RT Journal Article T1 Fungal Diseases in Two North-West Spain Vineyards: Relationship with Meteorological Conditions and Predictive Aerobiological Model A1 Cortiñas Rodríguez, José A. A1 González Fernández, Estefanía A1 Fernández González, María A1 Vázquez Ruiz de Ocenda, Rosa Ana A1 Aira Rodríguez, María Jesús K1 Botrytis K1 Erysiphe K1 Plasmopara K1 Vineyards K1 Incidence K1 Multiple linear regression AB 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 PB MDPI YR 2020 FD 2020 LK http://hdl.handle.net/10347/21704 UL http://hdl.handle.net/10347/21704 LA eng NO 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 NO The authors thank to the Xunta de Galicia (Consellería de Educación, Universidade e Formación Profesional) the financial support for the recognition as Grupo de Referencia Competitivo de Investigación (GRC GI–1809 BIOAPLIC, ED431C 2019/07), the Agrupación Estratégica de Investigación BioReDes (ED431E 2018/09), the CITACA Strategic Partnership ED431E 2018/07 (Xunta de Galicia, Spain) and the grant number AGL2014-60412-Rofthe Economy and Competence Ministry of Spain Government. González–Fernández E. is supported by the FPU Formación de Profesorado Universitario grant from Ministerio de Ciencia, Innovación y Universidades DS Minerva RD 27 abr 2026