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Timing of oomycete-specific fungicide application impacts the efficacy against fruit rot disease in arecanut

Fungicidal application has been the common and prime option to combat fruit rot disease (FRD) of arecanut (Areca catechu L.) under field conditions. However, the existence of virulent pathotypes, rapid spreading ability, and improper time of fungicide application has become a serious challenge. In t...

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Autores principales: Balanagouda, Patil, Shil, Sandip, Sridhara, Shankarappa, Pandian, R. Thava Prakasa, Thube, Shivaji Hausrao, Hegde, Vinayaka, Sayed, Shaban R. M., Casini, Rayan, Narayanaswamy, Hanumappa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10539582/
https://www.ncbi.nlm.nih.gov/pubmed/37780514
http://dx.doi.org/10.3389/fpls.2023.1237795
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author Balanagouda, Patil
Shil, Sandip
Sridhara, Shankarappa
Pandian, R. Thava Prakasa
Thube, Shivaji Hausrao
Hegde, Vinayaka
Sayed, Shaban R. M.
Casini, Rayan
Narayanaswamy, Hanumappa
author_facet Balanagouda, Patil
Shil, Sandip
Sridhara, Shankarappa
Pandian, R. Thava Prakasa
Thube, Shivaji Hausrao
Hegde, Vinayaka
Sayed, Shaban R. M.
Casini, Rayan
Narayanaswamy, Hanumappa
author_sort Balanagouda, Patil
collection PubMed
description Fungicidal application has been the common and prime option to combat fruit rot disease (FRD) of arecanut (Areca catechu L.) under field conditions. However, the existence of virulent pathotypes, rapid spreading ability, and improper time of fungicide application has become a serious challenge. In the present investigation, we assessed the efficacy of oomycete-specific fungicides under two approaches: (i) three fixed timings of fungicidal applications, i.e., pre-, mid-, and post-monsoon periods (EXPT1), and (ii) predefined different fruit stages, i.e., button, marble, and premature stages (EXPT2). Fungicidal efficacy in managing FRD was determined from evaluations of FRD severity, FRD incidence, and cumulative fallen nut rate (CFNR) by employing generalized linear mixed models (GLMMs). In EXPT1, all the tested fungicides reduced FRD disease levels by >65% when applied at pre- or mid-monsoon compared with untreated control, with statistical differences among fungicides and timings of application relative to infection. In EXPT2, the efficacy of fungicides was comparatively reduced when applied at predefined fruit/nut stages, with statistically non-significant differences among tested fungicides and fruit stages. A comprehensive analysis of both experiments recommends that the fungicidal application can be performed before the onset of monsoon for effective management of arecanut FRD. In conclusion, the timing of fungicidal application based on the monsoon period provides better control of FRD of arecanut than an application based on the developmental stages of fruit under field conditions.
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spelling pubmed-105395822023-09-30 Timing of oomycete-specific fungicide application impacts the efficacy against fruit rot disease in arecanut Balanagouda, Patil Shil, Sandip Sridhara, Shankarappa Pandian, R. Thava Prakasa Thube, Shivaji Hausrao Hegde, Vinayaka Sayed, Shaban R. M. Casini, Rayan Narayanaswamy, Hanumappa Front Plant Sci Plant Science Fungicidal application has been the common and prime option to combat fruit rot disease (FRD) of arecanut (Areca catechu L.) under field conditions. However, the existence of virulent pathotypes, rapid spreading ability, and improper time of fungicide application has become a serious challenge. In the present investigation, we assessed the efficacy of oomycete-specific fungicides under two approaches: (i) three fixed timings of fungicidal applications, i.e., pre-, mid-, and post-monsoon periods (EXPT1), and (ii) predefined different fruit stages, i.e., button, marble, and premature stages (EXPT2). Fungicidal efficacy in managing FRD was determined from evaluations of FRD severity, FRD incidence, and cumulative fallen nut rate (CFNR) by employing generalized linear mixed models (GLMMs). In EXPT1, all the tested fungicides reduced FRD disease levels by >65% when applied at pre- or mid-monsoon compared with untreated control, with statistical differences among fungicides and timings of application relative to infection. In EXPT2, the efficacy of fungicides was comparatively reduced when applied at predefined fruit/nut stages, with statistically non-significant differences among tested fungicides and fruit stages. A comprehensive analysis of both experiments recommends that the fungicidal application can be performed before the onset of monsoon for effective management of arecanut FRD. In conclusion, the timing of fungicidal application based on the monsoon period provides better control of FRD of arecanut than an application based on the developmental stages of fruit under field conditions. Frontiers Media S.A. 2023-09-14 /pmc/articles/PMC10539582/ /pubmed/37780514 http://dx.doi.org/10.3389/fpls.2023.1237795 Text en Copyright © 2023 Balanagouda, Shil, Sridhara, Pandian, Thube, Hegde, Sayed, Casini and Narayanaswamy https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Balanagouda, Patil
Shil, Sandip
Sridhara, Shankarappa
Pandian, R. Thava Prakasa
Thube, Shivaji Hausrao
Hegde, Vinayaka
Sayed, Shaban R. M.
Casini, Rayan
Narayanaswamy, Hanumappa
Timing of oomycete-specific fungicide application impacts the efficacy against fruit rot disease in arecanut
title Timing of oomycete-specific fungicide application impacts the efficacy against fruit rot disease in arecanut
title_full Timing of oomycete-specific fungicide application impacts the efficacy against fruit rot disease in arecanut
title_fullStr Timing of oomycete-specific fungicide application impacts the efficacy against fruit rot disease in arecanut
title_full_unstemmed Timing of oomycete-specific fungicide application impacts the efficacy against fruit rot disease in arecanut
title_short Timing of oomycete-specific fungicide application impacts the efficacy against fruit rot disease in arecanut
title_sort timing of oomycete-specific fungicide application impacts the efficacy against fruit rot disease in arecanut
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10539582/
https://www.ncbi.nlm.nih.gov/pubmed/37780514
http://dx.doi.org/10.3389/fpls.2023.1237795
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