Effect of Euxestophaga argentinensis (Hymenoptera, Figitidae) on corn-silk fly larvae Euxesta sp. in two sweet corn planting dates

Autores
Bertolaccini, Isabel; Curis, María Cecilia; Lutz, Alejandra; Favaro, Juan Carlos; Bollati, Luciana; Gallardo, Fabiana Edith
Año de publicación
2018
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Euxesta sp. (corn-silk fly) is a highly polyphagous insect genus that affects horticultural crops, fruit trees, and industrial crops. It causes huge economic losses in sweet corn (maize). Damage is caused by larvae feeding on corn silk, kernels and the remainder of the cob. Chemical treatments applied to maize crops are often not effective; therefore, efforts to control the fly must focus on finding alternative methods, such as biological control. The aim of this work was to determine the effects of Euxestophaga argentinensis (Hymenoptera, Figitidae) parasitism on corn-silk fly larvae, in two different planting dates: late winter and late summer. Samples were taken during spring and autumn in a commercial Bt sweet corn for two consecutive years. A total of 20 ears of corn per sample were collected at random and were placed in plastic trays, stored at 22 ± 2°C and 70 ± 5% RH and exposed to a 14:10 h photoperiod. Euxesta eluta and Euxesta mazorca pupae were separated, placed in separate plastic vials and periodically checked for emergence of adult flies and parasitoids. E. eluta has greater potential to damage sweet corn crops than E. mazorca. Parasitism was higher in late winter than in late summer, while only E. eluta was parasitized.
Euxesta spp. (mosca de la mazorca) es un género de insectos altamente polífagos que afectan los cultivos hortícolas, árboles frutales y cultivos industriales. En el maíz dulce causa altas pérdidas económicas. El daño es causado por la alimentación de la larva sobre los estigmas, granos y restos de la mazorca. Los tratamientos químicos aplicados a los cultivos del maíz frecuentemente no son efectivos, por lo tanto los esfuerzos en el control deben focalizarse en métodos alternativos, como el control biológico. El objetivo de este estudio fue determinar el efecto del parasitoide Euxestophaga argentinensis (Hymenoptera, Figitidae) sobre las larvas de la mosca, en dos épocas de siembra: fin de invierno y fin de verano, en lotes comerciales de maíz dulce Bt, en dos años consecutivos. Un total de 20 mazorcas de maíz por muestreo fueron recolectados al azar y se colocaron en bolsas plásticas herméticas y fueron mantenidos en laboratorio a 22 ± 2°C, 70 ± 5% RH y a 14:10 h de luz:oscuridad. Las pupas de E. eluta y E. mazorca fueron colocadas individualmente en tubos plásticos y revisados periódicamente hasta la emergencia del adulto de la mosca o del parasitoide. E. eluta tiene mayor potencial de daño que E. mazorca en los cultivos de maíz dulce. El parasitismo fue mayor en los cultivos sembrados en verano que en los de invierno tardío y solo E. eluta fue parasitada.
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
Euxesta sp.
maize
parasitoid
biological control
mosca de la mazorca
maíz
parasitoide
control biológico
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/71156

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network_name_str SEDICI (UNLP)
spelling Effect of Euxestophaga argentinensis (Hymenoptera, Figitidae) on corn-silk fly larvae Euxesta sp. in two sweet corn planting datesEfecto de Euxestophaga argentinensis (Hymenoptera, Figitidae) sobre larvas de la mosca de la mazorca Euxesta sp. en dos fechas de siembra de maíz dulceBertolaccini, IsabelCuris, María CeciliaLutz, AlejandraFavaro, Juan CarlosBollati, LucianaGallardo, Fabiana EdithCiencias NaturalesEuxesta sp.maizeparasitoidbiological controlmosca de la mazorcamaízparasitoidecontrol biológicoEuxesta sp. (corn-silk fly) is a highly polyphagous insect genus that affects horticultural crops, fruit trees, and industrial crops. It causes huge economic losses in sweet corn (maize). Damage is caused by larvae feeding on corn silk, kernels and the remainder of the cob. Chemical treatments applied to maize crops are often not effective; therefore, efforts to control the fly must focus on finding alternative methods, such as biological control. The aim of this work was to determine the effects of Euxestophaga argentinensis (Hymenoptera, Figitidae) parasitism on corn-silk fly larvae, in two different planting dates: late winter and late summer. Samples were taken during spring and autumn in a commercial Bt sweet corn for two consecutive years. A total of 20 ears of corn per sample were collected at random and were placed in plastic trays, stored at 22 ± 2°C and 70 ± 5% RH and exposed to a 14:10 h photoperiod. Euxesta eluta and Euxesta mazorca pupae were separated, placed in separate plastic vials and periodically checked for emergence of adult flies and parasitoids. E. eluta has greater potential to damage sweet corn crops than E. mazorca. Parasitism was higher in late winter than in late summer, while only E. eluta was parasitized.Euxesta spp. (mosca de la mazorca) es un género de insectos altamente polífagos que afectan los cultivos hortícolas, árboles frutales y cultivos industriales. En el maíz dulce causa altas pérdidas económicas. El daño es causado por la alimentación de la larva sobre los estigmas, granos y restos de la mazorca. Los tratamientos químicos aplicados a los cultivos del maíz frecuentemente no son efectivos, por lo tanto los esfuerzos en el control deben focalizarse en métodos alternativos, como el control biológico. El objetivo de este estudio fue determinar el efecto del parasitoide Euxestophaga argentinensis (Hymenoptera, Figitidae) sobre las larvas de la mosca, en dos épocas de siembra: fin de invierno y fin de verano, en lotes comerciales de maíz dulce Bt, en dos años consecutivos. Un total de 20 mazorcas de maíz por muestreo fueron recolectados al azar y se colocaron en bolsas plásticas herméticas y fueron mantenidos en laboratorio a 22 ± 2°C, 70 ± 5% RH y a 14:10 h de luz:oscuridad. Las pupas de E. eluta y E. mazorca fueron colocadas individualmente en tubos plásticos y revisados periódicamente hasta la emergencia del adulto de la mosca o del parasitoide. E. eluta tiene mayor potencial de daño que E. mazorca en los cultivos de maíz dulce. El parasitismo fue mayor en los cultivos sembrados en verano que en los de invierno tardío y solo E. eluta fue parasitada.Facultad de Ciencias Naturales y Museo2018-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf185-190http://sedici.unlp.edu.ar/handle/10915/71156spainfo:eu-repo/semantics/altIdentifier/url/http://agro-ciencia.cl/web/wp-content/uploads/2018/11/AC-1782.-Euxesta.-pdf.pdfinfo:eu-repo/semantics/altIdentifier/issn/0719-3890info:eu-repo/semantics/altIdentifier/hdl/11746/8631info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:11:30Zoai:sedici.unlp.edu.ar:10915/71156Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:11:30.448SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Effect of Euxestophaga argentinensis (Hymenoptera, Figitidae) on corn-silk fly larvae Euxesta sp. in two sweet corn planting dates
Efecto de Euxestophaga argentinensis (Hymenoptera, Figitidae) sobre larvas de la mosca de la mazorca Euxesta sp. en dos fechas de siembra de maíz dulce
title Effect of Euxestophaga argentinensis (Hymenoptera, Figitidae) on corn-silk fly larvae Euxesta sp. in two sweet corn planting dates
spellingShingle Effect of Euxestophaga argentinensis (Hymenoptera, Figitidae) on corn-silk fly larvae Euxesta sp. in two sweet corn planting dates
Bertolaccini, Isabel
Ciencias Naturales
Euxesta sp.
maize
parasitoid
biological control
mosca de la mazorca
maíz
parasitoide
control biológico
title_short Effect of Euxestophaga argentinensis (Hymenoptera, Figitidae) on corn-silk fly larvae Euxesta sp. in two sweet corn planting dates
title_full Effect of Euxestophaga argentinensis (Hymenoptera, Figitidae) on corn-silk fly larvae Euxesta sp. in two sweet corn planting dates
title_fullStr Effect of Euxestophaga argentinensis (Hymenoptera, Figitidae) on corn-silk fly larvae Euxesta sp. in two sweet corn planting dates
title_full_unstemmed Effect of Euxestophaga argentinensis (Hymenoptera, Figitidae) on corn-silk fly larvae Euxesta sp. in two sweet corn planting dates
title_sort Effect of Euxestophaga argentinensis (Hymenoptera, Figitidae) on corn-silk fly larvae Euxesta sp. in two sweet corn planting dates
dc.creator.none.fl_str_mv Bertolaccini, Isabel
Curis, María Cecilia
Lutz, Alejandra
Favaro, Juan Carlos
Bollati, Luciana
Gallardo, Fabiana Edith
author Bertolaccini, Isabel
author_facet Bertolaccini, Isabel
Curis, María Cecilia
Lutz, Alejandra
Favaro, Juan Carlos
Bollati, Luciana
Gallardo, Fabiana Edith
author_role author
author2 Curis, María Cecilia
Lutz, Alejandra
Favaro, Juan Carlos
Bollati, Luciana
Gallardo, Fabiana Edith
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Euxesta sp.
maize
parasitoid
biological control
mosca de la mazorca
maíz
parasitoide
control biológico
topic Ciencias Naturales
Euxesta sp.
maize
parasitoid
biological control
mosca de la mazorca
maíz
parasitoide
control biológico
dc.description.none.fl_txt_mv Euxesta sp. (corn-silk fly) is a highly polyphagous insect genus that affects horticultural crops, fruit trees, and industrial crops. It causes huge economic losses in sweet corn (maize). Damage is caused by larvae feeding on corn silk, kernels and the remainder of the cob. Chemical treatments applied to maize crops are often not effective; therefore, efforts to control the fly must focus on finding alternative methods, such as biological control. The aim of this work was to determine the effects of Euxestophaga argentinensis (Hymenoptera, Figitidae) parasitism on corn-silk fly larvae, in two different planting dates: late winter and late summer. Samples were taken during spring and autumn in a commercial Bt sweet corn for two consecutive years. A total of 20 ears of corn per sample were collected at random and were placed in plastic trays, stored at 22 ± 2°C and 70 ± 5% RH and exposed to a 14:10 h photoperiod. Euxesta eluta and Euxesta mazorca pupae were separated, placed in separate plastic vials and periodically checked for emergence of adult flies and parasitoids. E. eluta has greater potential to damage sweet corn crops than E. mazorca. Parasitism was higher in late winter than in late summer, while only E. eluta was parasitized.
Euxesta spp. (mosca de la mazorca) es un género de insectos altamente polífagos que afectan los cultivos hortícolas, árboles frutales y cultivos industriales. En el maíz dulce causa altas pérdidas económicas. El daño es causado por la alimentación de la larva sobre los estigmas, granos y restos de la mazorca. Los tratamientos químicos aplicados a los cultivos del maíz frecuentemente no son efectivos, por lo tanto los esfuerzos en el control deben focalizarse en métodos alternativos, como el control biológico. El objetivo de este estudio fue determinar el efecto del parasitoide Euxestophaga argentinensis (Hymenoptera, Figitidae) sobre las larvas de la mosca, en dos épocas de siembra: fin de invierno y fin de verano, en lotes comerciales de maíz dulce Bt, en dos años consecutivos. Un total de 20 mazorcas de maíz por muestreo fueron recolectados al azar y se colocaron en bolsas plásticas herméticas y fueron mantenidos en laboratorio a 22 ± 2°C, 70 ± 5% RH y a 14:10 h de luz:oscuridad. Las pupas de E. eluta y E. mazorca fueron colocadas individualmente en tubos plásticos y revisados periódicamente hasta la emergencia del adulto de la mosca o del parasitoide. E. eluta tiene mayor potencial de daño que E. mazorca en los cultivos de maíz dulce. El parasitismo fue mayor en los cultivos sembrados en verano que en los de invierno tardío y solo E. eluta fue parasitada.
Facultad de Ciencias Naturales y Museo
description Euxesta sp. (corn-silk fly) is a highly polyphagous insect genus that affects horticultural crops, fruit trees, and industrial crops. It causes huge economic losses in sweet corn (maize). Damage is caused by larvae feeding on corn silk, kernels and the remainder of the cob. Chemical treatments applied to maize crops are often not effective; therefore, efforts to control the fly must focus on finding alternative methods, such as biological control. The aim of this work was to determine the effects of Euxestophaga argentinensis (Hymenoptera, Figitidae) parasitism on corn-silk fly larvae, in two different planting dates: late winter and late summer. Samples were taken during spring and autumn in a commercial Bt sweet corn for two consecutive years. A total of 20 ears of corn per sample were collected at random and were placed in plastic trays, stored at 22 ± 2°C and 70 ± 5% RH and exposed to a 14:10 h photoperiod. Euxesta eluta and Euxesta mazorca pupae were separated, placed in separate plastic vials and periodically checked for emergence of adult flies and parasitoids. E. eluta has greater potential to damage sweet corn crops than E. mazorca. Parasitism was higher in late winter than in late summer, while only E. eluta was parasitized.
publishDate 2018
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