Phytopathologia Mediterranea (2000) 39, 225-231

Federico Mattia Stefanini, Giuseppe Surico and Guido Marchi (2000)
Longitudinal analysis of sympton expression in grapevines affected by esca
Phytopathologia Mediterranea 39 (1), 225-231
Abstract: An analysis of symptom expression in esca infected grapevines was performed by focusing on the dynamics of each plant. A parametric statistical model was proposed to evaluate the probability that a plant would show esca symptoms at given values for a relevant set of factors (year, presence of symptoms in the previous year, presence of plants with symptoms in the close neighborhood). The statistical tests of the hypotheses revealed that the considered factors explained a large amount of the observed variability. In particular, the state of plants in the close vicinity is one of those factors. Thus we found evidence that there was an association between plant vicinity and esca symptoms. Future developments of our model will include the factors field column and weather.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Guido Marchi

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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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