Laboratory and field assessment of some kairomone blends for host-seeking Aedes aegypti

Craig Williams, Ramona Bergbauer, Martin Geier, Daniel L. Kline, Ulrich R. Bernier, Richard C. Russell, Scott A. Ritchie

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

ABSTRACT. Using laboratory Y-tube olfactometers, the attractiveness of lactic acid and 2 kairomone blends from the United States Department of Agriculture (USDA) and BioGents GmbH (BG) was assessed for attractiveness to Aedes aegypti. Four geographically disparate populations were assessed: North Queensland Australia (NQA), Florida USA, Minas Gerais Brazil (MGB), and Singapore. In descending order, populations were attracted to USDA, BG blends, and lactic acid. MGB was poorly attracted to lactic acid alone. The blends were less attractive than human odor. Proprietary blends were modified, and their attractiveness was assessed to find the optimum attractive mixture for NQA. Adding acetone to BG, and ammonia and caproic acid to USDA, improved attractiveness in the laboratory. Field attractiveness was assessed by coupling the blends with a newly developed BG-Sentinel Ae. aegypti trap. Trials were carried out using the BG blend, BG blend plus acetone, USDA blend, USDA blend plus ammonia and caproic acid, and a control trap with no kairomones. The traps were highly effective, with mean 24-h collections up to 11.15 Ae. aegypti per trap, and this species made up 91.7% of collections. However, the effectiveness of the unbaked control trap indicated that the BG-Sentinel has visual attractive properties for Ae. aegypti and that the kairomone lures added little to trap performance in NQA.

LanguageEnglish
Pages641-647
Number of pages7
JournalJournal of the American Mosquito Control Association
Volume22
Issue number4
DOIs
Publication statusPublished - 1 Dec 2006
Externally publishedYes

Keywords

  • Aedes aegypti
  • BG-Sentinel traps
  • Dengue
  • Host seeking
  • Kairomones
  • Y-tube olfactometer

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Public Health, Environmental and Occupational Health
  • Insect Science

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