Associating cultivars or species with complementary traits is key for enhancing aphid control through bottom-up effects

Organic farming promotes diversification strategies to enhance ecological functions. However, early field studies suggested that not all cereal polycultures confer benefits in terms of pest control. Our research involved a trait-based field study to evaluate the advantages of different wheat polycul...

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Autores: Tous Fandos, Alba, Chamorro Lorenzo, Lourdes, Caballero López, Berta, Blanco Moreno, José Manuel, Bragg, Daniel, Casiraghi, Alice, Pérez-Ferrer, Alejandro, Sans, Xavier (Sans i Serra)
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/218841
Acceso en línea:https://hdl.handle.net/2445/218841
Access Level:acceso abierto
Palabra clave:Blat
Afídids
Control biològic de plagues
Conreus
Crops
Wheat
Aphididae
Biological pest control
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spelling Associating cultivars or species with complementary traits is key for enhancing aphid control through bottom-up effectsTous Fandos, AlbaChamorro Lorenzo, LourdesCaballero López, BertaBlanco Moreno, José ManuelBragg, DanielCasiraghi, AlicePérez-Ferrer, AlejandroSans, Xavier (Sans i Serra)BlatAfídidsControl biològic de plaguesConreusCropsWheatAphididaeBiological pest controlOrganic farming promotes diversification strategies to enhance ecological functions. However, early field studies suggested that not all cereal polycultures confer benefits in terms of pest control. Our research involved a trait-based field study to evaluate the advantages of different wheat polycultures on aphid control and yield. We also explored the bottom-up and top-down effects underlying aphid control. We established 10 treatments replicated in five organic fields: three wheat monocultures (Florence-Aurora [FA], Montcada [MO], and Forment [FO]), a mixture with similar-traits cultivars (FAMO), and a mixture with different-traits cultivars (FAFO), each duplicated with and without a burclover undersowing. We analyzed aphid abundance, number of aphids per tiller, parasitism rate, predatory arthropods' abundance, and crop yield. FAFO and burclover undersowing significantly lowered aphid abundance and the number of aphids per tiller on FA. However, the treatments did not affect the abundance of predators or parasitism rates. Finally, wheat yield was similar across treatments, except in 2021 season when FA yielded significantly less. Our findings suggest that polycultures' benefits on aphid control are cultivar specific. Mixing wheat cultivars with complementary functional traits (height and odor profile) and the association of wheat monoculture with a burclover undersowing enhances aphid control by bottom-up effects without compromising crop yield. Nevertheless, stacking the cultivar mixtures with burclover undersowing did not outperform the results of a single diversity practices, probably because of functional redundancy of resistant cultivars and burclover cover.The Ecological Society of America2025202520252025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion15 p.application/pdfhttps://hdl.handle.net/2445/218841Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.1002/ecs2.70076Ecosphere, 2025, vol. 16, num.2, p. 1-15https://doi.org/10.1002/ecs2.70076cc-by (c) Tous-Fandos, A. et al., 2025http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/2188412026-05-29T05:05:01Z
dc.title.none.fl_str_mv Associating cultivars or species with complementary traits is key for enhancing aphid control through bottom-up effects
title Associating cultivars or species with complementary traits is key for enhancing aphid control through bottom-up effects
spellingShingle Associating cultivars or species with complementary traits is key for enhancing aphid control through bottom-up effects
Tous Fandos, Alba
Blat
Afídids
Control biològic de plagues
Conreus
Crops
Wheat
Aphididae
Biological pest control
title_short Associating cultivars or species with complementary traits is key for enhancing aphid control through bottom-up effects
title_full Associating cultivars or species with complementary traits is key for enhancing aphid control through bottom-up effects
title_fullStr Associating cultivars or species with complementary traits is key for enhancing aphid control through bottom-up effects
title_full_unstemmed Associating cultivars or species with complementary traits is key for enhancing aphid control through bottom-up effects
title_sort Associating cultivars or species with complementary traits is key for enhancing aphid control through bottom-up effects
dc.creator.none.fl_str_mv Tous Fandos, Alba
Chamorro Lorenzo, Lourdes
Caballero López, Berta
Blanco Moreno, José Manuel
Bragg, Daniel
Casiraghi, Alice
Pérez-Ferrer, Alejandro
Sans, Xavier (Sans i Serra)
author Tous Fandos, Alba
author_facet Tous Fandos, Alba
Chamorro Lorenzo, Lourdes
Caballero López, Berta
Blanco Moreno, José Manuel
Bragg, Daniel
Casiraghi, Alice
Pérez-Ferrer, Alejandro
Sans, Xavier (Sans i Serra)
author_role author
author2 Chamorro Lorenzo, Lourdes
Caballero López, Berta
Blanco Moreno, José Manuel
Bragg, Daniel
Casiraghi, Alice
Pérez-Ferrer, Alejandro
Sans, Xavier (Sans i Serra)
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Blat
Afídids
Control biològic de plagues
Conreus
Crops
Wheat
Aphididae
Biological pest control
topic Blat
Afídids
Control biològic de plagues
Conreus
Crops
Wheat
Aphididae
Biological pest control
description Organic farming promotes diversification strategies to enhance ecological functions. However, early field studies suggested that not all cereal polycultures confer benefits in terms of pest control. Our research involved a trait-based field study to evaluate the advantages of different wheat polycultures on aphid control and yield. We also explored the bottom-up and top-down effects underlying aphid control. We established 10 treatments replicated in five organic fields: three wheat monocultures (Florence-Aurora [FA], Montcada [MO], and Forment [FO]), a mixture with similar-traits cultivars (FAMO), and a mixture with different-traits cultivars (FAFO), each duplicated with and without a burclover undersowing. We analyzed aphid abundance, number of aphids per tiller, parasitism rate, predatory arthropods' abundance, and crop yield. FAFO and burclover undersowing significantly lowered aphid abundance and the number of aphids per tiller on FA. However, the treatments did not affect the abundance of predators or parasitism rates. Finally, wheat yield was similar across treatments, except in 2021 season when FA yielded significantly less. Our findings suggest that polycultures' benefits on aphid control are cultivar specific. Mixing wheat cultivars with complementary functional traits (height and odor profile) and the association of wheat monoculture with a burclover undersowing enhances aphid control by bottom-up effects without compromising crop yield. Nevertheless, stacking the cultivar mixtures with burclover undersowing did not outperform the results of a single diversity practices, probably because of functional redundancy of resistant cultivars and burclover cover.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/218841
url https://hdl.handle.net/2445/218841
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1002/ecs2.70076
Ecosphere, 2025, vol. 16, num.2, p. 1-15
https://doi.org/10.1002/ecs2.70076
dc.rights.none.fl_str_mv cc-by (c) Tous-Fandos, A. et al., 2025
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Tous-Fandos, A. et al., 2025
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 15 p.
application/pdf
dc.publisher.none.fl_str_mv The Ecological Society of America
publisher.none.fl_str_mv The Ecological Society of America
dc.source.none.fl_str_mv Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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