Predation capacity,development and reproduction of the southern African flower bugs Orius thripoborus and Orius naivashae (Hemiptera: Anthocoridae) on various prey |
| |
| Institution: | 1. Laboratory of Agrozoology, Department of Crop Protection, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium;2. South African Sugarcane Research Institute, Private Bag X02, Mount Edgecombe 4300, South Africa;3. School of Life Sciences, University of KwaZulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg 3209, KwaZulu-Natal, South Africa;1. Universidade Federal de São Carlos, Departamento de Biologia, Laboratório de Sistemática de Diptera, Sorocaba, SP, Brazil;2. Universidade Federal do Oeste da Bahia, Centro das Ciências Biológicas e da Saúde, Laboratório de Zoologia, Barreiras, BA, Brazil;1. State Key Laboratory of Crop Stress Biology for Arid Areas and Key Laboratory of IPM of Crop Pests on the Northwest Loess Plateaus of Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi 712100, China;2. Institute of Plant and Environmental Protection, Beijing Academy of Agricultural and Forestry Sciences, Banjingcun, Haidian, Beijing 100089, China;1. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China;2. College of Plant Protection, Shenyang Agricultural University, Shenyang, 110866, China;3. School of Resource and Environmental Sciences, Henan Institute of Science and Technology, Xinxiang, Henan, 453003, China;4. Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Key Laboratory of Integrated Pest Management on Crop in Northwestern Oasis, Ministry of Agriculture and Rural Affairs, Urumqi, 830091, China;1. Institut Agroforestal Mediterrani, Universitat Politècnica de València, València, Spain;2. R&D Department, Biobest Belgium N.V, Westerlo, Belgium;1. Department of Entomology, University of Georgia, Athens, GA 30602, USA;2. Department of Entomology, Washington State University, Pullman, WA 99164, USA |
| |
| Abstract: | The little-studied species Orius thripoborus (Hesse) and Orius naivashae (Poppius) (Hemiptera: Anthocoridae) have potential as biological control agents of thrips pests in southern Africa, but may also hold promise for the control of other harmful arthropods. In this study, the predation capacity, development, reproduction and growth rates of both predatory species on the key pests Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), Tetranychus urticae Koch (Acari: Tetranychidae) and Myzus persicae nicotianae Blackman (Hemiptera: Aphididae) were examined under laboratory conditions. Female adults of O. thripoborus and O. naivashae fed on 24 and 18 F. occidentalis 2nd instars, and 15 and 21 T. urticae eggs per day, respectively. Developmental and reproductive parameters of both Orius species were most favorable on F. occidentalis. Their intrinsic rates of increase (rm) were highest when fed on F. occidentalis, averaging 0.123 and 0.131 females/female/day for O. thripoborus and O. naivashae, respectively. On the other prey, O. thripoborus showed significantly higher rm-values than O. naivashae. Overall, rm-values on M. persicae nicotianae were higher than on T. urticae, although differences were only significant for O. thripoborus. For O. naivashae, the estimated intrinsic rates of increase on the tested non-thrips prey were slightly negative. Our findings indicate the potential of both Orius spp. as biocontrol agents of thrips, whereas only O. thripoborus appears to hold promise for the suppression of aphids and spider mites as well. |
| |
| Keywords: | Anthocoridae Predation Intrinsic rate of increase Biological control Southern Africa |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
