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1 January 2013 A Simple Non-Powered Passive Trap for the Collection of Mosquitoes for Arbovirus Surveillance
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Abstract

Mosquitoes often are collected as part of an arbovirus surveillance program. However, trapping and processing of mosquitoes for arbovirus detection is often costly and difficult in remote areas. Most traps, such as the gold standard Center for Disease control light trap, require batteries that must be charged and changed overnight. To overcome this issue we have developed several passive traps for collection of mosquitoes that have no power requirements. The passive traps capture mosquitoes as they follow a CO2 plume up a polyvinyl chloride pipe leading to a clear chamber consisting of a plastic crate. We believe the translucent, clear windows created by the crate inhibits escape. Once inside the crate mosquitoes readily feed on honey-treated Flinders Technology Associates cards that then can be processed by polymerase chain reaction for viral ribonucleic acid. Of the two designs tested, the box or crate-based passive trap (passive box trap, PBT) generally caught more mosquitoes than the cylinder trap. In Latin square field trials in Cairns and Florida, PBTs collected mosquitoes at rates of 50 to 200% of Center for Disease Control model 512 light traps. Mosquito collections by PBTs can be increased by splitting the CO2 gas line so it services two traps, or by placing an octenol lure to the outside of the box. Very large collections can lead to crowding at honey-treated cards, reducing feeding rates. Addition of fipronil to the honey killed mosquitoes and did not impact feeding rates nor the ability to detect Kunjin viral ribonucleic acid by polymerase chain reaction; this could be used to minimize crowding affects on feeding caused by large collections. The passive traps we developed are made from inexpensive, commonly available materials. Passive traps may thus be suitable for collection of mosquitoes and potentially other hematophagous dipterans for pathogen surveillance.

© 2013 Entomological Society of America
Scott A. Ritchie, Giles Cortis, Christopher Paton, Michael Townsend, Donald Shroyer, Paul Zborowski, Sonja Hall-Mendelin, and Andrew F. Van Den Hurk "A Simple Non-Powered Passive Trap for the Collection of Mosquitoes for Arbovirus Surveillance," Journal of Medical Entomology 50(1), 185-194, (1 January 2013). https://doi.org/10.1603/ME12112
Received: 16 May 2012; Accepted: 1 August 2012; Published: 1 January 2013
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