Recently, the pathogenicity of different Botryosphaeraceaespecies on grapevines has been reported from many Europeanand extra-European areas. During summer 2008, in a Sicilianvineyard located in the Marsala area (TP), we observed a declineinduced by Lasiodiplodia theobromae. The occurrence and quiterapid spread of the disease seemed to support the regional variabilityof the species in question, which is retained a tropical andsubtropical pathogen to different trees. In the last two years, thedecline syndrome has been observed in the following othergrape-growing areas of western and central Sicily: Alcamo andSalemi (TP), Montevago (AG) and Milena (CL). From decliningplants showing typical external and internal symptoms of spurs,canes and trunks, fungal isolates were obtained in pure and/ormixed culture and were identified, by morphological and molecularanalysis, as L. theobromae, Diplodia seriata and Neofusicoccumluteum. These results, even if preliminary, show the rapidspread of the grapevine decline by Botryosphaeraceae species inSicily confirming, at the same time, their different distribution inrelation to environmental conditions of the surveyed areas. Pathogenicitytests are in progress to ascertain the role of these fungiin the evoking of the decline syndrome.
|Numero di pagine||1|
|Stato di pubblicazione||Published - 2011|