Is Imidacloprid an Effective Alternative to Control Pyrethroi-resistant populations of Triatoma infestans in the Gran Chaco Ecoregion?

Autores
Carvajal, Guillermo; Picollo, Maria Ines; Toloza, Ariel Ceferino
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The prevention of Chagas disease is based primarily on the chemical control of Triatoma infestans (Klug) using pyrethroid insecticides. However, high resistance levels, correlated with control failures, have been detected in Argentina and Bolivia. A previous study at our laboratory found that imidacloprid could serve as an alternative to pyrethroid insecticides. We studied the delayed toxicity of imidacloprid and the influence of the blood feeding condition of the insect on the toxicity of this insecticide; we also studied the effectiveness of various commercial imidacloprid formulations against a pyrethroid-resistant T. infestans population from the Gran Chaco ecoregion. Variations in the toxic effects of imidacloprid were not observed up to 72 h after exposure and were not found to depend on the blood feeding condition of susceptible and resistant individuals. Of the three different studied formulations of imidacloprid on glass and filter paper, only the spot-on formulation was effective. This formulation was applied to pigeons at doses of 1, 5, 20 and 40 mg/bird. The nymphs that fed on pigeons treated with 20 mg or 40 mg of the formulation showed a higher mortality rate than the control group one day and seven days post-treatment (p < 0.01). A spot-on formulation of imidacloprid was effective against pyrethroid-resistant T. infestans populations at the laboratory level
Fil: Carvajal, Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina
Fil: Picollo, Maria Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina
Fil: Toloza, Ariel Ceferino. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina
Materia
Triatoma infestans
imidacloprid
formulation
neglected tropical disease
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/12706
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/12706
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network_name_str CONICET Digital (CONICET)
spelling Is Imidacloprid an Effective Alternative to Control Pyrethroi-resistant populations of Triatoma infestans in the Gran Chaco Ecoregion?Carvajal, GuillermoPicollo, Maria InesToloza, Ariel CeferinoTriatoma infestansimidaclopridformulationneglected tropical diseasehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The prevention of Chagas disease is based primarily on the chemical control of Triatoma infestans (Klug) using pyrethroid insecticides. However, high resistance levels, correlated with control failures, have been detected in Argentina and Bolivia. A previous study at our laboratory found that imidacloprid could serve as an alternative to pyrethroid insecticides. We studied the delayed toxicity of imidacloprid and the influence of the blood feeding condition of the insect on the toxicity of this insecticide; we also studied the effectiveness of various commercial imidacloprid formulations against a pyrethroid-resistant T. infestans population from the Gran Chaco ecoregion. Variations in the toxic effects of imidacloprid were not observed up to 72 h after exposure and were not found to depend on the blood feeding condition of susceptible and resistant individuals. Of the three different studied formulations of imidacloprid on glass and filter paper, only the spot-on formulation was effective. This formulation was applied to pigeons at doses of 1, 5, 20 and 40 mg/bird. The nymphs that fed on pigeons treated with 20 mg or 40 mg of the formulation showed a higher mortality rate than the control group one day and seven days post-treatment (p < 0.01). A spot-on formulation of imidacloprid was effective against pyrethroid-resistant T. infestans populations at the laboratory levelFil: Carvajal, Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; ArgentinaFil: Picollo, Maria Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; ArgentinaFil: Toloza, Ariel Ceferino. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; ArgentinaFundacao Oswaldo Cruz2014-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/12706Carvajal, Guillermo; Picollo, Maria Ines; Toloza, Ariel Ceferino; Is Imidacloprid an Effective Alternative to Control Pyrethroi-resistant populations of Triatoma infestans in the Gran Chaco Ecoregion?; Fundacao Oswaldo Cruz; Memórias Do Instituto Oswaldo Cruz; 109; 6; 9-2014; 1-60074-02761678-8060enginfo:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/9hy9ttinfo:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4238768/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:28:50Zoai:ri.conicet.gov.ar:11336/12706instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:28:50.407CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Is Imidacloprid an Effective Alternative to Control Pyrethroi-resistant populations of Triatoma infestans in the Gran Chaco Ecoregion?
title Is Imidacloprid an Effective Alternative to Control Pyrethroi-resistant populations of Triatoma infestans in the Gran Chaco Ecoregion?
spellingShingle Is Imidacloprid an Effective Alternative to Control Pyrethroi-resistant populations of Triatoma infestans in the Gran Chaco Ecoregion?
Carvajal, Guillermo
Triatoma infestans
imidacloprid
formulation
neglected tropical disease
title_short Is Imidacloprid an Effective Alternative to Control Pyrethroi-resistant populations of Triatoma infestans in the Gran Chaco Ecoregion?
title_full Is Imidacloprid an Effective Alternative to Control Pyrethroi-resistant populations of Triatoma infestans in the Gran Chaco Ecoregion?
title_fullStr Is Imidacloprid an Effective Alternative to Control Pyrethroi-resistant populations of Triatoma infestans in the Gran Chaco Ecoregion?
title_full_unstemmed Is Imidacloprid an Effective Alternative to Control Pyrethroi-resistant populations of Triatoma infestans in the Gran Chaco Ecoregion?
title_sort Is Imidacloprid an Effective Alternative to Control Pyrethroi-resistant populations of Triatoma infestans in the Gran Chaco Ecoregion?
dc.creator.none.fl_str_mv Carvajal, Guillermo
Picollo, Maria Ines
Toloza, Ariel Ceferino
author Carvajal, Guillermo
author_facet Carvajal, Guillermo
Picollo, Maria Ines
Toloza, Ariel Ceferino
author_role author
author2 Picollo, Maria Ines
Toloza, Ariel Ceferino
author2_role author
author
dc.subject.none.fl_str_mv Triatoma infestans
imidacloprid
formulation
neglected tropical disease
topic Triatoma infestans
imidacloprid
formulation
neglected tropical disease
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The prevention of Chagas disease is based primarily on the chemical control of Triatoma infestans (Klug) using pyrethroid insecticides. However, high resistance levels, correlated with control failures, have been detected in Argentina and Bolivia. A previous study at our laboratory found that imidacloprid could serve as an alternative to pyrethroid insecticides. We studied the delayed toxicity of imidacloprid and the influence of the blood feeding condition of the insect on the toxicity of this insecticide; we also studied the effectiveness of various commercial imidacloprid formulations against a pyrethroid-resistant T. infestans population from the Gran Chaco ecoregion. Variations in the toxic effects of imidacloprid were not observed up to 72 h after exposure and were not found to depend on the blood feeding condition of susceptible and resistant individuals. Of the three different studied formulations of imidacloprid on glass and filter paper, only the spot-on formulation was effective. This formulation was applied to pigeons at doses of 1, 5, 20 and 40 mg/bird. The nymphs that fed on pigeons treated with 20 mg or 40 mg of the formulation showed a higher mortality rate than the control group one day and seven days post-treatment (p < 0.01). A spot-on formulation of imidacloprid was effective against pyrethroid-resistant T. infestans populations at the laboratory level
Fil: Carvajal, Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina
Fil: Picollo, Maria Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina
Fil: Toloza, Ariel Ceferino. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas para la Defensa. Centro de Investigación de Plagas e Insecticidas; Argentina
description The prevention of Chagas disease is based primarily on the chemical control of Triatoma infestans (Klug) using pyrethroid insecticides. However, high resistance levels, correlated with control failures, have been detected in Argentina and Bolivia. A previous study at our laboratory found that imidacloprid could serve as an alternative to pyrethroid insecticides. We studied the delayed toxicity of imidacloprid and the influence of the blood feeding condition of the insect on the toxicity of this insecticide; we also studied the effectiveness of various commercial imidacloprid formulations against a pyrethroid-resistant T. infestans population from the Gran Chaco ecoregion. Variations in the toxic effects of imidacloprid were not observed up to 72 h after exposure and were not found to depend on the blood feeding condition of susceptible and resistant individuals. Of the three different studied formulations of imidacloprid on glass and filter paper, only the spot-on formulation was effective. This formulation was applied to pigeons at doses of 1, 5, 20 and 40 mg/bird. The nymphs that fed on pigeons treated with 20 mg or 40 mg of the formulation showed a higher mortality rate than the control group one day and seven days post-treatment (p < 0.01). A spot-on formulation of imidacloprid was effective against pyrethroid-resistant T. infestans populations at the laboratory level
publishDate 2014
dc.date.none.fl_str_mv 2014-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/12706
Carvajal, Guillermo; Picollo, Maria Ines; Toloza, Ariel Ceferino; Is Imidacloprid an Effective Alternative to Control Pyrethroi-resistant populations of Triatoma infestans in the Gran Chaco Ecoregion?; Fundacao Oswaldo Cruz; Memórias Do Instituto Oswaldo Cruz; 109; 6; 9-2014; 1-6
0074-0276
1678-8060
url http://hdl.handle.net/11336/12706
identifier_str_mv Carvajal, Guillermo; Picollo, Maria Ines; Toloza, Ariel Ceferino; Is Imidacloprid an Effective Alternative to Control Pyrethroi-resistant populations of Triatoma infestans in the Gran Chaco Ecoregion?; Fundacao Oswaldo Cruz; Memórias Do Instituto Oswaldo Cruz; 109; 6; 9-2014; 1-6
0074-0276
1678-8060
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/9hy9tt
info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4238768/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Fundacao Oswaldo Cruz
publisher.none.fl_str_mv Fundacao Oswaldo Cruz
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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