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1 March 2008 Mosquito Production in Stormwater Treatment Devices in the Lake Tahoe Basin, California
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In response to increasing evidence of mosquito production in structural stormwater Best Management Practices (BMPs), a collaborative project was developed to document the occurrence, species composition, and seasonal abundance of mosquitoes from selected urban and highway BMPs in the Lake Tahoe Basin, California. Structural and environmental factors associated with mosquito production in highway BMPs were identified and analyzed. Ten species of mosquitoes were collected from 47 BMPs, including Culex tarsalis, Culiseta incidens, Cs. inornata, and 7 species of Aedes. In and around South Lake Tahoe, immatures were most abundant in urban BMPs during the warmer summer and fall months, whereas natural water sources in the surrounding area harbored mosquitoes more often during the colder months of early spring. In BMPs installed along Lake Tahoe's perimeter highways, mosquitoes were observed in 11% of site visits conducted during a single season. Larval presence in highway BMPs was positively associated with water temperature and negatively associated with precipitation, sand, and unspecified organic matter. The significance of mosquito production in BMPs of the Tahoe Basin and the potential for increased transmission of mosquito-borne disease are discussed.

Jonathan A. Kwan, Jamie M. Riggs-Nagy, Curtis L. Fritz, Mitch Shindelbower, Peter A. Castro, Vicki L. Kramer, and Marco E. Metzger "Mosquito Production in Stormwater Treatment Devices in the Lake Tahoe Basin, California," Journal of the American Mosquito Control Association 24(1), 82-89, (1 March 2008).
Published: 1 March 2008

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