1,720,964 research outputs found
Pseudococcus comstocki (Kuwana) (Hemiptera Pseudococcidae) pest of peach in north-eastern Italy.
No full text
Pseudococcus comstocki (Kuwana) (Hemiptera, Pseudococcidae): una nuova minaccia per la frutticoltura veneta.
No full textNel 2004 Pseudococcus comstocki venne individuato, per la prima volta in Italia, nel Veronese. A seguito di ulteriori ritrovamenti della specie nei mesi successivi e della sua nota dannosità a carico dei fruttiferi, è stato attivato dalla Regione Veneto un programma di monitoraggio della specie e di studio sulla sua biologia. I primi dati hanno evidenziato una rapida diffusione della cocciniglia nel territorio regionale ed anche il suo insediamento in alcuni pescheti del Veronese indicando la necessita di ulteriori controlli e la messa a punto di appropriate strategie di difesa
Malattie del legno dell'actinidia: esperienze e risultati di tre anni d' indagine in Veneto
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Studi epidemiologici sul giallume europeo delle drupacee (ESFY) in impianti peschicoli del veronese
No full textDetection of European Stone Fruit Yellows Phytoplasma (ESFYP) in Homoptera insects and in wild stone fruit trees collected in peach orchards in Northern italy
No full textEuropean Stone Fruit Yellows (ESFY) has been reported in Italy with increasing frequency in peach orchards in the provinces of Forlì-Cesena, Ravenna, Rimini and Verona. The discovery of the natural vector of ESFY-phytoplasma, the psyllid Cacopsylla pruni, prompted us to investigate the presence of psyllids infected by ESFYP, as well as other potential vectors and alternative hosts, in various orchards in these provinces. The molecular diagnostic methods used (PCR-ELISA) made it possible to detect several C. pruni psyllids infected by ESFYP in this area, but no important secondary vectors were found in the peach orchards. Molecular tests were also made on wild plants surrounding the orchards, leading to ESFYP identiifcation in wild Prunus alone
- …
