Phytopathologia Mediterranea (2006) 45, S117-S126

Guido Marchi, Francesca Peduto, Laura Mugnai, Stefano Di Marco, Francesco Calzarano and Giuseppe Surico (2006)
Some observations on the relationship of manifest and hidden esca to rainfall
Phytopathologia Mediterranea 45 (Suppl.), S117-S126
Abstract: This paper reports observations on the relationship between the yearly incidence of manifest esca (i.e. diseased plants which show foliar symptoms), hidden esca (that which remains asymptomatic throughout a growing season) and rainfall. Data from three vineyards (two in Tuscany and one in Emilia-Romagna, Italy) showed that rainfall in May-July or only in July was inversely related with hidden esca. For two vineyards, TB in Emilia-Romagna and CAR-3 in Tuscany, the spatial pattern of diseased vines in the first year of appearance of the foliar esca symptoms was also determined. The maps of the vines in these vineyards indicated that diseased plants mostly occurred alone. This suggests that the disease had its origin in infected rooted cuttings or was triggered by inoculum aerially dispersed from distant sources and/or occurring, at least in hypothesis, in the soil.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Laura Mugnai, Guido Marchi

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology
environment - cropping system/rotation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Phaeomoniella chlamydospora	Grapevine (Vitis)	Italy
	Phaeoacremonium minimum	Grapevine (Vitis)	Italy
	Fomitiporia punctata	Grapevine (Vitis)	Italy