Chitosan-Based Bioactive Formulations for the Control of Powdery Mildew in Viticulture

Grapevine is highly susceptible to fungal diseases, whose incidence and severity increase due to climate change. The present work focuses on the assessment of eight combinations of natural products with chitosan oligomers with fungicidal capacity that may be effective in the integrated control of po...

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Main Authors: David Ruano-Rosa, Eva Sánchez-Hernández, Rubén Baquero-Foz, Pablo Martín-Ramos, Jesús Martín-Gil, Sergio Torres-Sánchez, José Casanova-Gascón
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Agronomy
Subjects:
Online Access:https://www.mdpi.com/2073-4395/12/2/495
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author David Ruano-Rosa
Eva Sánchez-Hernández
Rubén Baquero-Foz
Pablo Martín-Ramos
Jesús Martín-Gil
Sergio Torres-Sánchez
José Casanova-Gascón
author_facet David Ruano-Rosa
Eva Sánchez-Hernández
Rubén Baquero-Foz
Pablo Martín-Ramos
Jesús Martín-Gil
Sergio Torres-Sánchez
José Casanova-Gascón
author_sort David Ruano-Rosa
collection DOAJ
description Grapevine is highly susceptible to fungal diseases, whose incidence and severity increase due to climate change. The present work focuses on the assessment of eight combinations of natural products with chitosan oligomers with fungicidal capacity that may be effective in the integrated control of powdery mildew, in compliance with Article 14 of the European Directive 2009/128/EC. Their efficacy was evaluated in field conditions against natural infections, in a plot with high disease pressure during a growing season (assaying both foliar or root application), and against overwintering inoculums (chasmothecia) through in vitro tests. In addition, their possible biostimulant capacities were evaluated based on harvest yields. Treatments based on chitosan oligomers in combination with secondary metabolites of <i>Streptomyces</i> spp. and chitosan oligomers combined with hydrolyzed gluten showed the best results in terms of disease control. Given the high efficacy of these formulations, comparable to that of conventional antifungals, they constitute an interesting alternative for the control of this disease whose treatment can, in some cases, represent almost half of the production costs.
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spelling doaj.art-211f4446a41a420f8fdcb2f6237890d62023-11-23T18:23:01ZengMDPI AGAgronomy2073-43952022-02-0112249510.3390/agronomy12020495Chitosan-Based Bioactive Formulations for the Control of Powdery Mildew in ViticultureDavid Ruano-Rosa0Eva Sánchez-Hernández1Rubén Baquero-Foz2Pablo Martín-Ramos3Jesús Martín-Gil4Sergio Torres-Sánchez5José Casanova-Gascón6Instituto Tecnológico Agrario de Castilla y León, Unidad de Cultivos Leñosos y Hortícolas, Ctra. De Burgos km 119, Finca Zamadueñas, 47071 Valladolid, SpainDepartment of Agricultural and Forestry Engineering, ETSIIAA, Universidad de Valladolid, Avenida de Madrid 44, 34004 Palencia, SpainInstituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), EPS, Universidad de Zaragoza, Carretera de Cuarte s/n, 22071 Huesca, SpainInstituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), EPS, Universidad de Zaragoza, Carretera de Cuarte s/n, 22071 Huesca, SpainDepartment of Agricultural and Forestry Engineering, ETSIIAA, Universidad de Valladolid, Avenida de Madrid 44, 34004 Palencia, SpainViñas del Vero S.A., Carretera Nacional 123 (km 3.7), Barbastro, 22300 Huesca, SpainInstituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), EPS, Universidad de Zaragoza, Carretera de Cuarte s/n, 22071 Huesca, SpainGrapevine is highly susceptible to fungal diseases, whose incidence and severity increase due to climate change. The present work focuses on the assessment of eight combinations of natural products with chitosan oligomers with fungicidal capacity that may be effective in the integrated control of powdery mildew, in compliance with Article 14 of the European Directive 2009/128/EC. Their efficacy was evaluated in field conditions against natural infections, in a plot with high disease pressure during a growing season (assaying both foliar or root application), and against overwintering inoculums (chasmothecia) through in vitro tests. In addition, their possible biostimulant capacities were evaluated based on harvest yields. Treatments based on chitosan oligomers in combination with secondary metabolites of <i>Streptomyces</i> spp. and chitosan oligomers combined with hydrolyzed gluten showed the best results in terms of disease control. Given the high efficacy of these formulations, comparable to that of conventional antifungals, they constitute an interesting alternative for the control of this disease whose treatment can, in some cases, represent almost half of the production costs.https://www.mdpi.com/2073-4395/12/2/495antifungalschasmotheciachitosan<i>Erysiphe necator</i>gluten<i>Streptomyces</i>
spellingShingle David Ruano-Rosa
Eva Sánchez-Hernández
Rubén Baquero-Foz
Pablo Martín-Ramos
Jesús Martín-Gil
Sergio Torres-Sánchez
José Casanova-Gascón
Chitosan-Based Bioactive Formulations for the Control of Powdery Mildew in Viticulture
Agronomy
antifungals
chasmothecia
chitosan
<i>Erysiphe necator</i>
gluten
<i>Streptomyces</i>
title Chitosan-Based Bioactive Formulations for the Control of Powdery Mildew in Viticulture
title_full Chitosan-Based Bioactive Formulations for the Control of Powdery Mildew in Viticulture
title_fullStr Chitosan-Based Bioactive Formulations for the Control of Powdery Mildew in Viticulture
title_full_unstemmed Chitosan-Based Bioactive Formulations for the Control of Powdery Mildew in Viticulture
title_short Chitosan-Based Bioactive Formulations for the Control of Powdery Mildew in Viticulture
title_sort chitosan based bioactive formulations for the control of powdery mildew in viticulture
topic antifungals
chasmothecia
chitosan
<i>Erysiphe necator</i>
gluten
<i>Streptomyces</i>
url https://www.mdpi.com/2073-4395/12/2/495
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