Accelerated by global warming, climate change and human mobility, Biological Invasions of fruit flies (Tephritidae) have become a serious issue for fruit and vegetable production, as well as for international trading of agricultural commodities. Fruit flies threaten the economies of many countries all over the globe. The frequency of recent invasion events, in Africa, Middle East and Europe, highlights the weaknesses of existing systems in prevention, detection, eradication and containment efforts. The rapid dispersion of Bactrocera invadens (B. dorsalis group) throughout Africa and its recent establishment in South and West Africa, combined with detections in Northern African countries, as well as dispersion of the peach fruit fly, Bactrocera zonata in Egypt, Libya and possibly in the Middle East and Tunisia, sets all Mediterranean countries in alert. Apparently, there is an urgent need for cooperation among countries of Europe, Africa and the Middle East towards confronting invasive fruit flies. The 2nd International Meeting of TEAM (Tephritid Workers of Europe, Africa and the Middle East), that took place in Kolymbari, Greece from July 2 to 6 2012, provided the forum for knowledge exchange regarding fruit flies in the above area. The meeting included three plenary talks, three specific symposia and a round table on issues related to fruit fly invasion ranging from genetics and ecology to economics, policy and management. Additional oral and poster presentations covered several aspects of fruit fly biology, ecology, behaviour and management including major invasive fruit fly species. The current special issue of the Journal of Applied Entomology includes 9 papers that reflect part of the subjects discussed during the 2nd International TEAM meeting. Indeed, 3 of 9 papers address scientific questions regarding B. invadens (B. dorsalis group), including behavioural and physiological aspects of the oviposition decisions (Migani et al. 2013), demographic traits (Salum et al. 2013) and determination of non-host status for bananas (Cugala et al. 2013). There is an additional paper (Sookar et al. 2013) that presents an interesting approach regarding the management of B. cucurbitae (an invasive species in Africa and the Indian Ocean region). Three papers present interesting experimental results regarding the Mediterranean fruit fly, Ceratitis capitata, that seems to be a continuous issue for fruit fly workers in Europe, Africa and the Middle East. These papers deal with the susceptibility of kiwi fruit to medfly infestation (Papachristos et al. 2013), the dispersal ability of released flies in an area wide project (Navarro-Llopis et al. 2012) and the extension of ‘self –life’ for transgenic medfly determined for sterile insect releases (Ogaugwu et al. 2013). One additional paper covers aspects of the olive fly, Bactrocera oleae genetic changes during domestication under mass rearing conditions (Zygouridi et al. 2013). Last but not least, the paper of Lux (2013) presents a stochastic model of the on-farm behaviour of fruit flies towards establishing precision intensive management strategies. There are many who we would like to thank for their contribution to publish the current special issue that includes papers presented in the 2nd International TEAM meeting. We wish to thank (i) the editorial group of the Journal of Applied Entomology, especially Stefan Vidal and Christine Denys who supported our efforts in a very efficient and professional manner, (ii) all the authors and reviewers, and (iii) the International Atomic Energy Agency, the Decentralized Regional Administration of Crete, Greece and the University of Thessaly for providing financial support.
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