Monday, December 10, 2007 - 9:29 AM

Response of Aedes albopictus (Skuse) (Diptera: Culicidae) to residual bifenthrin on plant leaves in the laboratory

Melissa A. Doyle, madoyle@ufl.edu1, Daniel L. Kline, dkline@gainesville.usda.ufl.edu2, Allan Sandra A., sandy.allan@ars.usda.gov2, and Kaufman Phillip E., pkaufman@ufl.edu1. (1) University of Florida, Entomology and Nematology, PO Box 110620, Gainesville, FL, (2) USDA-ARS-CMAVE, 1600 SW 23rd Drive, Gainesville, FL

The day-time biting mosquito Aedes albopictus (Skuse) is a nuisance pest commonly found in suburban yards. The recommended course of treatment for Ae. albopictus is to keep yards free of water-holding containers, however, due to the aggressive nature of host-seeking Ae. albopictus, infestations of adults may require additional control methods such as residual pesticide applications to vegetation. Five plants commonly found in yards or in uncultivated areas in Gainesville, FL were chosen as substrates for evaluation of the effectiveness of residual bifenthrin against 5-7 day old female Ae. albopictus. Knock down was highest up to 7 days post-treatment. Plant species clearly impacted the effectiveness of residual bifenthrin. Differences in knockdown were also observed between males, females, blood-fed females, and gravid females in additional bioassays using bifenthrin-treated leaves.

Species 1: Diptera Culicidae Aedes albopictus (Asian tiger mosquito)