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Suitability and Profitability of a Cereal Aphid for the Parasitoid Aphidius platensis in the Context of Conservation Biological Control of Myzus persicae in Orchards

The use of cover crops can promote the abundance and early arrival of populations of natural enemies. Cereal cover crops between orchards rows could encourage the early arrival of the parasitoid Aphidius platensis, as they offer alternative winter hosts (e.g., Rhopalosiphum padi), enhancing the cont...

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Autores principales: Alvarez-Baca, Jeniffer K., Alfaro-Tapia, Armando, Lavandero, Blas, Le Lann, Cécile, Van Baaren, Joan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7349642/
https://www.ncbi.nlm.nih.gov/pubmed/32575581
http://dx.doi.org/10.3390/insects11060381
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author Alvarez-Baca, Jeniffer K.
Alfaro-Tapia, Armando
Lavandero, Blas
Le Lann, Cécile
Van Baaren, Joan
author_facet Alvarez-Baca, Jeniffer K.
Alfaro-Tapia, Armando
Lavandero, Blas
Le Lann, Cécile
Van Baaren, Joan
author_sort Alvarez-Baca, Jeniffer K.
collection PubMed
description The use of cover crops can promote the abundance and early arrival of populations of natural enemies. Cereal cover crops between orchards rows could encourage the early arrival of the parasitoid Aphidius platensis, as they offer alternative winter hosts (e.g., Rhopalosiphum padi), enhancing the control of Myzus persicae in spring. However, the preference for and suitability of the alternative host must be addressed beforehand. To evaluate the potential of this strategy, we assessed host preference using behavioural choice tests, as well as no-choice tests measuring fitness traits, when developing on both host species. One source field for each aphid population from the above hosts was chosen. There was a clear choice for R. padi compared to M persicae, independently of the source, probably due to more defensive behaviours of M. persicae (i.e., kicks and escapes). Nevertheless, both aphid species were suitable for parasitoids’ development. The female progeny developed on R. padi were larger in size, irrespective of their origin. According to our results, in peach orchards with cereals sown between peach trees during the autumn, where we expect when R. padi populations will no longer be available during spring, A. platensis should be able to switch to M. persicae.
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spelling pubmed-73496422020-07-15 Suitability and Profitability of a Cereal Aphid for the Parasitoid Aphidius platensis in the Context of Conservation Biological Control of Myzus persicae in Orchards Alvarez-Baca, Jeniffer K. Alfaro-Tapia, Armando Lavandero, Blas Le Lann, Cécile Van Baaren, Joan Insects Article The use of cover crops can promote the abundance and early arrival of populations of natural enemies. Cereal cover crops between orchards rows could encourage the early arrival of the parasitoid Aphidius platensis, as they offer alternative winter hosts (e.g., Rhopalosiphum padi), enhancing the control of Myzus persicae in spring. However, the preference for and suitability of the alternative host must be addressed beforehand. To evaluate the potential of this strategy, we assessed host preference using behavioural choice tests, as well as no-choice tests measuring fitness traits, when developing on both host species. One source field for each aphid population from the above hosts was chosen. There was a clear choice for R. padi compared to M persicae, independently of the source, probably due to more defensive behaviours of M. persicae (i.e., kicks and escapes). Nevertheless, both aphid species were suitable for parasitoids’ development. The female progeny developed on R. padi were larger in size, irrespective of their origin. According to our results, in peach orchards with cereals sown between peach trees during the autumn, where we expect when R. padi populations will no longer be available during spring, A. platensis should be able to switch to M. persicae. MDPI 2020-06-19 /pmc/articles/PMC7349642/ /pubmed/32575581 http://dx.doi.org/10.3390/insects11060381 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Alvarez-Baca, Jeniffer K.
Alfaro-Tapia, Armando
Lavandero, Blas
Le Lann, Cécile
Van Baaren, Joan
Suitability and Profitability of a Cereal Aphid for the Parasitoid Aphidius platensis in the Context of Conservation Biological Control of Myzus persicae in Orchards
title Suitability and Profitability of a Cereal Aphid for the Parasitoid Aphidius platensis in the Context of Conservation Biological Control of Myzus persicae in Orchards
title_full Suitability and Profitability of a Cereal Aphid for the Parasitoid Aphidius platensis in the Context of Conservation Biological Control of Myzus persicae in Orchards
title_fullStr Suitability and Profitability of a Cereal Aphid for the Parasitoid Aphidius platensis in the Context of Conservation Biological Control of Myzus persicae in Orchards
title_full_unstemmed Suitability and Profitability of a Cereal Aphid for the Parasitoid Aphidius platensis in the Context of Conservation Biological Control of Myzus persicae in Orchards
title_short Suitability and Profitability of a Cereal Aphid for the Parasitoid Aphidius platensis in the Context of Conservation Biological Control of Myzus persicae in Orchards
title_sort suitability and profitability of a cereal aphid for the parasitoid aphidius platensis in the context of conservation biological control of myzus persicae in orchards
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7349642/
https://www.ncbi.nlm.nih.gov/pubmed/32575581
http://dx.doi.org/10.3390/insects11060381
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