the invasive Asian bush mosquito. Sets of single CDC traps were run overnight ( n = 18) in three different environments (forest, suburban and urban) in 3 × 3 Latin square experimental designs. Traps were baited with: (a) carbon dioxide ( CO 2 ); (b) CO 2 plus light, or (c) CO 2 plus lure blend [Combi FRC 3003 ( iGu ® )]. At the same locations, mosquito eggs were collected weekly using standard ovitraps baited with different infusions (oak, hay or tap water) and equipped with different oviposition substrates (a block of extruded polystyrene, a germination paper strip or a wooden stick). Data were analysed using Poisson and negative binomial general linear models. The use of light ( P < 0.001) or lure ( P < 0.001) significantly increased the attractiveness of CDC traps baited with CO 2 . Oak and hay infusions did not increase the attractiveness of ovitraps compared with standing tap water ( P > 0.05), and extruded polystyrene blocks were preferred as an oviposition substrate over wooden sticks ( P < 0.05) and seed germination paper ( P < 0.05). Carbon dioxide‐baited CDC miniature light traps complemented with light or iGu ® lure and ovitraps containing standing tap water and polystyrene oviposition blocks can be considered as efficient and simple tools for use in Ae. j. japonicus surveillance programmes.