作者: Laura Mugnai , Guido Marchi , Stefano Di Marco , Giuseppe Surico , Francesca Peduto
DOI: 10.1400/52267
关键词:
摘要: Summary. This paper reports observations on the relationship between yearly incidence of manifest esca (i.e. diseased plants which show foliar symptoms), hidden (that remains asymptomatic throughout a growing season) and rainfall. Data from three vineyards (two in Tuscany one Emilia-Romagna, Italy) showed that rainfall May–July or only July was inversely related with esca. For two vineyards, TB Emilia-Romagna CAR-3 Tuscany, spatial pattern vines first year appearance symptoms also determined. The maps these indicated mostly occurred alone. suggests disease had its origin infected rooted cuttings triggered by inoculum aerially dispersed distant sources and/or occurring, at least hypothesis, soil.