Attractive toxic sugar bait (ATSB) stations were deployed within underground storm drains in southern California to control the southern house mosquito (Culex quinquefasciatus). Trials over several years used varied ATSB designs and different toxicants/agents. Efficacy of ATSB stations was evaluated using UV-light traps, immature sampling, and presence of food dye from baits in adult mosquitoes captured from within storm drains. Supporting laboratory assays examined efficacy of toxicants/agents, mosquito attraction to and feeding on baits, and impact of varying bait formulations including sucrose concentration and bait dye color. An overview of these trials will be presented with discussion regarding the potential for using ATSB stations for mosquito control in underground storm drain or similar mosquito production sites.
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