Combining lacewings and parasitoids for biological control of foxglove aphids in sweet pepper
- Autores
- Rocca, Margarita; Messelink, Gerben J.
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The role of natural enemy diversity in biological pest control has been debated in many studies, and understanding how interactions amongst predators and parasitoids affect herbivore populations is crucial for pest management. In this study, we assessed the individual and combined use of two species of natural enemies, the parasitoid Aphidius ervi Haliday, and the predatory brown lacewing Micromus variegatus (Fabricius), on their shared prey, the foxglove aphid, Aulacorthum solani (Kaltenbach), on sweet pepper. We hypothesized that the presence of intraguild predation (IGP) and predator facilitation (through induced aphid dropping behaviour) might have both negative and positive effects on aphid control, respectively. Our greenhouse trial showed that overall, the greatest suppression of aphids occurred in the treatment with both the parasitoid and the lacewing. While the combination of lacewings and parasitoids significantly increased aphid control compared to the use of parasitoids alone, the effect was not significantly different to the treatment with only predators, although there was a clear trend of enhanced suppression. Thus, the combined effects of both species of natural enemies were between additive and non-additive, suggesting that the combination is neither positive nor negative for aphid control. High levels of IGP, as proven in the laboratory, were probably compensated for by the strong aphid suppression provided by the lacewings, whether or not supplemented with some level of predator facilitation. For aphid management over a longer time scale, it might still be useful to combine lacewings and parasitoids to ensure stable and resilient aphid control.
Centro de Estudios Parasitológicos y de Vectores - Materia
-
Ciencias Naturales
Aphidius ervi
Aulacorthum solani
dropping behaviour
intraguild predation
Micromus variegatus
predator facilitation - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-nd/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/87662
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Combining lacewings and parasitoids for biological control of foxglove aphids in sweet pepperRocca, MargaritaMesselink, Gerben J.Ciencias NaturalesAphidius erviAulacorthum solanidropping behaviourintraguild predationMicromus variegatuspredator facilitationThe role of natural enemy diversity in biological pest control has been debated in many studies, and understanding how interactions amongst predators and parasitoids affect herbivore populations is crucial for pest management. In this study, we assessed the individual and combined use of two species of natural enemies, the parasitoid <i>Aphidius ervi</i> Haliday, and the predatory brown lacewing <i>Micromus variegatus</i> (Fabricius), on their shared prey, the foxglove aphid, <i>Aulacorthum solani</i> (Kaltenbach), on sweet pepper. We hypothesized that the presence of intraguild predation (IGP) and predator facilitation (through induced aphid dropping behaviour) might have both negative and positive effects on aphid control, respectively. Our greenhouse trial showed that overall, the greatest suppression of aphids occurred in the treatment with both the parasitoid and the lacewing. While the combination of lacewings and parasitoids significantly increased aphid control compared to the use of parasitoids alone, the effect was not significantly different to the treatment with only predators, although there was a clear trend of enhanced suppression. Thus, the combined effects of both species of natural enemies were between additive and non-additive, suggesting that the combination is neither positive nor negative for aphid control. High levels of IGP, as proven in the laboratory, were probably compensated for by the strong aphid suppression provided by the lacewings, whether or not supplemented with some level of predator facilitation. For aphid management over a longer time scale, it might still be useful to combine lacewings and parasitoids to ensure stable and resilient aphid control.Centro de Estudios Parasitológicos y de Vectores2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf402-410http://sedici.unlp.edu.ar/handle/10915/87662enginfo:eu-repo/semantics/altIdentifier/issn/0931-2048info:eu-repo/semantics/altIdentifier/doi/10.1111/jen.12355info:eu-repo/semantics/altIdentifier/hdl/11336/49126info: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:UNLP2025-09-29T11:17:14Zoai:sedici.unlp.edu.ar:10915/87662Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:17:14.351SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Combining lacewings and parasitoids for biological control of foxglove aphids in sweet pepper |
title |
Combining lacewings and parasitoids for biological control of foxglove aphids in sweet pepper |
spellingShingle |
Combining lacewings and parasitoids for biological control of foxglove aphids in sweet pepper Rocca, Margarita Ciencias Naturales Aphidius ervi Aulacorthum solani dropping behaviour intraguild predation Micromus variegatus predator facilitation |
title_short |
Combining lacewings and parasitoids for biological control of foxglove aphids in sweet pepper |
title_full |
Combining lacewings and parasitoids for biological control of foxglove aphids in sweet pepper |
title_fullStr |
Combining lacewings and parasitoids for biological control of foxglove aphids in sweet pepper |
title_full_unstemmed |
Combining lacewings and parasitoids for biological control of foxglove aphids in sweet pepper |
title_sort |
Combining lacewings and parasitoids for biological control of foxglove aphids in sweet pepper |
dc.creator.none.fl_str_mv |
Rocca, Margarita Messelink, Gerben J. |
author |
Rocca, Margarita |
author_facet |
Rocca, Margarita Messelink, Gerben J. |
author_role |
author |
author2 |
Messelink, Gerben J. |
author2_role |
author |
dc.subject.none.fl_str_mv |
Ciencias Naturales Aphidius ervi Aulacorthum solani dropping behaviour intraguild predation Micromus variegatus predator facilitation |
topic |
Ciencias Naturales Aphidius ervi Aulacorthum solani dropping behaviour intraguild predation Micromus variegatus predator facilitation |
dc.description.none.fl_txt_mv |
The role of natural enemy diversity in biological pest control has been debated in many studies, and understanding how interactions amongst predators and parasitoids affect herbivore populations is crucial for pest management. In this study, we assessed the individual and combined use of two species of natural enemies, the parasitoid <i>Aphidius ervi</i> Haliday, and the predatory brown lacewing <i>Micromus variegatus</i> (Fabricius), on their shared prey, the foxglove aphid, <i>Aulacorthum solani</i> (Kaltenbach), on sweet pepper. We hypothesized that the presence of intraguild predation (IGP) and predator facilitation (through induced aphid dropping behaviour) might have both negative and positive effects on aphid control, respectively. Our greenhouse trial showed that overall, the greatest suppression of aphids occurred in the treatment with both the parasitoid and the lacewing. While the combination of lacewings and parasitoids significantly increased aphid control compared to the use of parasitoids alone, the effect was not significantly different to the treatment with only predators, although there was a clear trend of enhanced suppression. Thus, the combined effects of both species of natural enemies were between additive and non-additive, suggesting that the combination is neither positive nor negative for aphid control. High levels of IGP, as proven in the laboratory, were probably compensated for by the strong aphid suppression provided by the lacewings, whether or not supplemented with some level of predator facilitation. For aphid management over a longer time scale, it might still be useful to combine lacewings and parasitoids to ensure stable and resilient aphid control. Centro de Estudios Parasitológicos y de Vectores |
description |
The role of natural enemy diversity in biological pest control has been debated in many studies, and understanding how interactions amongst predators and parasitoids affect herbivore populations is crucial for pest management. In this study, we assessed the individual and combined use of two species of natural enemies, the parasitoid <i>Aphidius ervi</i> Haliday, and the predatory brown lacewing <i>Micromus variegatus</i> (Fabricius), on their shared prey, the foxglove aphid, <i>Aulacorthum solani</i> (Kaltenbach), on sweet pepper. We hypothesized that the presence of intraguild predation (IGP) and predator facilitation (through induced aphid dropping behaviour) might have both negative and positive effects on aphid control, respectively. Our greenhouse trial showed that overall, the greatest suppression of aphids occurred in the treatment with both the parasitoid and the lacewing. While the combination of lacewings and parasitoids significantly increased aphid control compared to the use of parasitoids alone, the effect was not significantly different to the treatment with only predators, although there was a clear trend of enhanced suppression. Thus, the combined effects of both species of natural enemies were between additive and non-additive, suggesting that the combination is neither positive nor negative for aphid control. High levels of IGP, as proven in the laboratory, were probably compensated for by the strong aphid suppression provided by the lacewings, whether or not supplemented with some level of predator facilitation. For aphid management over a longer time scale, it might still be useful to combine lacewings and parasitoids to ensure stable and resilient aphid control. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/87662 |
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http://sedici.unlp.edu.ar/handle/10915/87662 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
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info:eu-repo/semantics/altIdentifier/issn/0931-2048 info:eu-repo/semantics/altIdentifier/doi/10.1111/jen.12355 info:eu-repo/semantics/altIdentifier/hdl/11336/49126 |
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info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
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