Immersion time of cysts in metidathion solution to control ground-pearl Eurhizococcus brasiliensis

Detalhes bibliográficos
Autor(a) principal: Hickel, Eduardo Rodrigues
Data de Publicação: 2021
Outros Autores: Schuck, Enio
Tipo de documento: Artigo
Idioma: por
Título da fonte: Agropecuária Catarinense (Online)
Texto Completo: https://publicacoes.epagri.sc.gov.br/rac/article/view/975
Resumo: The root immersion of grapevine seedlings in insecticide solution is a pre-planting techniquerecommended to control some eventual infestation of ground-pearl, Eurhizococcus brasiliensis (Hempel) (Homoptera: Margarodidae). However the minimum time in order to get 100% of insect mortality as well as the eventual insect protection against insecticide in clods must be determined. Clean and incrusted cysts of ground-pearl were immersed for zero, 1, 10, 60, and 120 seconds in a 0.08% a.i. metidathion solution. Incrusted cysts in fungi coat wereused to simulate the clod protection against insecticide. Each experimental unit, replicated three times, had 20clean cysts or almost 10 incrusted cysts. The number of death cysts was checked in 15 or 20 days intervals and was transformed in percent of insect mortality. The percentage of insect mortality was proportional to the immersion time in insecticide solution and the time of 120 seconds resulted in 100% mortality, for both clean and incrusted cysts. So 120 seconds is the minimum time for grapevine root immersion in metidathion solution in orderto control 100% of ground-pearl infestation.
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spelling Immersion time of cysts in metidathion solution to control ground-pearl Eurhizococcus brasiliensisTempo de imersão de cistos em solução de metidatiom para controle da pérola-da-terra, Eurhizococcus brasiliensisInsectainsetos de solocontrole químicouvaVitis.Insectasoil insectchemical controlgrapevitisThe root immersion of grapevine seedlings in insecticide solution is a pre-planting techniquerecommended to control some eventual infestation of ground-pearl, Eurhizococcus brasiliensis (Hempel) (Homoptera: Margarodidae). However the minimum time in order to get 100% of insect mortality as well as the eventual insect protection against insecticide in clods must be determined. Clean and incrusted cysts of ground-pearl were immersed for zero, 1, 10, 60, and 120 seconds in a 0.08% a.i. metidathion solution. Incrusted cysts in fungi coat wereused to simulate the clod protection against insecticide. Each experimental unit, replicated three times, had 20clean cysts or almost 10 incrusted cysts. The number of death cysts was checked in 15 or 20 days intervals and was transformed in percent of insect mortality. The percentage of insect mortality was proportional to the immersion time in insecticide solution and the time of 120 seconds resulted in 100% mortality, for both clean and incrusted cysts. So 120 seconds is the minimum time for grapevine root immersion in metidathion solution in orderto control 100% of ground-pearl infestation. A imersão de raízes de mudas de videira em solução inseticida é uma prática recomendada no pré--plantio para eliminar eventuais infestações pela pérola-da-terra, Eurhizococcus brasiliensis (Hempel). Contudo,falta determinar o tempo mínimo de imersão na calda inseticida para se obter 100% de mortalidade dos insetos e saber se estes, eventualmente protegidos por torrões de terra, sobrevivem à ação do inseticida. Com estes objetivos, cistos limpos e incrustados da pérola-da-terra foram imersos por zero, 1, 10, 60 e 120 segundos em solução formulada com metidatiom (0,08% do ingrediente ativo). Os cistos incrustados em casca fúngica foram utilizados em simulação à condição de proteção por torrões de terra. Cada unidade experimental, em três repetições, foicomposta de 20 cistos limpos ou cerca de dez cistos incrustados. A cada 15 ou 20 dias foi contado o número de cistos mortos que foi transformado em porcentagem de mortalidade. A mortalidade dos insetos foi diretamente proporcional ao tempo de imersão na calda inseticida, sendo que com 120 segundos obteve-se 100% de mortalidadede cistos, limpos ou incrustados, sendo este o tempo mínimo para a imersão de raízes de videira em calda inseticida de metidatiom. Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri2021-06-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://publicacoes.epagri.sc.gov.br/rac/article/view/975Agropecuária Catarinense Journal; Vol. 18 No. 2 (2005); 93-95Agropecuária Catarinense; v. 18 n. 2 (2005); 93-952525-60760103-0779reponame:Agropecuária Catarinense (Online)instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)instacron:EPAGRIporhttps://publicacoes.epagri.sc.gov.br/rac/article/view/975/872Copyright (c) 2005 Agropecuaria catarinensehttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessHickel, Eduardo RodriguesSchuck, Enio2021-06-23T14:20:42Zoai:ojs.publicacoes.epagri.sc.gov.br:article/975Revistahttps://publicacoes.epagri.sc.gov.br/RAC/indexPUBhttps://publicacoes.epagri.sc.gov.br/index.php/RAC/oaieditoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br2525-60760103-0779opendoar:2021-06-23T14:20:42Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)false
dc.title.none.fl_str_mv Immersion time of cysts in metidathion solution to control ground-pearl Eurhizococcus brasiliensis
Tempo de imersão de cistos em solução de metidatiom para controle da pérola-da-terra, Eurhizococcus brasiliensis
title Immersion time of cysts in metidathion solution to control ground-pearl Eurhizococcus brasiliensis
spellingShingle Immersion time of cysts in metidathion solution to control ground-pearl Eurhizococcus brasiliensis
Hickel, Eduardo Rodrigues
Insecta
insetos de solo
controle químico
uva
Vitis.
Insecta
soil insect
chemical control
grape
vitis
title_short Immersion time of cysts in metidathion solution to control ground-pearl Eurhizococcus brasiliensis
title_full Immersion time of cysts in metidathion solution to control ground-pearl Eurhizococcus brasiliensis
title_fullStr Immersion time of cysts in metidathion solution to control ground-pearl Eurhizococcus brasiliensis
title_full_unstemmed Immersion time of cysts in metidathion solution to control ground-pearl Eurhizococcus brasiliensis
title_sort Immersion time of cysts in metidathion solution to control ground-pearl Eurhizococcus brasiliensis
author Hickel, Eduardo Rodrigues
author_facet Hickel, Eduardo Rodrigues
Schuck, Enio
author_role author
author2 Schuck, Enio
author2_role author
dc.contributor.author.fl_str_mv Hickel, Eduardo Rodrigues
Schuck, Enio
dc.subject.por.fl_str_mv Insecta
insetos de solo
controle químico
uva
Vitis.
Insecta
soil insect
chemical control
grape
vitis
topic Insecta
insetos de solo
controle químico
uva
Vitis.
Insecta
soil insect
chemical control
grape
vitis
description The root immersion of grapevine seedlings in insecticide solution is a pre-planting techniquerecommended to control some eventual infestation of ground-pearl, Eurhizococcus brasiliensis (Hempel) (Homoptera: Margarodidae). However the minimum time in order to get 100% of insect mortality as well as the eventual insect protection against insecticide in clods must be determined. Clean and incrusted cysts of ground-pearl were immersed for zero, 1, 10, 60, and 120 seconds in a 0.08% a.i. metidathion solution. Incrusted cysts in fungi coat wereused to simulate the clod protection against insecticide. Each experimental unit, replicated three times, had 20clean cysts or almost 10 incrusted cysts. The number of death cysts was checked in 15 or 20 days intervals and was transformed in percent of insect mortality. The percentage of insect mortality was proportional to the immersion time in insecticide solution and the time of 120 seconds resulted in 100% mortality, for both clean and incrusted cysts. So 120 seconds is the minimum time for grapevine root immersion in metidathion solution in orderto control 100% of ground-pearl infestation.
publishDate 2021
dc.date.none.fl_str_mv 2021-06-23
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://publicacoes.epagri.sc.gov.br/rac/article/view/975
url https://publicacoes.epagri.sc.gov.br/rac/article/view/975
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://publicacoes.epagri.sc.gov.br/rac/article/view/975/872
dc.rights.driver.fl_str_mv Copyright (c) 2005 Agropecuaria catarinense
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2005 Agropecuaria catarinense
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
dc.source.none.fl_str_mv Agropecuária Catarinense Journal; Vol. 18 No. 2 (2005); 93-95
Agropecuária Catarinense; v. 18 n. 2 (2005); 93-95
2525-6076
0103-0779
reponame:Agropecuária Catarinense (Online)
instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron:EPAGRI
instname_str Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron_str EPAGRI
institution EPAGRI
reponame_str Agropecuária Catarinense (Online)
collection Agropecuária Catarinense (Online)
repository.name.fl_str_mv Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
repository.mail.fl_str_mv editoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br
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