Assessment of a Postharvest Treatment with Pyrimethanil via Thermo-Nebulization in Controlling Storage Rots of Apples

Apples are very susceptible to infections from various fungal pathogens during the growing season due to prolonged exposure to environmental influences in the field. Therefore, a strict and targeted fungicide strategy is essential to protect fruit and trees. Increased environmental and health concer...

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Main Authors: Felix Büchele, Daniel A. Neuwald, Christian Scheer, Rachael M. Wood, Ralf T. Vögele, Jens N. Wünsche
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Agronomy
Subjects:
Online Access:https://www.mdpi.com/2073-4395/12/1/34
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author Felix Büchele
Daniel A. Neuwald
Christian Scheer
Rachael M. Wood
Ralf T. Vögele
Jens N. Wünsche
author_facet Felix Büchele
Daniel A. Neuwald
Christian Scheer
Rachael M. Wood
Ralf T. Vögele
Jens N. Wünsche
author_sort Felix Büchele
collection DOAJ
description Apples are very susceptible to infections from various fungal pathogens during the growing season due to prolonged exposure to environmental influences in the field. Therefore, a strict and targeted fungicide strategy is essential to protect fruit and trees. Increased environmental and health concerns and pathogen resistance have resulted in a rising demand to reduce fungicide usage and residues on marketed fruit. Thus, producers must develop new plant protection strategies to conform to the legal and social demands while still offering high-quality apples. This study assessed the efficacy of a post-harvest fungicide treatment with pyrimethanil via thermo-nebulization for controlling storage rots and compared the results to those of standard pre-harvest fungicide strategies. The results showed that a single post-harvest application of pyrimethanil successfully controlled storage rots and is comparable to strategies using multiple pre-harvest fungicide applications. The control of fungal rot was sustained even after 5 months of storage and 2 weeks of shelf life. Thermo-nebulization into the storage facility allowed for a lower dosage of fungicide to be used compared to pre-harvest applications, while still maintaining optimal rot control. Residue analyses showed that the post-harvest fungicide treatment did not exceed legal or retailer’s standards.
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spelling doaj.art-febd3f3e388d4891b4d4d5c430ec22992023-11-23T12:37:10ZengMDPI AGAgronomy2073-43952021-12-011213410.3390/agronomy12010034Assessment of a Postharvest Treatment with Pyrimethanil via Thermo-Nebulization in Controlling Storage Rots of ApplesFelix Büchele0Daniel A. Neuwald1Christian Scheer2Rachael M. Wood3Ralf T. Vögele4Jens N. Wünsche5Competence Centre for Fruit Growing at Lake Constance (KOB), 88213 Ravensburg, GermanyCompetence Centre for Fruit Growing at Lake Constance (KOB), 88213 Ravensburg, GermanyCompetence Centre for Fruit Growing at Lake Constance (KOB), 88213 Ravensburg, GermanyCompetence Centre for Fruit Growing at Lake Constance (KOB), 88213 Ravensburg, GermanyInstitute of Phytomedicine, Phytopathology University of Hohenheim, 70599 Stuttgart, GermanyInstitute Crop Science, Crop Physiology of Specialty Crops, University of Hohenheim, 70599 Stuttgart, GermanyApples are very susceptible to infections from various fungal pathogens during the growing season due to prolonged exposure to environmental influences in the field. Therefore, a strict and targeted fungicide strategy is essential to protect fruit and trees. Increased environmental and health concerns and pathogen resistance have resulted in a rising demand to reduce fungicide usage and residues on marketed fruit. Thus, producers must develop new plant protection strategies to conform to the legal and social demands while still offering high-quality apples. This study assessed the efficacy of a post-harvest fungicide treatment with pyrimethanil via thermo-nebulization for controlling storage rots and compared the results to those of standard pre-harvest fungicide strategies. The results showed that a single post-harvest application of pyrimethanil successfully controlled storage rots and is comparable to strategies using multiple pre-harvest fungicide applications. The control of fungal rot was sustained even after 5 months of storage and 2 weeks of shelf life. Thermo-nebulization into the storage facility allowed for a lower dosage of fungicide to be used compared to pre-harvest applications, while still maintaining optimal rot control. Residue analyses showed that the post-harvest fungicide treatment did not exceed legal or retailer’s standards.https://www.mdpi.com/2073-4395/12/1/34fungicidefungal pathogensresiduesresistancepollution<i>neofabraea</i> spp.
spellingShingle Felix Büchele
Daniel A. Neuwald
Christian Scheer
Rachael M. Wood
Ralf T. Vögele
Jens N. Wünsche
Assessment of a Postharvest Treatment with Pyrimethanil via Thermo-Nebulization in Controlling Storage Rots of Apples
Agronomy
fungicide
fungal pathogens
residues
resistance
pollution
<i>neofabraea</i> spp.
title Assessment of a Postharvest Treatment with Pyrimethanil via Thermo-Nebulization in Controlling Storage Rots of Apples
title_full Assessment of a Postharvest Treatment with Pyrimethanil via Thermo-Nebulization in Controlling Storage Rots of Apples
title_fullStr Assessment of a Postharvest Treatment with Pyrimethanil via Thermo-Nebulization in Controlling Storage Rots of Apples
title_full_unstemmed Assessment of a Postharvest Treatment with Pyrimethanil via Thermo-Nebulization in Controlling Storage Rots of Apples
title_short Assessment of a Postharvest Treatment with Pyrimethanil via Thermo-Nebulization in Controlling Storage Rots of Apples
title_sort assessment of a postharvest treatment with pyrimethanil via thermo nebulization in controlling storage rots of apples
topic fungicide
fungal pathogens
residues
resistance
pollution
<i>neofabraea</i> spp.
url https://www.mdpi.com/2073-4395/12/1/34
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