Population development of Ophelimus gall wasps and their parasitoid Closterocerus chamaeleon in eucalyptus trees of the pampean region in Buenos aires

Autores
Buyatti, Rocio Antonela; Hernandez, Carmen Marcela; Cándas, Lucas; Andorno, Andrea Veronica; López, Silvia Noemi
Año de publicación
2024
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Presentación en diapositivas y resumen en inglés
Several species of insects native to Australia and associated with eucalyptus trees have become major pests after invading different regions of the world. One example is the gall-inducing species of the genus Ophelimus. In 2013, Ophelimus maskelli was detected in Argentina along with its parasitoid, Closterocerus chamaeleon. In 2017, a second unidentified species, Ophelimus sp., was also recordedd. This study aimed to assess the abundance, attack levels of Ophelimus species, and parasitism rates by C. chamaeleon in eucalyptus plantations across the Pampa region of Buenos Aires province. Monthly sampling was conducted from August 2022 to January 2024 in three locations: Castilla (plantations of E. grandis x E. camaldulensis (GC)), Castelar (E. viminalis, E. benthamii, and E. dunnii), and 25 de Mayo (E. cinerea, E. viminalis and E. tereticornis). In each plantation, 10 trees were randomly selected from which two branches (30- 40 cm) from the lower third of the canopy were collected. The number of galls per leaf (abundance) and the number of leaves with galls (attack level) were recorded. Parasitism rates were calculated based on the emergence of adults (pests and parasitoids). Data were analyzed using generalized linear mixed models (GLMMs), with Tweedie distribution for gall abundance and Bernoulli distribution for the proportion of affected leaves. The results showed that O. maskelli was found on GC hybrids and E. tereticornis, while Ophelimus sp. affected E. viminalis, E. cinerea, E. benthamii, and E. dunnii In Castilla, the GC24 clone had the highest abundance, peaking in February and March 2023, while GC9 had a peak between April and June 2023. In general, GC24 had a higher proportion of attacked leaves, except in April 2023 when no significant differences were observed. In Castelar, E. benthamii and E. viminalis showed higher gall abundance than E. dunnii. Significant differences were found between E. benthamii and E. dunnii in January, February, and December 2023. The overall attack level was similar among species, except in February and March 2023, when E. dunnii had a lower proportion of attacked leaves. In 25 de Mayo, gall abundance and attack levels were significantly higher in E. cinerea and E. tereticornis compared to E. viminalis during most of the sampling period. The parasitoid C. chamaeleon had parasitism rates above 96% on O. maskelli, but below 9% on Ophelimus sp. These results suggest different levels of susceptibility to Ophelimus pests in different eucalyptus species. The study also confirms that C. chamaeleon is primarily associated with O. maskelli, but further research is needed to understand its relationship with Ophelimus sp.
Instituto de Microbiología y Zoología Agrícola (IMYZA)
Fil: Buyatti, Rocio Antonela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina
Fil: Buyatti, Rocio Antonela. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina
Fil: Hernández, Carmen Marcela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina
Fil: Candás, Lucas. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina
Fil: Andorno, Andrea Veronica. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina
Fil: López, Silvia Noemi. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina
Fuente
XXVI Jornada Anual de la Sociedad Argentina de Biología. CABA, Argentina, 4 al 6 de diciembre de 2024
Materia
Control Biológico
Plagas
Biological Control
Pests
Nivel de accesibilidad
acceso abierto
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:20.500.12123/28304
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oai_identifier_str oai:localhost:20.500.12123/28304
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network_name_str INTA Digital (INTA)
spelling Population development of Ophelimus gall wasps and their parasitoid Closterocerus chamaeleon in eucalyptus trees of the pampean region in Buenos airesDesarrollo poblacional de avispas agalladoras del género Ophelimus y su parasitoide Closterocerus chamaeleon en eucaliptos de la región pampeana bonaerenseBuyatti, Rocio AntonelaHernandez, Carmen MarcelaCándas, LucasAndorno, Andrea VeronicaLópez, Silvia NoemiControl BiológicoPlagasBiological ControlPestsPresentación en diapositivas y resumen en inglésSeveral species of insects native to Australia and associated with eucalyptus trees have become major pests after invading different regions of the world. One example is the gall-inducing species of the genus Ophelimus. In 2013, Ophelimus maskelli was detected in Argentina along with its parasitoid, Closterocerus chamaeleon. In 2017, a second unidentified species, Ophelimus sp., was also recordedd. This study aimed to assess the abundance, attack levels of Ophelimus species, and parasitism rates by C. chamaeleon in eucalyptus plantations across the Pampa region of Buenos Aires province. Monthly sampling was conducted from August 2022 to January 2024 in three locations: Castilla (plantations of E. grandis x E. camaldulensis (GC)), Castelar (E. viminalis, E. benthamii, and E. dunnii), and 25 de Mayo (E. cinerea, E. viminalis and E. tereticornis). In each plantation, 10 trees were randomly selected from which two branches (30- 40 cm) from the lower third of the canopy were collected. The number of galls per leaf (abundance) and the number of leaves with galls (attack level) were recorded. Parasitism rates were calculated based on the emergence of adults (pests and parasitoids). Data were analyzed using generalized linear mixed models (GLMMs), with Tweedie distribution for gall abundance and Bernoulli distribution for the proportion of affected leaves. The results showed that O. maskelli was found on GC hybrids and E. tereticornis, while Ophelimus sp. affected E. viminalis, E. cinerea, E. benthamii, and E. dunnii In Castilla, the GC24 clone had the highest abundance, peaking in February and March 2023, while GC9 had a peak between April and June 2023. In general, GC24 had a higher proportion of attacked leaves, except in April 2023 when no significant differences were observed. In Castelar, E. benthamii and E. viminalis showed higher gall abundance than E. dunnii. Significant differences were found between E. benthamii and E. dunnii in January, February, and December 2023. The overall attack level was similar among species, except in February and March 2023, when E. dunnii had a lower proportion of attacked leaves. In 25 de Mayo, gall abundance and attack levels were significantly higher in E. cinerea and E. tereticornis compared to E. viminalis during most of the sampling period. The parasitoid C. chamaeleon had parasitism rates above 96% on O. maskelli, but below 9% on Ophelimus sp. These results suggest different levels of susceptibility to Ophelimus pests in different eucalyptus species. The study also confirms that C. chamaeleon is primarily associated with O. maskelli, but further research is needed to understand its relationship with Ophelimus sp.Instituto de Microbiología y Zoología Agrícola (IMYZA)Fil: Buyatti, Rocio Antonela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); ArgentinaFil: Buyatti, Rocio Antonela. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); ArgentinaFil: Hernández, Carmen Marcela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); ArgentinaFil: Candás, Lucas. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); ArgentinaFil: Andorno, Andrea Veronica. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); ArgentinaFil: López, Silvia Noemi. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); ArgentinaSociedad Argentina de Biología2026-10-29T16:59:47Z2026-10-29T16:59:47Z2024-12-04info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfhttp://hdl.handle.net/20.500.12123/28304XXVI Jornada Anual de la Sociedad Argentina de Biología. CABA, Argentina, 4 al 6 de diciembre de 2024XXVI Jornada Anual de la Sociedad Argentina de Biología. CABA, Argentina, 4 al 6 de diciembre de 2024reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo: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)2026-11-05T11:51:42Zoai:localhost:20.500.12123/28304instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2026-11-05 11:51:42.665INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Population development of Ophelimus gall wasps and their parasitoid Closterocerus chamaeleon in eucalyptus trees of the pampean region in Buenos aires
Desarrollo poblacional de avispas agalladoras del género Ophelimus y su parasitoide Closterocerus chamaeleon en eucaliptos de la región pampeana bonaerense
title Population development of Ophelimus gall wasps and their parasitoid Closterocerus chamaeleon in eucalyptus trees of the pampean region in Buenos aires
spellingShingle Population development of Ophelimus gall wasps and their parasitoid Closterocerus chamaeleon in eucalyptus trees of the pampean region in Buenos aires
Buyatti, Rocio Antonela
Control Biológico
Plagas
Biological Control
Pests
title_short Population development of Ophelimus gall wasps and their parasitoid Closterocerus chamaeleon in eucalyptus trees of the pampean region in Buenos aires
title_full Population development of Ophelimus gall wasps and their parasitoid Closterocerus chamaeleon in eucalyptus trees of the pampean region in Buenos aires
title_fullStr Population development of Ophelimus gall wasps and their parasitoid Closterocerus chamaeleon in eucalyptus trees of the pampean region in Buenos aires
title_full_unstemmed Population development of Ophelimus gall wasps and their parasitoid Closterocerus chamaeleon in eucalyptus trees of the pampean region in Buenos aires
title_sort Population development of Ophelimus gall wasps and their parasitoid Closterocerus chamaeleon in eucalyptus trees of the pampean region in Buenos aires
dc.creator.none.fl_str_mv Buyatti, Rocio Antonela
Hernandez, Carmen Marcela
Cándas, Lucas
Andorno, Andrea Veronica
López, Silvia Noemi
author Buyatti, Rocio Antonela
author_facet Buyatti, Rocio Antonela
Hernandez, Carmen Marcela
Cándas, Lucas
Andorno, Andrea Veronica
López, Silvia Noemi
author_role author
author2 Hernandez, Carmen Marcela
Cándas, Lucas
Andorno, Andrea Veronica
López, Silvia Noemi
author2_role author
author
author
author
dc.subject.none.fl_str_mv Control Biológico
Plagas
Biological Control
Pests
topic Control Biológico
Plagas
Biological Control
Pests
dc.description.none.fl_txt_mv Presentación en diapositivas y resumen en inglés
Several species of insects native to Australia and associated with eucalyptus trees have become major pests after invading different regions of the world. One example is the gall-inducing species of the genus Ophelimus. In 2013, Ophelimus maskelli was detected in Argentina along with its parasitoid, Closterocerus chamaeleon. In 2017, a second unidentified species, Ophelimus sp., was also recordedd. This study aimed to assess the abundance, attack levels of Ophelimus species, and parasitism rates by C. chamaeleon in eucalyptus plantations across the Pampa region of Buenos Aires province. Monthly sampling was conducted from August 2022 to January 2024 in three locations: Castilla (plantations of E. grandis x E. camaldulensis (GC)), Castelar (E. viminalis, E. benthamii, and E. dunnii), and 25 de Mayo (E. cinerea, E. viminalis and E. tereticornis). In each plantation, 10 trees were randomly selected from which two branches (30- 40 cm) from the lower third of the canopy were collected. The number of galls per leaf (abundance) and the number of leaves with galls (attack level) were recorded. Parasitism rates were calculated based on the emergence of adults (pests and parasitoids). Data were analyzed using generalized linear mixed models (GLMMs), with Tweedie distribution for gall abundance and Bernoulli distribution for the proportion of affected leaves. The results showed that O. maskelli was found on GC hybrids and E. tereticornis, while Ophelimus sp. affected E. viminalis, E. cinerea, E. benthamii, and E. dunnii In Castilla, the GC24 clone had the highest abundance, peaking in February and March 2023, while GC9 had a peak between April and June 2023. In general, GC24 had a higher proportion of attacked leaves, except in April 2023 when no significant differences were observed. In Castelar, E. benthamii and E. viminalis showed higher gall abundance than E. dunnii. Significant differences were found between E. benthamii and E. dunnii in January, February, and December 2023. The overall attack level was similar among species, except in February and March 2023, when E. dunnii had a lower proportion of attacked leaves. In 25 de Mayo, gall abundance and attack levels were significantly higher in E. cinerea and E. tereticornis compared to E. viminalis during most of the sampling period. The parasitoid C. chamaeleon had parasitism rates above 96% on O. maskelli, but below 9% on Ophelimus sp. These results suggest different levels of susceptibility to Ophelimus pests in different eucalyptus species. The study also confirms that C. chamaeleon is primarily associated with O. maskelli, but further research is needed to understand its relationship with Ophelimus sp.
Instituto de Microbiología y Zoología Agrícola (IMYZA)
Fil: Buyatti, Rocio Antonela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina
Fil: Buyatti, Rocio Antonela. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina
Fil: Hernández, Carmen Marcela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina
Fil: Candás, Lucas. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina
Fil: Andorno, Andrea Veronica. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina
Fil: López, Silvia Noemi. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMyZA); Argentina
description Presentación en diapositivas y resumen en inglés
publishDate 2024
dc.date.none.fl_str_mv 2024-12-04
2026-10-29T16:59:47Z
2026-10-29T16:59:47Z
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/28304
XXVI Jornada Anual de la Sociedad Argentina de Biología. CABA, Argentina, 4 al 6 de diciembre de 2024
url http://hdl.handle.net/20.500.12123/28304
identifier_str_mv XXVI Jornada Anual de la Sociedad Argentina de Biología. CABA, Argentina, 4 al 6 de diciembre de 2024
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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 openAccess
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 Sociedad Argentina de Biología
publisher.none.fl_str_mv Sociedad Argentina de Biología
dc.source.none.fl_str_mv XXVI Jornada Anual de la Sociedad Argentina de Biología. CABA, Argentina, 4 al 6 de diciembre de 2024
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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