Tsagkarakis Antonios E, Afentoulis Dimitrios G, Matared Mohamed, Thanou Zoi N, Stamatakou Georgia D, Kalaitzaki Argyro P, Tzobanoglou Despina K, Goumas Dimitrios, Trantas Emmanouil, Zarboutis Ioannis, Perdikis Dionyssios Ch
Laboratory of Agricultural Zoology and Entomology, Agricultural University of Athens, Iera Odos, Athens, Greece.
Department of Sustainable Agriculture, Mediterranean Agronomic Institute of Chania, Alsyllion Agrokipion, Chania, Greece.
J Econ Entomol. 2018 Dec 14;111(6):2536-2545. doi: 10.1093/jee/toy239.
Studies of the species composition, seasonal appearance, and abundance of Auchenorrhyncha in olive crops is of paramount importance to reduce the potential of Xylella fastidiosa to invade new areas. As similar investigations had not previously been conducted in Greece, extensive surveys were undertaken in olive orchards located in three of the most important regions for olive production in central Greece (Fthiotida), south-central Greece (Attica), and southern Greece (Chania). Surveys took place over a 13-mo period, using Malaise traps examined on a monthly basis. Results showed high levels of species richness in the olive orchards, and the Auchenorrhyncha diversity varied among the regions surveyed. Most of the species listed as potential vectors of X. fastidiosa in Europe were found in relatively low numbers. Furthermore, many insects of the Deltocephalinae subfamily were found, whose behavior as vectors should be further studied. The dominant and most frequent species found in the three regions were tested and found not to be associated with transmission of the bacterium. This study may serve as an alert, showing that the most commonly found species differ from those identified in similar studies in Italy, and thus other species should be examined as potential vectors. The results of the present study provide new insights into the seasonal abundance and dynamics of potential vectors of X. fastidosa in several regions of Greece, and also provide information that may prove valuable for the effective containment and eradication of this threat.
对橄榄作物中沫蝉科昆虫的物种组成、季节性出现情况和丰度进行研究，对于降低木质部难养菌入侵新区域的可能性至关重要。由于此前希腊尚未进行过类似调查，因此在希腊中部（维奥蒂亚州）、希腊中南部（阿提卡）和希腊南部（干尼亚）三个最重要的橄榄生产地区的橄榄园中开展了广泛调查。调查持续了13个月，使用马氏网诱捕器并每月检查一次。结果表明，橄榄园中物种丰富度较高，且沫蝉科昆虫的多样性在各调查区域有所不同。在欧洲被列为木质部难养菌潜在传播媒介的大多数物种数量相对较少。此外，还发现了许多叶蝉亚科昆虫，其作为传播媒介的行为有待进一步研究。对在这三个区域中发现的优势且最常见的物种进行了测试，发现它们与该细菌的传播无关。本研究可起到警示作用，表明最常见的物种与意大利类似研究中所确定的物种不同，因此应将其他物种作为潜在传播媒介进行检查。本研究结果为希腊多个地区木质部难养菌潜在传播媒介的季节性丰度和动态提供了新见解，也为有效控制和根除这一威胁提供了可能有价值的信息。
