Lethal and sublethal effects of methoxyfenozide on the development, survival and reproduction of the fall armyworm, <i>spodoptera frugiperda</i> (J. E. Smith) (Lepidoptera: Noctuid...

Autores
Zarate, N.; Díaz, O.; Martínez, A. M.; Figueroa, J. I.; Schneider, Marcela Inés; Smagghe, G.; Viñuela, E.; Budia, F.; Pineda, S.
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The lethal and sublethal effects of the ecdysone agonist methoxyfenozide on the fall armyworm, Spodoptera frugiperda (J. E. Smith), were investigated by feeding a methoxyfenozide-treated diet to fifth instars until pupation in doses corresponding to the LC10 and LC25 for the compound. Larval mortality reached 8% and 26% in the low and high concentration groups, respectively, on the seventh day of the experiment. A progressive larval mortality of 12% for the LC10 and 60% for the LC25 was observed before pupation. Treated larvae exhibited lower pupal weights, higher pupal mortality, presence of deformed pupae, and more deformed adults than untreated larvae. The incorporation of methoxyfenozide into the diet had a significant effect on the timing of larval development. The development period for males and females was about seven days longer than the controls for both concentrations tested. In contrast, the compound affected neither pupae nor adult longevity. Finally, S. frugiperda adults that resulted from fifth instars treated with methoxyfenozide were not affected in their mean cumulative number of eggs laid per female (fecundity), nor percentages of eggs hatched (fertility), or the sex ratio. Our results suggest that the combination of lethal and sublethal effects of methoxyfenozide may have important implications for the population dynamics of the fall armyworm.
Centro de Estudios Parasitológicos y de Vectores
Materia
Ciencias Agrarias
Ecdysone agonist
Insect growth regulator
Reproductive parameter
Reproducción
Crecimiento
Insectos Vectores
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/84471

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spelling Lethal and sublethal effects of methoxyfenozide on the development, survival and reproduction of the fall armyworm, <i>spodoptera frugiperda</i> (J. E. Smith) (Lepidoptera: Noctuidae)Zarate, N.Díaz, O.Martínez, A. M.Figueroa, J. I.Schneider, Marcela InésSmagghe, G.Viñuela, E.Budia, F.Pineda, S.Ciencias AgrariasEcdysone agonistInsect growth regulatorReproductive parameterReproducciónCrecimientoInsectos VectoresThe lethal and sublethal effects of the ecdysone agonist methoxyfenozide on the fall armyworm, Spodoptera frugiperda (J. E. Smith), were investigated by feeding a methoxyfenozide-treated diet to fifth instars until pupation in doses corresponding to the LC10 and LC25 for the compound. Larval mortality reached 8% and 26% in the low and high concentration groups, respectively, on the seventh day of the experiment. A progressive larval mortality of 12% for the LC10 and 60% for the LC25 was observed before pupation. Treated larvae exhibited lower pupal weights, higher pupal mortality, presence of deformed pupae, and more deformed adults than untreated larvae. The incorporation of methoxyfenozide into the diet had a significant effect on the timing of larval development. The development period for males and females was about seven days longer than the controls for both concentrations tested. In contrast, the compound affected neither pupae nor adult longevity. Finally, S. frugiperda adults that resulted from fifth instars treated with methoxyfenozide were not affected in their mean cumulative number of eggs laid per female (fecundity), nor percentages of eggs hatched (fertility), or the sex ratio. Our results suggest that the combination of lethal and sublethal effects of methoxyfenozide may have important implications for the population dynamics of the fall armyworm.Centro de Estudios Parasitológicos y de Vectores2011-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf129-137http://sedici.unlp.edu.ar/handle/10915/84471enginfo:eu-repo/semantics/altIdentifier/issn/1519-566Xinfo:eu-repo/semantics/altIdentifier/doi/10.1590/S1519-566X2011000100020info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/4.0/Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:10Zoai:sedici.unlp.edu.ar:10915/84471Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:10.447SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Lethal and sublethal effects of methoxyfenozide on the development, survival and reproduction of the fall armyworm, <i>spodoptera frugiperda</i> (J. E. Smith) (Lepidoptera: Noctuidae)
title Lethal and sublethal effects of methoxyfenozide on the development, survival and reproduction of the fall armyworm, <i>spodoptera frugiperda</i> (J. E. Smith) (Lepidoptera: Noctuidae)
spellingShingle Lethal and sublethal effects of methoxyfenozide on the development, survival and reproduction of the fall armyworm, <i>spodoptera frugiperda</i> (J. E. Smith) (Lepidoptera: Noctuidae)
Zarate, N.
Ciencias Agrarias
Ecdysone agonist
Insect growth regulator
Reproductive parameter
Reproducción
Crecimiento
Insectos Vectores
title_short Lethal and sublethal effects of methoxyfenozide on the development, survival and reproduction of the fall armyworm, <i>spodoptera frugiperda</i> (J. E. Smith) (Lepidoptera: Noctuidae)
title_full Lethal and sublethal effects of methoxyfenozide on the development, survival and reproduction of the fall armyworm, <i>spodoptera frugiperda</i> (J. E. Smith) (Lepidoptera: Noctuidae)
title_fullStr Lethal and sublethal effects of methoxyfenozide on the development, survival and reproduction of the fall armyworm, <i>spodoptera frugiperda</i> (J. E. Smith) (Lepidoptera: Noctuidae)
title_full_unstemmed Lethal and sublethal effects of methoxyfenozide on the development, survival and reproduction of the fall armyworm, <i>spodoptera frugiperda</i> (J. E. Smith) (Lepidoptera: Noctuidae)
title_sort Lethal and sublethal effects of methoxyfenozide on the development, survival and reproduction of the fall armyworm, <i>spodoptera frugiperda</i> (J. E. Smith) (Lepidoptera: Noctuidae)
dc.creator.none.fl_str_mv Zarate, N.
Díaz, O.
Martínez, A. M.
Figueroa, J. I.
Schneider, Marcela Inés
Smagghe, G.
Viñuela, E.
Budia, F.
Pineda, S.
author Zarate, N.
author_facet Zarate, N.
Díaz, O.
Martínez, A. M.
Figueroa, J. I.
Schneider, Marcela Inés
Smagghe, G.
Viñuela, E.
Budia, F.
Pineda, S.
author_role author
author2 Díaz, O.
Martínez, A. M.
Figueroa, J. I.
Schneider, Marcela Inés
Smagghe, G.
Viñuela, E.
Budia, F.
Pineda, S.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
Ecdysone agonist
Insect growth regulator
Reproductive parameter
Reproducción
Crecimiento
Insectos Vectores
topic Ciencias Agrarias
Ecdysone agonist
Insect growth regulator
Reproductive parameter
Reproducción
Crecimiento
Insectos Vectores
dc.description.none.fl_txt_mv The lethal and sublethal effects of the ecdysone agonist methoxyfenozide on the fall armyworm, Spodoptera frugiperda (J. E. Smith), were investigated by feeding a methoxyfenozide-treated diet to fifth instars until pupation in doses corresponding to the LC10 and LC25 for the compound. Larval mortality reached 8% and 26% in the low and high concentration groups, respectively, on the seventh day of the experiment. A progressive larval mortality of 12% for the LC10 and 60% for the LC25 was observed before pupation. Treated larvae exhibited lower pupal weights, higher pupal mortality, presence of deformed pupae, and more deformed adults than untreated larvae. The incorporation of methoxyfenozide into the diet had a significant effect on the timing of larval development. The development period for males and females was about seven days longer than the controls for both concentrations tested. In contrast, the compound affected neither pupae nor adult longevity. Finally, S. frugiperda adults that resulted from fifth instars treated with methoxyfenozide were not affected in their mean cumulative number of eggs laid per female (fecundity), nor percentages of eggs hatched (fertility), or the sex ratio. Our results suggest that the combination of lethal and sublethal effects of methoxyfenozide may have important implications for the population dynamics of the fall armyworm.
Centro de Estudios Parasitológicos y de Vectores
description The lethal and sublethal effects of the ecdysone agonist methoxyfenozide on the fall armyworm, Spodoptera frugiperda (J. E. Smith), were investigated by feeding a methoxyfenozide-treated diet to fifth instars until pupation in doses corresponding to the LC10 and LC25 for the compound. Larval mortality reached 8% and 26% in the low and high concentration groups, respectively, on the seventh day of the experiment. A progressive larval mortality of 12% for the LC10 and 60% for the LC25 was observed before pupation. Treated larvae exhibited lower pupal weights, higher pupal mortality, presence of deformed pupae, and more deformed adults than untreated larvae. The incorporation of methoxyfenozide into the diet had a significant effect on the timing of larval development. The development period for males and females was about seven days longer than the controls for both concentrations tested. In contrast, the compound affected neither pupae nor adult longevity. Finally, S. frugiperda adults that resulted from fifth instars treated with methoxyfenozide were not affected in their mean cumulative number of eggs laid per female (fecundity), nor percentages of eggs hatched (fertility), or the sex ratio. Our results suggest that the combination of lethal and sublethal effects of methoxyfenozide may have important implications for the population dynamics of the fall armyworm.
publishDate 2011
dc.date.none.fl_str_mv 2011-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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info:ar-repo/semantics/articulo
format article
status_str publishedVersion
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language eng
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info:eu-repo/semantics/altIdentifier/doi/10.1590/S1519-566X2011000100020
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc/4.0/
Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/4.0/
Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
dc.format.none.fl_str_mv application/pdf
129-137
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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