Chemical Control of Mycosphaerella Leaf Disease on Eucalyptus dunnii in Southern Brazil

Detalhes bibliográficos
Autor(a) principal: Garrett,Alexandre Techy de Almeida
Data de Publicação: 2018
Outros Autores: Camargo,Mariane Bueno de, Garcia,Flávio Augusto de Oliveira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Floresta e Ambiente
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872018000200120
Resumo: ABSTRACT Mycosphaerella leaf disease (MLD) is a dangerous disease for eucalypt plantations; however little information is available regarding its control using fungicides in South America. In this study, we evaluated MLD control, and growth in young stands of Eucalyptus dunnii clones (C18 and C25). After two applications of azoxystrobin + cyproconazole (0.3 L/ha-1 and 0.45 L/ha-1), with a spraying volume of 200 L/ha -1, and trifloxystrobin + tebuconazole (0.5 L/ha-1 and 0.75 L/ha -1), with a spraying volume of 100 L/ha-1, mean severity reduction for apical branches of C18 was 74%. For middle branches, application of trifloxystrobin + tebuconazole at 0.5 L/ha-1 reduced severity by 27% in C18. While fungicide applications did not affect growth in height or root collar diameter, our results suggest that the application of fungicide can deter disease progression throughout the plant. Therefore, the monitoring of disease outbreaks is crucial to enable effective, early application.
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spelling Chemical Control of Mycosphaerella Leaf Disease on Eucalyptus dunnii in Southern Brazilsilviculturefungicideleaf spotABSTRACT Mycosphaerella leaf disease (MLD) is a dangerous disease for eucalypt plantations; however little information is available regarding its control using fungicides in South America. In this study, we evaluated MLD control, and growth in young stands of Eucalyptus dunnii clones (C18 and C25). After two applications of azoxystrobin + cyproconazole (0.3 L/ha-1 and 0.45 L/ha-1), with a spraying volume of 200 L/ha -1, and trifloxystrobin + tebuconazole (0.5 L/ha-1 and 0.75 L/ha -1), with a spraying volume of 100 L/ha-1, mean severity reduction for apical branches of C18 was 74%. For middle branches, application of trifloxystrobin + tebuconazole at 0.5 L/ha-1 reduced severity by 27% in C18. While fungicide applications did not affect growth in height or root collar diameter, our results suggest that the application of fungicide can deter disease progression throughout the plant. Therefore, the monitoring of disease outbreaks is crucial to enable effective, early application.Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872018000200120Floresta e Ambiente v.25 n.2 2018reponame:Floresta e Ambienteinstname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJ10.1590/2179-8087.015017info:eu-repo/semantics/openAccessGarrett,Alexandre Techy de AlmeidaCamargo,Mariane Bueno deGarcia,Flávio Augusto de Oliveiraeng2018-05-15T00:00:00Zoai:scielo:S2179-80872018000200120Revistahttps://www.floram.org/PUBhttps://old.scielo.br/oai/scielo-oai.phpfloramjournal@gmail.com||floram@ufrrj.br||2179-80871415-0980opendoar:2018-05-15T00:00Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.none.fl_str_mv Chemical Control of Mycosphaerella Leaf Disease on Eucalyptus dunnii in Southern Brazil
title Chemical Control of Mycosphaerella Leaf Disease on Eucalyptus dunnii in Southern Brazil
spellingShingle Chemical Control of Mycosphaerella Leaf Disease on Eucalyptus dunnii in Southern Brazil
Garrett,Alexandre Techy de Almeida
silviculture
fungicide
leaf spot
title_short Chemical Control of Mycosphaerella Leaf Disease on Eucalyptus dunnii in Southern Brazil
title_full Chemical Control of Mycosphaerella Leaf Disease on Eucalyptus dunnii in Southern Brazil
title_fullStr Chemical Control of Mycosphaerella Leaf Disease on Eucalyptus dunnii in Southern Brazil
title_full_unstemmed Chemical Control of Mycosphaerella Leaf Disease on Eucalyptus dunnii in Southern Brazil
title_sort Chemical Control of Mycosphaerella Leaf Disease on Eucalyptus dunnii in Southern Brazil
author Garrett,Alexandre Techy de Almeida
author_facet Garrett,Alexandre Techy de Almeida
Camargo,Mariane Bueno de
Garcia,Flávio Augusto de Oliveira
author_role author
author2 Camargo,Mariane Bueno de
Garcia,Flávio Augusto de Oliveira
author2_role author
author
dc.contributor.author.fl_str_mv Garrett,Alexandre Techy de Almeida
Camargo,Mariane Bueno de
Garcia,Flávio Augusto de Oliveira
dc.subject.por.fl_str_mv silviculture
fungicide
leaf spot
topic silviculture
fungicide
leaf spot
description ABSTRACT Mycosphaerella leaf disease (MLD) is a dangerous disease for eucalypt plantations; however little information is available regarding its control using fungicides in South America. In this study, we evaluated MLD control, and growth in young stands of Eucalyptus dunnii clones (C18 and C25). After two applications of azoxystrobin + cyproconazole (0.3 L/ha-1 and 0.45 L/ha-1), with a spraying volume of 200 L/ha -1, and trifloxystrobin + tebuconazole (0.5 L/ha-1 and 0.75 L/ha -1), with a spraying volume of 100 L/ha-1, mean severity reduction for apical branches of C18 was 74%. For middle branches, application of trifloxystrobin + tebuconazole at 0.5 L/ha-1 reduced severity by 27% in C18. While fungicide applications did not affect growth in height or root collar diameter, our results suggest that the application of fungicide can deter disease progression throughout the plant. Therefore, the monitoring of disease outbreaks is crucial to enable effective, early application.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872018000200120
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872018000200120
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/2179-8087.015017
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
publisher.none.fl_str_mv Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
dc.source.none.fl_str_mv Floresta e Ambiente v.25 n.2 2018
reponame:Floresta e Ambiente
instname:Universidade Federal do Rio de Janeiro (UFRJ)
instacron:UFRJ
instname_str Universidade Federal do Rio de Janeiro (UFRJ)
instacron_str UFRJ
institution UFRJ
reponame_str Floresta e Ambiente
collection Floresta e Ambiente
repository.name.fl_str_mv Floresta e Ambiente - Universidade Federal do Rio de Janeiro (UFRJ)
repository.mail.fl_str_mv floramjournal@gmail.com||floram@ufrrj.br||
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