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Evaluation of boric acid sugar baits against Aedes albopictus (Diptera: Culicidae) in tropical environments

Naranjo, Diana P., Qualls, Whitney A., Müller, Gunter C., Samson, Dayana M., Roque, Deborah, Alimi, Temitope, Arheart, Kristopher, Beier, John C., Xue, Rui-De
Parasitology research 2013 v.112 no.4 pp. 1583-1587
Aedes albopictus, Pentas lanceolata, active ingredients, adults, baits, bioassays, boric acid, field experimentation, leaves, monitoring, mortality, oviposition, ovitraps, sugar acids, toxicity, Florida
Attractive toxic sugar bait (active ingredient, 1 % boric acid) was evaluated against Aedes albopictus Skuse populations in the laboratory, semi-field trials, and field trials in residential communities in St. Augustine, Florida. Laboratory evaluations of boric acid sugar baits applied to the plant Pentas lanceolata (Rubiaceae) demonstrated 100 and 92 % mortality of A. albopictus at day 7 and 14, respectively. A semi-field study evaluating the bait application to the upperside or topside of leaves resulted in no significant difference on mortality (P > 0.05). Overall combined top and bottom boric acid sugar bait application mortality at day 7 was 95 % based on leaf bioassays. Field application of the boric acid sugar baits significantly (P < 0.05) decreased adult A. albopictus populations up to day 21 post-treatment compared to the pre-treatment population numbers. A significant reduction in oviposition was demonstrated both at day 7 and 14 post-application (P = 0.001) as monitored by ovitraps. Attractive toxic sugar bait application in tropical environments demonstrated efficacy, persistence, and feasibility in controlling A. albopictus populations.