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Tolerance thresholds for Aedes albopictus and Aedes caspius in Italian urban areas.

Authors
  • Carrieri, Marco
  • Bellini, Romeo
  • Maccaferri, Simona
  • Gallo, Lorenza
  • Maini, Stefano
  • Celli, Giorgio
Type
Published Article
Journal
Journal of the American Mosquito Control Association
Publication Date
Sep 01, 2008
Volume
24
Issue
3
Pages
377–386
Identifiers
PMID: 18939689
Source
Medline
License
Unknown

Abstract

With nuisance mosquito species, the goal of integrated pest management is to keep mosquito density below a tolerance level that is often set by economic, ecological, and political factors. This study compares actual human annoyance, as measured by a phone survey, with several measures of mosquito abundance, in order to determine a threshold that is both relevant and practical. The efficiency of CO2-baited traps, container index (CI), and oviposition traps for monitoring Aedes albopictus, and CO2-baited traps for monitoring Aedes caspius, was evaluated. CO2-baited traps were confirmed to be of low efficiency in Ae. albopictus collection, while correlation matrices showed a good relationship between CI and the number of eggs collected (R = 0.91), and between number of eggs and phone-survey nuisance level estimates (R = 0.88). Correlation between CI and phone-survey nuisance levels was slightly lower (R = 0.78). We found a close relationship between the nuisance level declared by residents and mosquito captures obtained with CO2-baited traps (Ae. caspius) and ovitraps (Ae. albopictus). An equation is presented to estimate annoyance according to dwelling characteristics and to the presence of children in the family.

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