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1 November 2014 Optimizing Collection of Anopheles gambiae s.s. (Diptera: Culicidae) in Biogents Sentinel Traps
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Abstract

Surveillance of malaria vectors in Africa is most often accomplished using CDC-type light traps or human landing catches (HLCs). Over the past 30 yr, a variety of commercial and experimental mosquito traps have been developed for residential mosquito control or for improved surveillance of disease vector species, including the BG Sentinel (BGS) trap. To optimize collection of Anopheles gambiae Giles using this trap, BGS traps were modified with an opening (vent) added to the trap base to decrease exhaust airflow. Four traps configurations were tested with colony-reared host-seeking female An. gambiae in free-flying laboratory enclosures. Six attractant treatments (three attractants: BG-Lure, Limburger cheese, and a blank, with and without CO2) were tested concurrently. Across all trap—attractant combinations, significantly more mosquitoes (P < 0.05) were collected in standard, unmodified traps set upright (mean: 10.0) or upside down (9.8) than vented traps, whether upright (5.9) or upside down (7.0). The BG-Lure CO2 and Limburger Cheese CO2 bait combinations were more attractive than the other attractants tested alone. All attractant combinations collected significantly more mosquitoes than unbaited traps. Field studies are needed to determine if BG-Lure CO2- or Limburger cheese CO2-baited BGS traps are comparable with HLCs in collecting host-seeking An. gambiae.

© 2014 Entomological Society of America
David F. Hoel, Jake A. Marika, James C. Dunford, Seth R. Irish, Martin Geier, Ulla Obermayr, and Robert A. Wirtz "Optimizing Collection of Anopheles gambiae s.s. (Diptera: Culicidae) in Biogents Sentinel Traps," Journal of Medical Entomology 51(6), 1268-1275, (1 November 2014). https://doi.org/10.1603/ME14065
Received: 22 April 2014; Accepted: 1 August 2014; Published: 1 November 2014
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