Preliminary evaluation of <i>Septoria urticae</i> Rob et Desm as a biological control agent of <i>Urtica urens</i> L

Autores
Dal Bello, Gustavo Mariano; Perelló, Analía Edith; Mónaco, Cecilia Inés
Año de publicación
1993
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Plants of Urtica urens L (annual nettle) showing symptoms of severe foliar necrosis were collected in the horticultural belt of the city of La Plata (Province of Buenos Aires, Argentina). The agent causing the disease was identified as Septoria urticae Rob et Desm. Due to the severe lesions caused by the pathogen, its potential as a biocontrol agent of U urens was studied. Routine phytopathological techniques were used in order to evaluate the bioherbicide potential of the pathogen in the greenhouse on plants of U urens and other species of the Urticaceae family, such as Boehmeria nivea (L) Gaud, Pilea cadierei Gagn et Guil and Parietaria officinalis L. Using variance analysis it was shown that the pathogen caused a high percentage of defoliation and a reduction in dry weight (DW) of nettle plants, apart from significantly diminishing the seed production (number and DW) in the greenhouse. B nivea and P cadierei did not show any symptoms of the disease, whereas P officinalis was slightly affected by the fungus. This study suggests that the pathogen could play an important role as a biocontrol agent since it reduces U urens production.
Des plantes de Urtica urens montrant des symptômes de nécrose foliaire sévère ont été ramassés dans la ceinture horticole de la ville de La Plata (Province de Buenos Aires, Argentina). L’agent qui cause la maladie a été identifié comme Septoria urticae Rob et Desm. À cause des lésions sévères provoquées par le pathogène, on a étudié son efficacité comme agent de lutte biologique contre U urens. Des techniques phytopathologiques de routine ont été employées pour évaluer le potentiel bioherbicide du pathogène en serre sur des plantes de U urens et d’autres espèces de la famille Urticaceae, telles que Boehmeria nivea (L) Gaud, Pilea cadierei Gagn et Guill et Parietaria officinalis L. L’analyse de variance a montré que le pathogène a causé un haut pourcentage de défoliation et une réduction du poids sec (DW) de plantes d’ortie, en plus d’une diminution significative de la production de semences en serre. B nivea et P cadierei n’ont pas montré de symptômes de la maladie, tandis que P officinalis a été légèrement affecté par le champignon. Cette étude suggère que le pathogène pourrait jouer un rôle important comme agent de biocontrôle, parce qu’il réduit la production de U urens.
Facultad de Ciencias Agrarias y Forestales
Materia
Ciencias Agrarias
Septoria urticae
Urtica urens
biological control
bioherbicide
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/123438

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spelling Preliminary evaluation of <i>Septoria urticae</i> Rob et Desm as a biological control agent of <i>Urtica urens</i> LÉvaluation préliminaire de Septoria urticae Rob et Desm comme agent de contrôle biologique de Urtica urens LDal Bello, Gustavo MarianoPerelló, Analía EdithMónaco, Cecilia InésCiencias AgrariasSeptoria urticaeUrtica urensbiological controlbioherbicidePlants of Urtica urens L (annual nettle) showing symptoms of severe foliar necrosis were collected in the horticultural belt of the city of La Plata (Province of Buenos Aires, Argentina). The agent causing the disease was identified as Septoria urticae Rob et Desm. Due to the severe lesions caused by the pathogen, its potential as a biocontrol agent of U urens was studied. Routine phytopathological techniques were used in order to evaluate the bioherbicide potential of the pathogen in the greenhouse on plants of U urens and other species of the Urticaceae family, such as Boehmeria nivea (L) Gaud, Pilea cadierei Gagn et Guil and Parietaria officinalis L. Using variance analysis it was shown that the pathogen caused a high percentage of defoliation and a reduction in dry weight (DW) of nettle plants, apart from significantly diminishing the seed production (number and DW) in the greenhouse. B nivea and P cadierei did not show any symptoms of the disease, whereas P officinalis was slightly affected by the fungus. This study suggests that the pathogen could play an important role as a biocontrol agent since it reduces U urens production.Des plantes de Urtica urens montrant des symptômes de nécrose foliaire sévère ont été ramassés dans la ceinture horticole de la ville de La Plata (Province de Buenos Aires, Argentina). L’agent qui cause la maladie a été identifié comme Septoria urticae Rob et Desm. À cause des lésions sévères provoquées par le pathogène, on a étudié son efficacité comme agent de lutte biologique contre U urens. Des techniques phytopathologiques de routine ont été employées pour évaluer le potentiel bioherbicide du pathogène en serre sur des plantes de U urens et d’autres espèces de la famille Urticaceae, telles que Boehmeria nivea (L) Gaud, Pilea cadierei Gagn et Guill et Parietaria officinalis L. L’analyse de variance a montré que le pathogène a causé un haut pourcentage de défoliation et une réduction du poids sec (DW) de plantes d’ortie, en plus d’une diminution significative de la production de semences en serre. B nivea et P cadierei n’ont pas montré de symptômes de la maladie, tandis que P officinalis a été légèrement affecté par le champignon. Cette étude suggère que le pathogène pourrait jouer un rôle important comme agent de biocontrôle, parce qu’il réduit la production de U urens.Facultad de Ciencias Agrarias y Forestales1993info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf121-124http://sedici.unlp.edu.ar/handle/10915/123438spainfo:eu-repo/semantics/altIdentifier/issn/0249-5627info:eu-repo/semantics/altIdentifier/issn/1297-9643info:eu-repo/semantics/altIdentifier/doi/10.1051/agro:19930206info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T11:01:23Zoai:sedici.unlp.edu.ar:10915/123438Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:01:23.536SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Preliminary evaluation of <i>Septoria urticae</i> Rob et Desm as a biological control agent of <i>Urtica urens</i> L
Évaluation préliminaire de Septoria urticae Rob et Desm comme agent de contrôle biologique de Urtica urens L
title Preliminary evaluation of <i>Septoria urticae</i> Rob et Desm as a biological control agent of <i>Urtica urens</i> L
spellingShingle Preliminary evaluation of <i>Septoria urticae</i> Rob et Desm as a biological control agent of <i>Urtica urens</i> L
Dal Bello, Gustavo Mariano
Ciencias Agrarias
Septoria urticae
Urtica urens
biological control
bioherbicide
title_short Preliminary evaluation of <i>Septoria urticae</i> Rob et Desm as a biological control agent of <i>Urtica urens</i> L
title_full Preliminary evaluation of <i>Septoria urticae</i> Rob et Desm as a biological control agent of <i>Urtica urens</i> L
title_fullStr Preliminary evaluation of <i>Septoria urticae</i> Rob et Desm as a biological control agent of <i>Urtica urens</i> L
title_full_unstemmed Preliminary evaluation of <i>Septoria urticae</i> Rob et Desm as a biological control agent of <i>Urtica urens</i> L
title_sort Preliminary evaluation of <i>Septoria urticae</i> Rob et Desm as a biological control agent of <i>Urtica urens</i> L
dc.creator.none.fl_str_mv Dal Bello, Gustavo Mariano
Perelló, Analía Edith
Mónaco, Cecilia Inés
author Dal Bello, Gustavo Mariano
author_facet Dal Bello, Gustavo Mariano
Perelló, Analía Edith
Mónaco, Cecilia Inés
author_role author
author2 Perelló, Analía Edith
Mónaco, Cecilia Inés
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
Septoria urticae
Urtica urens
biological control
bioherbicide
topic Ciencias Agrarias
Septoria urticae
Urtica urens
biological control
bioherbicide
dc.description.none.fl_txt_mv Plants of Urtica urens L (annual nettle) showing symptoms of severe foliar necrosis were collected in the horticultural belt of the city of La Plata (Province of Buenos Aires, Argentina). The agent causing the disease was identified as Septoria urticae Rob et Desm. Due to the severe lesions caused by the pathogen, its potential as a biocontrol agent of U urens was studied. Routine phytopathological techniques were used in order to evaluate the bioherbicide potential of the pathogen in the greenhouse on plants of U urens and other species of the Urticaceae family, such as Boehmeria nivea (L) Gaud, Pilea cadierei Gagn et Guil and Parietaria officinalis L. Using variance analysis it was shown that the pathogen caused a high percentage of defoliation and a reduction in dry weight (DW) of nettle plants, apart from significantly diminishing the seed production (number and DW) in the greenhouse. B nivea and P cadierei did not show any symptoms of the disease, whereas P officinalis was slightly affected by the fungus. This study suggests that the pathogen could play an important role as a biocontrol agent since it reduces U urens production.
Des plantes de Urtica urens montrant des symptômes de nécrose foliaire sévère ont été ramassés dans la ceinture horticole de la ville de La Plata (Province de Buenos Aires, Argentina). L’agent qui cause la maladie a été identifié comme Septoria urticae Rob et Desm. À cause des lésions sévères provoquées par le pathogène, on a étudié son efficacité comme agent de lutte biologique contre U urens. Des techniques phytopathologiques de routine ont été employées pour évaluer le potentiel bioherbicide du pathogène en serre sur des plantes de U urens et d’autres espèces de la famille Urticaceae, telles que Boehmeria nivea (L) Gaud, Pilea cadierei Gagn et Guill et Parietaria officinalis L. L’analyse de variance a montré que le pathogène a causé un haut pourcentage de défoliation et une réduction du poids sec (DW) de plantes d’ortie, en plus d’une diminution significative de la production de semences en serre. B nivea et P cadierei n’ont pas montré de symptômes de la maladie, tandis que P officinalis a été légèrement affecté par le champignon. Cette étude suggère que le pathogène pourrait jouer un rôle important comme agent de biocontrôle, parce qu’il réduit la production de U urens.
Facultad de Ciencias Agrarias y Forestales
description Plants of Urtica urens L (annual nettle) showing symptoms of severe foliar necrosis were collected in the horticultural belt of the city of La Plata (Province of Buenos Aires, Argentina). The agent causing the disease was identified as Septoria urticae Rob et Desm. Due to the severe lesions caused by the pathogen, its potential as a biocontrol agent of U urens was studied. Routine phytopathological techniques were used in order to evaluate the bioherbicide potential of the pathogen in the greenhouse on plants of U urens and other species of the Urticaceae family, such as Boehmeria nivea (L) Gaud, Pilea cadierei Gagn et Guil and Parietaria officinalis L. Using variance analysis it was shown that the pathogen caused a high percentage of defoliation and a reduction in dry weight (DW) of nettle plants, apart from significantly diminishing the seed production (number and DW) in the greenhouse. B nivea and P cadierei did not show any symptoms of the disease, whereas P officinalis was slightly affected by the fungus. This study suggests that the pathogen could play an important role as a biocontrol agent since it reduces U urens production.
publishDate 1993
dc.date.none.fl_str_mv 1993
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