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Stinca A.,University of Naples Federico II | Croce A.,The Second University of Naples | D'Auria G.,Laboratorio Fitopatologico | Santangelo A.,University of Naples Federico II | And 2 more authors.
Atti della Societa Toscana di Scienze Naturali, Memorie Serie B | Year: 2015

New data about the distribution of 86 alien species occurring in Campania region are presented. Vachellia karroo (Hayne) Banfi & Galasso is recorded for the first time, while Nicandra physalodes (L.) Gaertn. is confirmed for the region. For Rumex cristatus DC. Subsp. cristatus is specified the subspecies. Quercus ithaburensis Decne. Subsp. macrolepis (Kotschy) Hedge & Yalt. is excluded from the regional flora. Field surveys and literature studies led to the update of the status of naturalization concerning the following species: Broussonetia papyrifera (L.) Vent. (naturalized), Cyperus alternifolius L. Subsp. flabelliformis Kük. (casual), Eclipta prostrata (L.) L. (casual), Euphorbia nutans Lag. (casual), Ipomoea purpurea (L.) Roth (casual), Oenothera stucchii Soldano (naturalized), Paspalum distichum L. (invasive), Plumbago auriculata Lam. (casual), Setaria parviflora (Poir.) Kerguélen (naturalized), Solanum bonariense L. (casual). Source


Nishide Y.,National Institute of Agro biological science at Ohwashi | Fukano Y.,Tokyo University of Agriculture and Technology | Doi H.,Tokyo University of Agriculture and Technology | Satoh T.,Tokyo University of Agriculture and Technology | And 2 more authors.
European Journal of Entomology | Year: 2015

Ophraella communa (Coleoptera: Chrysomelidae) is an oligophagous herbivorous beetle that feeds on Ambrosia artemisiifolia. It is native to North America, but was accidentally introduced into Japan in 1995 and Europe in 2013. We analyzed partial DNA sequences of the mitochondrial cytochrome oxidase II gene for O. communa collected from 29 locations in the United States, Japan and Italy. Overall, the results of our analyses indicate that the introduced Japanese populations have lower genetic variation than the native populations. The sequences for the Italian specimens did not share haplotypes with Japanese specimens. These results indicate that the introduced Japanese populations originated from a single introduction, and that the Italian and Japanese populations have different origins. Source


Muller-Scharer H.,University of Fribourg | Lommen S.T.E.,University of Fribourg | Rossinelli M.,Servizio fitosanitario Canton Ticino | Boriani M.,Laboratorio Fitopatologico | And 2 more authors.
Weed Research | Year: 2014

Summary: We report the occurrence of the North American ragweed leaf beetle Ophraella communa in Europe. During our surveys to monitor populations of the invasive alien plant Ambrosia artemisiifolia in Europe, we found the beetle south of the Alps, in more than 130 sites in southern Switzerland (Ticino) and northern Italy (Lombardia, Piemonte and Emilia-Romagna). At sites where O. communa was present, up to 100% of the plants were attacked with damage levels high enough to completely defoliate and prevent flowering and seed set of most ragweed plants. That in its first year of discovery, O. communa was already found over a large area of c. 20 000 km2 and in all habitat types occupied by A. artemisiifolia reflects its great dispersal potential and wide habitat suitability. This oligophagous beetle is a successful biological control agent against A. artemisiifolia in China, but despite extensive host specificity tests, the risk of attack and the level of damage of sunflower under field conditions remain unclear. The recently launched COST Action on 'Sustainable management of Ambrosia artemisiifolia in Europe (SMARTER)' offers an ideal framework to respond quickly to the recent establishment of O. communa in Europe and to collect data that can help determine whether this event should be considered a troublesome introduction or whether it is likely to become the first case of a successful biological control of an invasive weed in continental Europe. © 2014 European Weed Research Society. Source


Brundu G.,University of Sassari | Stinca A.,University of Naples Federico II | Angius L.,Regione Sardegna | Bonanomi G.,University of Naples Federico II | And 6 more authors.
EPPO Bulletin | Year: 2012

This article provides general information on the distribution and presence of invasive macrophytes in Italy and describes and discusses two hydrophyte invasion case studies: Eichhornia crassipes in Sardinia and Pistia stratiotes in Campania. The two invasions took place in the same period, but mechanical removal intervention started only in Sardinia, even if costly and unsuccessful in the long term. Two main pathways are responsible for the presence of these two species in Italy, i.e. introduction as ornamentals and investigation and use for phytoremediation. The drafting of a national strategy on biological invasions is a priority for Italy and several specific action plans for species and habitats, as in the case of inland waters, are required. Furthermore, there is the need for regulations in the trade sector of invasive plant species and to evaluate the possibilities for biological control for established aquatic alien invaders. © 2012 OEPP/EPPO. Source

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