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Fungal Diseases in Two North-West Spain Vineyards: Relationship with Meteorological Conditions and Predictive Aerobiological Model

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Department of Plant Biology and Soil Sciences, Sciences Faculty of Ourense, University of Vigo, As Lagoas s/n, 32004 Ourense, Spain
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Earth Sciences Institute (ICT), Pole of the Faculty of Sciences University of Porto, 4169-007 Porto, Portugal
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Department of Botany, Higher Polytechnic School, University of Santiago of Compostela, 27002 Lugo, Spain
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Department of Botany, Biology Faculty, University of Santiago of Compostela, 15782 Santiago of Compostela, Spain
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Author to whom correspondence should be addressed.
Agronomy 2020, 10(2), 219; https://doi.org/10.3390/agronomy10020219
Received: 19 December 2019 / Revised: 21 January 2020 / Accepted: 28 January 2020 / Published: 3 February 2020
(This article belongs to the Special Issue Disease Control Strategies in Fruit Crops)
Grey mould, powdery mildew, and downy mildew are the most frequent fungal diseases among vineyards worldwide. In the present study, we analysed the influence of the fungi causing these diseases (Botrytis, Erysiphe, and Plasmopara, respectively) on two viticulture areas from North-western (NW) Spain during three growth seasons (2016, 2017, and 2018). The obtained results showed the predominant concentration of the Botrytis airborne spores, mainly from the beginning of the Inflorescence emerge phenological stage (S-5) until the end of the Flowering phenological stage (S-6). Erysiphe and Plasmopara airborne spore peak concentrations were more localised around Flowering (S-6) and Development of fruits (S-7) phenological stages. We applied a Spearman’s correlation test and a Principal Component Analysis to determine the influence of the meteorological parameters on the concentration of airborne spores. Taking into account the variables with the highest correlation coefficient, we developed multiple regression models to forecast the phytopathogenic fungal spore concentrations. The Botrytis model regression equation explained between 59.4–70.9% of spore concentration variability. The Erysiphe equation explained between 57.6–61% and the Plasmopara explained between 39.9–55.8%. In general, we found better prediction results for mean daily concentrations than sporadic spore peaks. View Full-Text
Keywords: Botrytis; Erysiphe; Plasmopara; vineyards; incidence; multiple linear regression Botrytis; Erysiphe; Plasmopara; vineyards; incidence; multiple linear regression
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MDPI and ACS Style

Cortiñas Rodríguez, J.A.; González-Fernández, E.; Fernández-González, M.; Vázquez-Ruiz, R.A.; Aira, M.J. Fungal Diseases in Two North-West Spain Vineyards: Relationship with Meteorological Conditions and Predictive Aerobiological Model. Agronomy 2020, 10, 219. https://doi.org/10.3390/agronomy10020219

AMA Style

Cortiñas Rodríguez JA, González-Fernández E, Fernández-González M, Vázquez-Ruiz RA, Aira MJ. Fungal Diseases in Two North-West Spain Vineyards: Relationship with Meteorological Conditions and Predictive Aerobiological Model. Agronomy. 2020; 10(2):219. https://doi.org/10.3390/agronomy10020219

Chicago/Turabian Style

Cortiñas Rodríguez, Jose A., Estefanía González-Fernández, María Fernández-González, Rosa A. Vázquez-Ruiz, and María J. Aira 2020. "Fungal Diseases in Two North-West Spain Vineyards: Relationship with Meteorological Conditions and Predictive Aerobiological Model" Agronomy 10, no. 2: 219. https://doi.org/10.3390/agronomy10020219

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