Description and use of the Harris County Gravid Trap for West Nile virus surveillance 2003-06

James A. Dennett, Taweesak Wuithiranyagool, Martin Reyna-Nava, Adilelkhidir Bala, Robert B. Tesh, Ray E. Parsons, Rudy Bueno

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


The Harris County Gravid Trap (HCGT) used for West Nile virus (WNV) surveillance from 2003-06 is described. The HCGT collected 1,918,483 Culex quinquefasciatus females (over 36,627 periods), with 466,296.37 (8,452.74) yearly. Only 48,094 Aedes albopictus females (over 15,139 periods) were collected, with 10,277.79 (3,260.33) yearly. The highest mosquito production occurred in July for Cx. quinquefasciatus (63,851.25 ± 0.13), and for Ae. albopictus (2,981.80 ± 0.09). Integrating gravid traps within our program has increased our ability to detect WNV efficiently in both species.

Original languageEnglish (US)
Pages (from-to)359-362
Number of pages4
JournalJournal of the American Mosquito Control Association
Issue number3
StatePublished - Sep 2007
Externally publishedYes


  • Aedes albopictus
  • Culex quinquefasciatus
  • Gravid trap
  • Infusion
  • Ovipositional attractant
  • West Nile virus

ASJC Scopus subject areas

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


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