Morphological Variability of the Cotton Boll Weevil in the Principal Cotton-Growing Region of Argentina

Autores
Garcia, Carolina Vanesa; Tcach, Mauricio Alfredo; Simonella, Maria Alejandra; Almada, Melina Soledad; González, Julio; Lanzavecchia, Silvia Beatriz; Nussenbaum, Ana Laura
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The cotton boll weevil (Anthonomus grandis grandis Boheman) (Coleoptera: Curculionidae) is the main pest of the cotton (Gossypium hirsutum Linnaeus) (Malvaceae) crop in South America. First reported in Argentina in 1993, it rapidly dispersed throughout the main cotton-growing region, severely impacting the crop production. However, little is known about the external morphometry and variability of these populations. The main objective of the present study was to assess morphological variability among five boll weevil populations collected in the main cotton-growing region of Argentina during two seasons (winter and growing seasons) using traditional morphometry. Nine morphological variables were measured in 30 individuals per population. Sexual dimorphism was not detected for any of the variables. Significant differences among populations were found based on location and season of collection. Principal component analysis (PCA) and a dendrogram revealed that winter populations clustered together, showing intermediate morphological values and low variability across the three sampled localities. Populations collected during the growing season grouped into two distinct clusters: one comprising populations from the Chaco province and the other from the remaining locations. One-way ANOVA further supported these patterns, indicating significant differences among Anthonomus grandis grandis populations for “elytra length” and “total body length” variables. The results were discussed in relation to climatic conditions, cotton management practices, and alternative food sources, providing morphological records that could help optimize control strategies. Larger individuals, likely key reproducers, may require early control, whereas smaller ones may reflect suboptimal development due to limited nutritional resources or high intraspecific competition. These traits may also affect the survival of overwintering populations. Overall, these findings contribute to a better understanding of boll weevil population dynamics and their implications for integrated pest management.
EEA Sáenz Peña
Fil: García, Carolina V. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Sáenz Peña; Argentina
Fil: Tcach, Mauricio Alfredo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Sáenz Peña; Argentina
Fil: Simonella, Maria Alejandra. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Sáenz Peña; Argentina
Fil: Almada, Melina Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Reconquista; Argentina
Fil: Almada, Melina Soledad. Universidad Católica de Santa Fé. Facultad de Ciencias Agropecuarias; Argentina
Fil: González, Julio. Universidad Nacional del Chaco Austral; Argentina
Fil: Lanzavecchia, Silvia Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina
Fil: Lanzavecchia, Silvia Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Fil: Lanzavecchia, Silvia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Nussenbaum, Ana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina
Fil: Nussenbaum, Ana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Fil: Nussenbaum, Ana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Nussenbaum, Ana Laura. Universidad del Salvador. Facultad de Ciencias Agronómicas y Veterinarias; Argentina
Fuente
Entomologia Experimentalis et Applicata : 1-12 (First published: 1 October 2025)
Materia
Algodón
Plagas de Plantas
Gestión de Lucha Integrada
Argentina
Cotton
Plant Pests
Curculionidae
Gossypium hirsutum
Anthonomus grandis
Integrated Pest Management
Weevils
Nivel de accesibilidad
acceso restringido
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/24074
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network_name_str INTA Digital (INTA)
spelling Morphological Variability of the Cotton Boll Weevil in the Principal Cotton-Growing Region of ArgentinaGarcia, Carolina VanesaTcach, Mauricio AlfredoSimonella, Maria AlejandraAlmada, Melina SoledadGonzález, JulioLanzavecchia, Silvia BeatrizNussenbaum, Ana LauraAlgodónPlagas de PlantasGestión de Lucha IntegradaArgentinaCottonPlant PestsCurculionidaeGossypium hirsutumAnthonomus grandisIntegrated Pest ManagementWeevilsThe cotton boll weevil (Anthonomus grandis grandis Boheman) (Coleoptera: Curculionidae) is the main pest of the cotton (Gossypium hirsutum Linnaeus) (Malvaceae) crop in South America. First reported in Argentina in 1993, it rapidly dispersed throughout the main cotton-growing region, severely impacting the crop production. However, little is known about the external morphometry and variability of these populations. The main objective of the present study was to assess morphological variability among five boll weevil populations collected in the main cotton-growing region of Argentina during two seasons (winter and growing seasons) using traditional morphometry. Nine morphological variables were measured in 30 individuals per population. Sexual dimorphism was not detected for any of the variables. Significant differences among populations were found based on location and season of collection. Principal component analysis (PCA) and a dendrogram revealed that winter populations clustered together, showing intermediate morphological values and low variability across the three sampled localities. Populations collected during the growing season grouped into two distinct clusters: one comprising populations from the Chaco province and the other from the remaining locations. One-way ANOVA further supported these patterns, indicating significant differences among Anthonomus grandis grandis populations for “elytra length” and “total body length” variables. The results were discussed in relation to climatic conditions, cotton management practices, and alternative food sources, providing morphological records that could help optimize control strategies. Larger individuals, likely key reproducers, may require early control, whereas smaller ones may reflect suboptimal development due to limited nutritional resources or high intraspecific competition. These traits may also affect the survival of overwintering populations. Overall, these findings contribute to a better understanding of boll weevil population dynamics and their implications for integrated pest management.EEA Sáenz PeñaFil: García, Carolina V. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Sáenz Peña; ArgentinaFil: Tcach, Mauricio Alfredo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Sáenz Peña; ArgentinaFil: Simonella, Maria Alejandra. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Sáenz Peña; ArgentinaFil: Almada, Melina Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Reconquista; ArgentinaFil: Almada, Melina Soledad. Universidad Católica de Santa Fé. Facultad de Ciencias Agropecuarias; ArgentinaFil: González, Julio. Universidad Nacional del Chaco Austral; ArgentinaFil: Lanzavecchia, Silvia Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; ArgentinaFil: Lanzavecchia, Silvia Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; ArgentinaFil: Lanzavecchia, Silvia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Nussenbaum, Ana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; ArgentinaFil: Nussenbaum, Ana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; ArgentinaFil: Nussenbaum, Ana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Nussenbaum, Ana Laura. Universidad del Salvador. Facultad de Ciencias Agronómicas y Veterinarias; ArgentinaWiley2025-10-06T12:55:43Z2025-10-06T12:55:43Z2025-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/24074https://onlinelibrary.wiley.com/doi/10.1111/eea.700200013-87031570-7458https://doi.org/10.1111/eea.70020Entomologia Experimentalis et Applicata : 1-12 (First published: 1 October 2025)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repograntAgreement/INTA/2023-PD-L01-I087, Caracterización de la diversidad genética de plantas, animales y microorganismos mediante herramientas de genómica aplicada.info:eu-repograntAgreement/INTA/2023-PE-L01-I070, Aportes en el diseño y aplicación de tecnologías para el incremento de la productividad y sostenibilidad de la cadena algodonerainfo:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-10-16T09:32:37Zoai:localhost:20.500.12123/24074instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-16 09:32:38.225INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Morphological Variability of the Cotton Boll Weevil in the Principal Cotton-Growing Region of Argentina
title Morphological Variability of the Cotton Boll Weevil in the Principal Cotton-Growing Region of Argentina
spellingShingle Morphological Variability of the Cotton Boll Weevil in the Principal Cotton-Growing Region of Argentina
Garcia, Carolina Vanesa
Algodón
Plagas de Plantas
Gestión de Lucha Integrada
Argentina
Cotton
Plant Pests
Curculionidae
Gossypium hirsutum
Anthonomus grandis
Integrated Pest Management
Weevils
title_short Morphological Variability of the Cotton Boll Weevil in the Principal Cotton-Growing Region of Argentina
title_full Morphological Variability of the Cotton Boll Weevil in the Principal Cotton-Growing Region of Argentina
title_fullStr Morphological Variability of the Cotton Boll Weevil in the Principal Cotton-Growing Region of Argentina
title_full_unstemmed Morphological Variability of the Cotton Boll Weevil in the Principal Cotton-Growing Region of Argentina
title_sort Morphological Variability of the Cotton Boll Weevil in the Principal Cotton-Growing Region of Argentina
dc.creator.none.fl_str_mv Garcia, Carolina Vanesa
Tcach, Mauricio Alfredo
Simonella, Maria Alejandra
Almada, Melina Soledad
González, Julio
Lanzavecchia, Silvia Beatriz
Nussenbaum, Ana Laura
author Garcia, Carolina Vanesa
author_facet Garcia, Carolina Vanesa
Tcach, Mauricio Alfredo
Simonella, Maria Alejandra
Almada, Melina Soledad
González, Julio
Lanzavecchia, Silvia Beatriz
Nussenbaum, Ana Laura
author_role author
author2 Tcach, Mauricio Alfredo
Simonella, Maria Alejandra
Almada, Melina Soledad
González, Julio
Lanzavecchia, Silvia Beatriz
Nussenbaum, Ana Laura
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Algodón
Plagas de Plantas
Gestión de Lucha Integrada
Argentina
Cotton
Plant Pests
Curculionidae
Gossypium hirsutum
Anthonomus grandis
Integrated Pest Management
Weevils
topic Algodón
Plagas de Plantas
Gestión de Lucha Integrada
Argentina
Cotton
Plant Pests
Curculionidae
Gossypium hirsutum
Anthonomus grandis
Integrated Pest Management
Weevils
dc.description.none.fl_txt_mv The cotton boll weevil (Anthonomus grandis grandis Boheman) (Coleoptera: Curculionidae) is the main pest of the cotton (Gossypium hirsutum Linnaeus) (Malvaceae) crop in South America. First reported in Argentina in 1993, it rapidly dispersed throughout the main cotton-growing region, severely impacting the crop production. However, little is known about the external morphometry and variability of these populations. The main objective of the present study was to assess morphological variability among five boll weevil populations collected in the main cotton-growing region of Argentina during two seasons (winter and growing seasons) using traditional morphometry. Nine morphological variables were measured in 30 individuals per population. Sexual dimorphism was not detected for any of the variables. Significant differences among populations were found based on location and season of collection. Principal component analysis (PCA) and a dendrogram revealed that winter populations clustered together, showing intermediate morphological values and low variability across the three sampled localities. Populations collected during the growing season grouped into two distinct clusters: one comprising populations from the Chaco province and the other from the remaining locations. One-way ANOVA further supported these patterns, indicating significant differences among Anthonomus grandis grandis populations for “elytra length” and “total body length” variables. The results were discussed in relation to climatic conditions, cotton management practices, and alternative food sources, providing morphological records that could help optimize control strategies. Larger individuals, likely key reproducers, may require early control, whereas smaller ones may reflect suboptimal development due to limited nutritional resources or high intraspecific competition. These traits may also affect the survival of overwintering populations. Overall, these findings contribute to a better understanding of boll weevil population dynamics and their implications for integrated pest management.
EEA Sáenz Peña
Fil: García, Carolina V. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Sáenz Peña; Argentina
Fil: Tcach, Mauricio Alfredo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Sáenz Peña; Argentina
Fil: Simonella, Maria Alejandra. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Sáenz Peña; Argentina
Fil: Almada, Melina Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Reconquista; Argentina
Fil: Almada, Melina Soledad. Universidad Católica de Santa Fé. Facultad de Ciencias Agropecuarias; Argentina
Fil: González, Julio. Universidad Nacional del Chaco Austral; Argentina
Fil: Lanzavecchia, Silvia Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina
Fil: Lanzavecchia, Silvia Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Fil: Lanzavecchia, Silvia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Nussenbaum, Ana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina
Fil: Nussenbaum, Ana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Fil: Nussenbaum, Ana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Nussenbaum, Ana Laura. Universidad del Salvador. Facultad de Ciencias Agronómicas y Veterinarias; Argentina
description The cotton boll weevil (Anthonomus grandis grandis Boheman) (Coleoptera: Curculionidae) is the main pest of the cotton (Gossypium hirsutum Linnaeus) (Malvaceae) crop in South America. First reported in Argentina in 1993, it rapidly dispersed throughout the main cotton-growing region, severely impacting the crop production. However, little is known about the external morphometry and variability of these populations. The main objective of the present study was to assess morphological variability among five boll weevil populations collected in the main cotton-growing region of Argentina during two seasons (winter and growing seasons) using traditional morphometry. Nine morphological variables were measured in 30 individuals per population. Sexual dimorphism was not detected for any of the variables. Significant differences among populations were found based on location and season of collection. Principal component analysis (PCA) and a dendrogram revealed that winter populations clustered together, showing intermediate morphological values and low variability across the three sampled localities. Populations collected during the growing season grouped into two distinct clusters: one comprising populations from the Chaco province and the other from the remaining locations. One-way ANOVA further supported these patterns, indicating significant differences among Anthonomus grandis grandis populations for “elytra length” and “total body length” variables. The results were discussed in relation to climatic conditions, cotton management practices, and alternative food sources, providing morphological records that could help optimize control strategies. Larger individuals, likely key reproducers, may require early control, whereas smaller ones may reflect suboptimal development due to limited nutritional resources or high intraspecific competition. These traits may also affect the survival of overwintering populations. Overall, these findings contribute to a better understanding of boll weevil population dynamics and their implications for integrated pest management.
publishDate 2025
dc.date.none.fl_str_mv 2025-10-06T12:55:43Z
2025-10-06T12:55:43Z
2025-10
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/20.500.12123/24074
https://onlinelibrary.wiley.com/doi/10.1111/eea.70020
0013-8703
1570-7458
https://doi.org/10.1111/eea.70020
url http://hdl.handle.net/20.500.12123/24074
https://onlinelibrary.wiley.com/doi/10.1111/eea.70020
https://doi.org/10.1111/eea.70020
identifier_str_mv 0013-8703
1570-7458
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repograntAgreement/INTA/2023-PD-L01-I087, Caracterización de la diversidad genética de plantas, animales y microorganismos mediante herramientas de genómica aplicada.
info:eu-repograntAgreement/INTA/2023-PE-L01-I070, Aportes en el diseño y aplicación de tecnologías para el incremento de la productividad y sostenibilidad de la cadena algodonera
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv Entomologia Experimentalis et Applicata : 1-12 (First published: 1 October 2025)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 13.221938

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