terclim by ICS banner
IVES 9 IVES Conference Series 9 Utilizing ozone for the management of powdery mildew (Erysiphe necator Schwein.) in vineyards: potential and challenges

Utilizing ozone for the management of powdery mildew (Erysiphe necator Schwein.) in vineyards: potential and challenges

Abstract

Powdery mildew, caused by fungal pathogens, poses a significant threat to grapevines in the DOCa Rioja region. In efforts to improve control strategies while reducing reliance on conventional phytosanitary products, ozone could constitute a potential alternative. However, it has short persistence, thus requiring frequent treatments. This study aimed to assess the suitability of ozone as an active substance for controlling powdery mildew within a phytosanitary strategy aimed at reducing conventional phytosanitary product usage. The strategy integrating ozone with conventional products yielded powdery mildew levels comparable to conventional treatments in both disease incidence and severity. Nonetheless, employing a strategy solely based on ozone applications resulted in higher disease incidence and severity levels compared to the conventional treatment, particularly in the Tempranillo variety. These findings underscore the potential of ozone as a component of integrated disease management strategies in vineyards, offering an environmentally friendly alternative to traditional phytosanitary products. However, caution is warranted when relying solely on ozone, as observed efficacy variations across grape varieties suggest a need for tailored approaches. Further research is needed to optimize ozone application methods and explore its interactions with different grapevine cultivars and environmental conditions. In conclusion, while ozone shows promise as a tool for reducing conventional phytosanitary product usage in powdery mildew control, its effectiveness may be limited as a standalone method, particularly in certain grape varieties like Tempranillo. This study contributes to ongoing efforts to refine disease management strategies in viticulture, emphasizing the importance of integrated approaches for sustainable grape production.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Cuadrado-Galera Isabel1*, Varela Alejandro1, Arbizu-Milagro, Julia1, Tascón Alberto1, González-López Óscar1 ,Castillo-Ruiz Francisco José1, 2

1Universidad de La Rioja. Departamento de Agricultura y Alimentación. Facultad de Ciencia y Tecnología, C/ Madre de Dios, 53, 26006, Logroño, España
2Departamento de Ingeniería Rural, Construcciones Civiles y Proyectos de Ingeniería. E.T.S. de Ingeniería Agronómica y de Montes, Universidad de Córdoba, Campus de Rabanales, Edificio Leonardo Da Vinci, ctra. N-IV, km 396, 14014, Córdoba, España

Contact the author*

Keywords

incidence, severity, ozone, grapevines, phytosanitary treatment

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

CHARACTERIZATION OF THE AROMA PROFILE OF COMMERCIAL PROSECCO SPARKLING WINES

The typicality of a wine, as well as its aromatic identity, are attributes that are highly sought after and requested by the current market. It is therefore of considerable technological interest to investigate the aromatic aspects of specific wines and to identify the odorous substances involved.In this thesis work, the characterization of the aromatic composition of Prosecco wines available on the market with a price range between 7 and 13 euros was carried out. These wines came from three different areas of origin such as Valdobbiadene, Asolo and Treviso.

Read More

Soil management as a key factor on vineyard behavior under semiarid conditions: effects on soil biological activity, plant water and nutrient status, and grape yield and quality

Aims: Viticulture practices linked with soil management, as cover crops and deficit irrigation, can help to regulate the vineyard behavior reducing in most cases plant vigor and modifying plant water and nutrient status, and as a consequence, grape yield and quality. Also, these practices can modify the soil biological activity mostly related to microbiome diversity and functionality.

Read More

Mapping plant water status to indirectly assess variability in grape flavonoids and inform selective harvest decisions

Plant water stress affects grape (Vitis vinifera L.) berry composition and is variable in space due to variations in the physical environment at the growing site. Could we use water status maps as a sensitive tool to discriminate between harvest zones?

Read More

The role of molecular ecophysiology in terroir expression

Terroir is a complex concept which associates soil, climate, grape variety and cultural practices that include the training system and oenological techniques. It is a type of social construction with man at its centre. The typicality of a wine is also a social construction which is the result of an agreement among specialists vis à vis a given quality of the wine whose references are the wine’s origins (e.g. terroir) and taste.

Read More

Prove preliminari dl caratterizzazione del vino gutturnio dei colli piacentini

The “GuIturnio dei Colli Piacentini” V.Q.PR.D. results from the vinification of Barbera (55-70%) and Bonarda (30-40%) cultivars, grown in the hilly area of the Piacenza district, identified by the DM 31-07-93 art. 3.
The present work concerns the “zonation” of this area, constituted by 3 valleys Tidone (A), Nure (B) and Arda (C )

Read More