Strategies for controlling the ghost ant, Tapinoma melanocephalum (Hymenoptera: Formicidae) with liquid bait

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Strategies for controlling the ghost ant, Tapinoma melanocephalum (Hymenoptera: Formicidae) with liquid bait
出版類型SCI(Sciences Citation Index)
AuthorsNiann Tai Chang, 張念台
出版日期2013 / 1

The ghost ant, Tapinoma melanocephalum (F.), is a household pest and a considerable nuisance. The aim of this study is to demonstrate the toxicity and control efficacy of boric acid in liquid bait against queen and worker ghost ants. The LT50 values for workers fed with 0.5%–2.5% boric acid and 2% chicken peptone in 20% sucrose water solutions were 4.3–2.4 days. The lethal times (LT50=5.2–7.6 days) for queen ghost ants fed with various concentrations of a boric acid solution depended on the feeding behavior of the queens. The high boric acid (4%) content solutions were not repellent to the ghost antworkers. The liquid bait formulation of 1% boric acid,which caused a 100%worker, brood, and queen population reduction in 4, 4, and 5 weeks, respectively,was significantly more effective than the solid bait formulation containing the same concentration (p≦0.05). The simulation tests involved using chicken peptone and sucrose as the attractant, and colonies were provided an alternate food source (20% sucrose solution and dog food) to achieve a more accurate assessment of bait acceptability in
screening for the efficacy of the liquid boric acid bait. The control efficiency attained 99.9% inweek 4. The results demonstrated that liquid bait, containing 2% chicken peptone, 20% sucrose as a food attractant, and 1% boric acid as the toxin, is efficient and highly recommended for ghost ant control.

期刊名稱Journal of Asia-Pacific Entomology
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