Incidence of natural control agents of the velvetbean caterpillar and response of its predators to insecticide treatments in Brazilian soybean fields
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/16647 |
Resumo: | Larvae of the velvetbean caterpillar Anticarsia gemmatalis Hubner were collected from soybean (Glycine max (L.) Merrill) to determine their population levels and percentage of infection by the fungus, Normuraea rileyi (Farlow) Samson. Seasonal population levels of larvae and adults of the carabid predator, Calosoma argentatus granulatum (Perty) were determined by pitfall trap collections. The relationship between resurgence of Anticarsia and populations of Calosoma, geocorids, and nabids as influenced by insecticides was studied. Fungus attack began in February during the pod development stage when the third generation of Anticarsia larvae were reaching a peak and 100% of larvae observed on foliage were infected three weeks later. Activity of Colosoma coincided closely with population levels of the third generation of Anticarsia. Geocorid and nabid populations were severely affected by monocrotophos and methyl parathion treatments whereas diflubenzuron, a chitin inhibitor, had no apparent deleterious effect. |
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Incidence of natural control agents of the velvetbean caterpillar and response of its predators to insecticide treatments in Brazilian soybean fieldsIncidência de inimigos naturais da lagarta da soja em lavouras de soja, no Rio Grande do Sul, e sua resposta ao tratamento com inseticidasColosoma argentatus granulatum; chemical control; Geocoris; soybean insects; Nabis; natural enemies; Nomuraea rileyiCalasoma argentatus granulatum; controle químico; Geocoris spp.; insetos da soja; Nabis spp.; inimigos naturais; Nomuraea rileyiLarvae of the velvetbean caterpillar Anticarsia gemmatalis Hubner were collected from soybean (Glycine max (L.) Merrill) to determine their population levels and percentage of infection by the fungus, Normuraea rileyi (Farlow) Samson. Seasonal population levels of larvae and adults of the carabid predator, Calosoma argentatus granulatum (Perty) were determined by pitfall trap collections. The relationship between resurgence of Anticarsia and populations of Calosoma, geocorids, and nabids as influenced by insecticides was studied. Fungus attack began in February during the pod development stage when the third generation of Anticarsia larvae were reaching a peak and 100% of larvae observed on foliage were infected three weeks later. Activity of Colosoma coincided closely with population levels of the third generation of Anticarsia. Geocorid and nabid populations were severely affected by monocrotophos and methyl parathion treatments whereas diflubenzuron, a chitin inhibitor, had no apparent deleterious effect.Lagartas de Anticarsia gemmatalis Hubner foram coletadas em soja (Glycine max (L.) Merrill) para determinar os níveis populacionais e a porcentagem de infecção pelo fungo-Nomuraea rileyi (Farlow) Samson. Os níveis populacionais de larvas e adultos do predador Colosoma argentatus granulatum (Perty) foram determinados utilizando armadilhas de solo. Foi estudada a relação entre a ressurgência de A. gemmatalis e os níveis populacionais dos predadores C. argentatus granulatum, Geocoris spp. e Nabis spp. sob influência de inseticidas. A infestação pelo fungo N. rileyi começou em fevereiro, durante o estágio de desenvolvimento dos legumes quando a terceira geração de lagartas alcançou o seu pico. Três semanas mais tarde 100% das lagartas observadas sobre as folhas estavam infectadas pelo fungo. A atividade de C argentatus granulatum coincidiu com o pico da terceira geração de A. gemmatalis. As populações de Geocoris spp. e Nabis spp. foram severamente afetadas com as aplicações de monocrotofos e metilparation, mas a aplicação diflubenzuron, um inibidor da formação de quitina, aparentemente não provocou efeito deletério.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraHeinrichs, E. A.Gastal, H. A. de O.Galileo, M. H.M.2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16647Pesquisa Agropecuaria Brasileira; v.14, n.1, jan. 1979; 79-87Pesquisa Agropecuária Brasileira; v.14, n.1, jan. 1979; 79-871678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/16647/10957info:eu-repo/semantics/openAccess2014-04-15T19:21:30Zoai:ojs.seer.sct.embrapa.br:article/16647Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T19:21:30Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Incidence of natural control agents of the velvetbean caterpillar and response of its predators to insecticide treatments in Brazilian soybean fields Incidência de inimigos naturais da lagarta da soja em lavouras de soja, no Rio Grande do Sul, e sua resposta ao tratamento com inseticidas |
title |
Incidence of natural control agents of the velvetbean caterpillar and response of its predators to insecticide treatments in Brazilian soybean fields |
spellingShingle |
Incidence of natural control agents of the velvetbean caterpillar and response of its predators to insecticide treatments in Brazilian soybean fields Heinrichs, E. A. Colosoma argentatus granulatum; chemical control; Geocoris; soybean insects; Nabis; natural enemies; Nomuraea rileyi Calasoma argentatus granulatum; controle químico; Geocoris spp.; insetos da soja; Nabis spp.; inimigos naturais; Nomuraea rileyi |
title_short |
Incidence of natural control agents of the velvetbean caterpillar and response of its predators to insecticide treatments in Brazilian soybean fields |
title_full |
Incidence of natural control agents of the velvetbean caterpillar and response of its predators to insecticide treatments in Brazilian soybean fields |
title_fullStr |
Incidence of natural control agents of the velvetbean caterpillar and response of its predators to insecticide treatments in Brazilian soybean fields |
title_full_unstemmed |
Incidence of natural control agents of the velvetbean caterpillar and response of its predators to insecticide treatments in Brazilian soybean fields |
title_sort |
Incidence of natural control agents of the velvetbean caterpillar and response of its predators to insecticide treatments in Brazilian soybean fields |
author |
Heinrichs, E. A. |
author_facet |
Heinrichs, E. A. Gastal, H. A. de O. Galileo, M. H.M. |
author_role |
author |
author2 |
Gastal, H. A. de O. Galileo, M. H.M. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Heinrichs, E. A. Gastal, H. A. de O. Galileo, M. H.M. |
dc.subject.por.fl_str_mv |
Colosoma argentatus granulatum; chemical control; Geocoris; soybean insects; Nabis; natural enemies; Nomuraea rileyi Calasoma argentatus granulatum; controle químico; Geocoris spp.; insetos da soja; Nabis spp.; inimigos naturais; Nomuraea rileyi |
topic |
Colosoma argentatus granulatum; chemical control; Geocoris; soybean insects; Nabis; natural enemies; Nomuraea rileyi Calasoma argentatus granulatum; controle químico; Geocoris spp.; insetos da soja; Nabis spp.; inimigos naturais; Nomuraea rileyi |
description |
Larvae of the velvetbean caterpillar Anticarsia gemmatalis Hubner were collected from soybean (Glycine max (L.) Merrill) to determine their population levels and percentage of infection by the fungus, Normuraea rileyi (Farlow) Samson. Seasonal population levels of larvae and adults of the carabid predator, Calosoma argentatus granulatum (Perty) were determined by pitfall trap collections. The relationship between resurgence of Anticarsia and populations of Calosoma, geocorids, and nabids as influenced by insecticides was studied. Fungus attack began in February during the pod development stage when the third generation of Anticarsia larvae were reaching a peak and 100% of larvae observed on foliage were infected three weeks later. Activity of Colosoma coincided closely with population levels of the third generation of Anticarsia. Geocorid and nabid populations were severely affected by monocrotophos and methyl parathion treatments whereas diflubenzuron, a chitin inhibitor, had no apparent deleterious effect. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-15 |
dc.type.none.fl_str_mv |
|
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://seer.sct.embrapa.br/index.php/pab/article/view/16647 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/16647 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/16647/10957 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.14, n.1, jan. 1979; 79-87 Pesquisa Agropecuária Brasileira; v.14, n.1, jan. 1979; 79-87 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416651364892672 |