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Fairfax, VA, United States

Orr J.M.,0777 Main Street | Smith J.D.,0777 Main Street | Zawada S.G.,Joanne Jorgenson Laboratory | Arias J.R.,0777 Main Street
Systematic and Applied Acarology

The effectiveness of various trap intervals (two, four, six, eight, sixteen and twenty-four hours) for collecting ticks was compared for different times of the day throughout a one-year period. A total of 9,508 ticks [Amblyomma americanum (L.), Amblyomma maculatum Koch, Dermacentor variabilis (Say), Ixodes scapularisSay; (Acari: Ixodidae)] were collected on carbon dioxide baited traps. The eight-hour (8:00-16:00 h) trapping interval caught the most ticks. Amblyomma americanum nymphs and adults as well as I. scapularis nymphs were most common in May, while I. scapularis adults were collected most often during the winter months. PeakA. americanum activity shifted from midday to morning during the warmest months of the year. © 2013 Systematic & Applied Acarology Society. Source

Bhalala H.V.,0777 Main Street | Smith J.D.,0777 Main Street | O'Dea B.A.,0777 Main Street | Arias J.R.,0777 Main Street
Journal of the American Mosquito Control Association

This study determined whether the addition of a CO2 nozzle made specifically for the BG-Sentinel™ trap increased the efficacy of collecting host-seeking mosquitoes, particularly Aedes albopictus and Culex spp., which includes Cx. pipiens, Cx. restuans, and occasionally Cx. salinarius in Fairfax County, VA. Twenty BG-Sentinel traps were incorporated into the Fairfax County West Nile virus (WNV) surveillance program: 10 traps were randomly selected each week to have the nozzle attached, and the remaining 10 traps were without the nozzle. The BG-Sentinel traps collected 20 mosquito species with the nozzle and 19 mosquito species without the nozzle. The traps with the nozzle collected 46.58 (SE 3.236) mosquitoes per 24-h trap-period and the traps without the nozzle collected 46.73 (SE 2.942) mosquitoes per 24-h trap-period, and no significant difference (P > 0.05) was found. There was no significant difference (P > 0.05) in the collection of Aedes albopictus, Culex spp., Anopheles punctipennis, Ae. vexans, and Aedes triseriatus between the traps with or without the nozzle. Other mosquito species were collected in low numbers and statistical analysis was not performed. Both the traps with and without the nozzle collected WNV-infected Aedes albopictus and Culex spp. © 2010 by The American Mosquito Control Association, Inc. Source

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