Chemical Control of Mycosphaerella Leaf Disease on Eucalyptus dunnii in Southern Brazil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , |
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. |
id |
UFRJ-3_477cb157a2d7fc2d2bee52920372df32 |
---|---|
oai_identifier_str |
oai:scielo:S2179-80872018000200120 |
network_acronym_str |
UFRJ-3 |
network_name_str |
Floresta e Ambiente |
repository_id_str |
|
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|| |
_version_ |
1750128142065860608 |