Valutazione di un modello matematico per la muffa grigia della vite

Giorgia Fedele, Tito Caffi, Vittorio Rossi, Elisa Gonzalez Dominguez, D. Mosetti, G. Bigot

Risultato della ricerca: Contributo in libroContributo a convegno

Abstract

Recently, a mechanistic model based on the life cycle of Botrytis cinerea was developed. This model considers weather conditions, vine growth stages and the main infection pathways. In this study, the model was validated in nine epidemics observed from 2015 to 2017, in three locations in Italy. At maturity, no botrytis bunch rot symptoms were observed in vineyards; however, shelf-life assays showed the presence of latent infections in mature berries, with max 13% disease severity. The infection severity assessed after shelf-life assays was used to classify the epidemics as: severe, intermediate and mild (observed severity). Epidemics were classified in these three group also based on the model output (predicted severity). The model correctly evaluated the 89% of the epidemics. The severity of epidemics was also compared to the control strategies adopted by grapevine growers; it was outlined that growers taken right decision in 33% of cases only. Therefore, the model could be used as a tool supporting decision-making for Botrytis bunch rot control; it predicts the infection risk during the main susceptible vine growth stages: i. flowering (BBCH 69); ii. pre- bunch closure (BBCH 77); iii. veraison (BBCH 83); iv. pre-harvest (BBCH < 89).
Titolo tradotto del contributo[Autom. eng. transl.] Evaluation of a mathematical model for gray vine mold
Lingua originaleItalian
Titolo della pubblicazione ospiteAtti Giornate fitopatologiche. Protezione delle piante, qualità, ambiente. Giornate fitopatologiche. Atti (Chianciano Terme, 6-9 marzo 2018). Vol. 2
Pagine581-590
Numero di pagine10
Stato di pubblicazionePubblicato - 2018
EventoGiornate fitopatologiche 2018 - Chianciano Terme (Siena)
Durata: 6 mar 20189 mar 2018

Convegno

ConvegnoGiornate fitopatologiche 2018
CittàChianciano Terme (Siena)
Periodo6/3/189/3/18

Keywords

  • Botrytis cinerea
  • control
  • difesa
  • disease model
  • epidemiologia
  • epidemiology
  • modelli matematici

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