Field evaluation of three-component solid food-based dispenser versus torula yeast for capturing Mediterranean and oriental fruit flies (Diptera: Tephritidae) |
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| Affiliation: | 1. USDA-APHIS, 41-650 Ahiki Street, Waimanalo, HI 96795, USA;2. USDA-APHIS, 64 Nowelo Street, Hilo, HI 96720, USA;1. Universidad Autónoma de Tamaulipas, Instituto de Ecología Aplicada, División del Golfo 356, Col. Libertad, 87019 Ciudad Victoria, Tamaulipas, Mexico;2. Universidad Autónoma de Nuevo León, Facultad de Agronomía, Laboratorio de Biotecnología, Francisco Villa S/N Col, Ex hacienda El Canada, General Escobedo, N.L. C.P. 66050, Mexico;1. Insect Biosystematics Laboratory, Research Institute of Agriculture and Life Science, Department of Agricultural Biotechnology, Seoul National University, 151-921, South Korea;2. 207-404, Dogok Rexle Apt., 221, Seolleung-ro, Gangnam-gu, Seoul, South Korea;3. Gangseo High School, Mok-dong 735, Yangcheon-gu, Seoul, South Korea;1. Palaeobotany-Palynology Laboratory, Department of Botany, Sidho-Kanho-Birsha University, Ranchi Road, Purulia 723104, India;2. Presidency University, 86/1, College Street, Calcutta University Road, Kolkata, West Bengal 70073, India;3. CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla 666303, PR China;4. School of Environment, Earth and Ecosystem Sciences, The Open University, Milton Keynes MK7 6AA, UK;5. Entomology Laboratory, Department of Zoology, Kalyani University, Kalyani, Nadia, West Bengal 741235, India;6. Centre of Advanced Study, Department of Botany, University of Calcutta, 35, B.C. Road, Kolkata 700019, India |
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| Abstract: | Certain species of true fruit flies (Diptera: Tephritidae) are worldwide pests of fruits and vegetables, and many countries operate trapping programs to detect and monitor invasions. Torula yeast-borax (TYB) solution is a widely used food bait, although its effective field longevity is relatively short (1–2 weeks). This led to the development of a synthetic cone-shaped food dispenser that contains ammonium acetate, putrescine, and trimethylamine. The food cone has received limited testing, and the objective of this study was to compare captures of the Mediterranean fruit fly (Ceratitis capitata (Wiedemann)) and the oriental fruit fly (Bactrocera dorsalis (Hendel)) in traps baited with the fresh TYB solution versus traps baited with fresh or weathered food cones. Captures showed a female bias for both baits and both species. For C. capitata, fresh food cones generally attracted more individuals than fresh TYB. Weathered food cones attracted similar or greater numbers of medflies than TYB for the initial two weeks, but food cones weathered for 4 or 6 weeks attracted fewer flies than TYB. For B. dorsalis, TYB-baited traps captured more females than fresh or weathered food cone-baited traps in each of six weekly sampling periods, and the differences were statistically significant in weeks 1–4. In a release-recapture experiment, both C. capitata and B. dorsalis were captured in higher numbers in traps baited with fresh TYB than those baited with food cones weathered for 0 (fresh) to 6 weeks. The implications of these results for fruit fly surveillance are discussed. |
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| Keywords: | Food-based trapping |
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