The 2005 ESA Annual Meeting and Exhibition
December 15-18, 2005
Ft. Lauderdale, FL

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Friday, December 16, 2005 - 10:06 AM
0460

Seasonal abundance of Culex mosquitoes in southwestern Virginia

Bryan T. Jackson, brjacks3@vt.edu, Virginia Tech, Department of Entomology, 216-A Price Hall (MC0319), Blacksburg, VA and Sally L. Paulson, spaulson@vt.edu, Virginia Tech University, Department of Entomology, Blacksburg, VA.

Ovitrap collections were done to determine the seasonal distribution and ovipositional activity of Culex restuans and Culex pipiens in southwestern Virginia during the summers of 2002 and 2003. In both years, Cx. restuans was the first species collected and was the dominant species throughout the collecting period. Over 90% of the collections were comprised of Cx. restuans. Two oviposition peaks occurred in both years for Cx. restuans, the first in June and second in the middle of July. Culex pipiens made up less 7% of the total catch and started to appear in the traps in the middle of the trapping season with a peak occurring in August. While ovipositional activity began to decline for Cx. restuans, at the end of the trapping period, there was a slight increase in ovipostional activity for Cx. pipiens, but not enough to result in a crossover. A third species, Culex salinarius, was collected in the traps but the total number of egg rafts accounted for less than 1% of the total collections.


Species 1: Diptera Culicidae Culex restuans
Species 2: Diptera Culicidae Culex pipiens (Northern House Mosquito)
Keywords: Seasonal distribution, Oviposition activity