Orientation of Tribolium castaneum (Coleoptera: Tenebrionidae) adults to 4,8-dimethyldecanal,kairomone and botanical oils following ambient,low, or high temperature exposure |
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| Affiliation: | 1. Department of Plant Sciences, Faculty of Agriculture, Rajarata University of Sri Lanka, Puliyankulama, Anuradhapura, Sri Lanka;2. USDA, Agricultural Research Service, Center for Grain and Animal Health Research, 1515 College Ave, Manhattan, KS, 66052, USA;1. Laboratory of Acarology, Tecnovates, University of Taquari Valley – Univates. Avenida Avelino Talini, 171, Bairro Universitário, Lajeado, 95914-014, Rio Grande do Sul, Brazil;2. Analytical Chemistry Laboratory, University of Vale do Taquari – Univates. Avenida Avelino Talini, 171, Bairro Universitário, Lajeado, 95914-014, Rio Grande do Sul, Brazil;3. Department of Microbiology, Immunology, and Parasitology, Federal University of Rio Grande do Sul. Rua Sarmento Leite, 500, room 325, Porto Alegre, 90050-170, Rio Grande do Sul, Brazil;4. Postgraduate Program in Medicine: Medical Sciences, Federal University of Rio Grande do Sul. Rua Ramiro Barcelos, 2400, 2nd Floor, Porto Alegre, 90035-003, Rio Grande do Sul, Brazil;5. Postgraduate Program in Agricultural and Environmental Microbiology, Federal University of Rio Grande do Sul. Rua Sarmento Leite, 500, room 325, Porto Alegre, 90050170, Rio Grande do Sul, Brazil;1. AICRP on PHET, College of Agricultural Engineering & Technology, Odisha University of Agriculture & Technology, Bhubaneswar, Odisha, 751003, India;2. Post Harvest Process and Food Engineering, College of Agriculture, Jawaharlal Nehru Agricultural University, Tikamgarh, Madhya Pradesh, 472001, India;1. Department of Biological Sciences, University of Bamenda, PO Box 39, Bambili, Cameroon;2. Department of Biological Sciences, University of Ngaoundere, PO Box 454, Ngaoundere, Cameroon;3. Federal Research Centre for Cultivated Plants – Julius Kühn – Institut, Institute for Ecological Chemistry, Plant Analysis and Stored Product Protection, Königin-Luise-Str. 19, D-14195, Berlin, Germany;1. Henan University of Technology, Collaborative Innovation Center of Henan Grain Crops, Henan Collaborative Innovation Center of Grain Storage and Security, Zhengzhou, 450001, China;2. Henan Agricultural University, Zhengzhou, 450002, Henan, China;3. Morden Research and Development Centre, Agriculture and Agri-Food Canada, Biosystems Engineering, Room E2-376, Engineering, Information and Technology Complex, 75A Chancellor''s Circle, University of Manitoba, Winnipeg, MB R3T 5V6, Canada;1. Henan Collaborative Innovation Center for Grain Storage Security, School of Food Science and Technology, Henan University of Technology, Henan, Zhengzhou, 450001, China;2. Zhengzhou Tobacco Research Institute of CNTC, No. 2, Fengyang Street, Zhengzhou High-Tech Development Zone, Zhengzhou, Henan, 450001, China;3. Laboratory of Grain Storage and Pest Control, Grain Storage and Logistics National Engineering Laboratory, Guangdong Institute for Cereal Science Research, Guangzhou, 510050, China |
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| Abstract: | The aggregation pheromone 4,8-dimethyldecanal (4,8 DMD) used alone or with kairomone-baited traps generally is used for monitoringTribolium castaneum (Herbst) but low efficiency is reported. Furthermore, insect orientation to pheromones and kairomones following low or high temperature exposure is not yet understood. This research evaluated the orientation of T. castaneum adults to 4,8 DMD and common kairomones following exposure to ambient, low or high temperatures. Fifty adults were introduced to the middle of rectangular glass chamber, and movement to the treatment or control was determined after 1 h. In experiment 1, insects reared at 30°C were used. Experiments 2 and 3 used insects exposed to 10°C for 4 days (cold temperature) and 42°C for 12 h (brief high temperature), respectively at 2–8 h following cold or heat exposure. The highest trapping occurred when 4,8DMD was combined with neem oil whereas the lowest was in coconut oil alone. Neem oil alone demonstrated repellent action. Prior exposure to cold or heat initially reduced taxis of T. castaneum adults to traps. The attraction for adults exposed to cold and heat was restored after 6–8 h when traps contained pheromone + neem or coconut oil. This study marks the first to experimentally test how exposure to high or low temperatures, two key IPM tactics in the post-harvest supply chain, affects the behavioral response of an important stored-product species to pheromone- and kairomones-baited traps. |
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| Keywords: | Aggregation pheromone Low/high temperature pre-exposure Neem oil Coconut oil Red flour beetle |
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