BioOne.org will be down briefly for maintenance on 12 February 2025 between 18:00-21:00 Pacific Time US. We apologize for any inconvenience.
How to translate text using browser tools
30 December 2020 An Efficient Alternative to the CDC Gravid Trap for Southern House Mosquito (Diptera: Culicidae) Surveillance
Timothy D. McNamara, Thomas A. O'Shea-Wheller, Nicholas DeLisi, Emily Dugas, Kevin A. Caillouet, Randy Vaeth, Dennis Wallette Jr., Kristen Healy
Author Affiliations +
Abstract

West Nile virus (WNV) is the most prevalent arbovirus found throughout the United States. Surveillance of surface breeding Culex vectors involved in WNV transmission is primarily conducted using CDC Gravid traps. However, anecdotal claims from mosquito abatement districts in Louisiana assert that other trap types may be more suited to WNV surveillance. To test the validity of these assertions, we conducted a series of trapping trials and WNV surveillance over 3 yr to compare the efficacy of multiple trap types. First, we compared the CDC Gravid trap, CO2-baited New Standard Miniature Blacklight traps, and CO2-baited CDC light traps with either an incandescent light, a red light, or no light. We found that the CDC Gravid trap and CO2-baited no-light CDC Light trap collected the most mosquitoes. Second, we conducted additional, long-term trapping and WNV surveillance to compare these two trap types. We found that CO2-baited no-light CDC traps collected more of the local WNV vector, Culex quinquefasciatus (Say, Diptera, Culicidae), and detected WNV with greater sensitivity. Finally, we conducted trapping to compare the physiological states of Cx. quinquefasciatus and diversity of collected mosquitoes. CO2-baited no-light CDC light traps collected more unfed Cx. quinquefasciatus while Gravid traps collected more blooded Cx. quinquefasciatus; both traps collected the same number of gravid Cx. quinquefasciatus. Additionally, we found that CO2-baited no-light CDC light traps collected a larger diversity of mosquito species than Gravid traps.

© The Author(s) 2020. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
Timothy D. McNamara, Thomas A. O'Shea-Wheller, Nicholas DeLisi, Emily Dugas, Kevin A. Caillouet, Randy Vaeth, Dennis Wallette Jr., and Kristen Healy "An Efficient Alternative to the CDC Gravid Trap for Southern House Mosquito (Diptera: Culicidae) Surveillance," Journal of Medical Entomology 58(3), 1322-1330, (30 December 2020). https://doi.org/10.1093/jme/tjaa259
Received: 6 November 2019; Accepted: 20 October 2020; Published: 30 December 2020
JOURNAL ARTICLE
9 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

KEYWORDS
CDC light trap
Culex quinquefasciatus
gravid trap
mosquito surveillance
West Nile virus surveillance
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top