Aphid predators in citrus crops: the least voracious predators are the most effective

Rich and abundant predator complexes are frequently associated with aphids in perennial agroecosystems. The ability of these predators to successfully suppress aphid populations is nevertheless highly variable. The development of operative conservation biological control strategies is mostly hinde...

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Main Authors: Bouvet, Juan Pedro Raúl, Urbaneja, Alberto, Monzó, César
Format: Artículo
Language:Inglés
Published: Springer Verlag 2020
Subjects:
Online Access:http://hdl.handle.net/20.500.11939/6639
https://link.springer.com/article/10.1007/s10340-020-01265-z#article-info
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author Bouvet, Juan Pedro Raúl
Urbaneja, Alberto
Monzó, César
author_browse Bouvet, Juan Pedro Raúl
Monzó, César
Urbaneja, Alberto
author_facet Bouvet, Juan Pedro Raúl
Urbaneja, Alberto
Monzó, César
author_sort Bouvet, Juan Pedro Raúl
collection ReDivia
description Rich and abundant predator complexes are frequently associated with aphids in perennial agroecosystems. The ability of these predators to successfully suppress aphid populations is nevertheless highly variable. The development of operative conservation biological control strategies is mostly hindered by the lack of knowledge of the specific roles of the aphidophagous assemblage components, their intra-guild relationships and the predatory attributes that chiefly determine their effectiveness. The role of predation in the biological control of aphids in perennial agroecosystems was assessed through exclusion experiments in aphid infested citrus crops. Important predator attributes such as recruitment, aphid consumption rates, and foraging strategies were related to their efficacy. Predation greatly affected aphid colony phenology as well as size. Predators with lower aphid consumption rates (Micro-coccinellid species and Cecidomyiidae) were revealed to be the most efficient aphidophaga. These predators encountered aphid colonies at earlier colony stages and significantly reduced their population growth rates. Later more voracious aphidophaga groups (Chrysopidae and Macro-coccinellids) did not present effective biological control of the colonies. Contrarily to what was widely believed, the less voracious aphidophaga groups such as the Micro-coccinellids and Cecidomyiids are probably the groups who are mostly responsible for aphid suppression. Future conservation biological control studies in this crop should therefore chiefly focus on these groups.
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spelling ReDivia66392025-04-25T14:47:30Z Aphid predators in citrus crops: the least voracious predators are the most effective Bouvet, Juan Pedro Raúl Urbaneja, Alberto Monzó, César Conservation biological control Exclusion Intra-guild interactions H10 Pests of plants Citrus Agroecosystems Rich and abundant predator complexes are frequently associated with aphids in perennial agroecosystems. The ability of these predators to successfully suppress aphid populations is nevertheless highly variable. The development of operative conservation biological control strategies is mostly hindered by the lack of knowledge of the specific roles of the aphidophagous assemblage components, their intra-guild relationships and the predatory attributes that chiefly determine their effectiveness. The role of predation in the biological control of aphids in perennial agroecosystems was assessed through exclusion experiments in aphid infested citrus crops. Important predator attributes such as recruitment, aphid consumption rates, and foraging strategies were related to their efficacy. Predation greatly affected aphid colony phenology as well as size. Predators with lower aphid consumption rates (Micro-coccinellid species and Cecidomyiidae) were revealed to be the most efficient aphidophaga. These predators encountered aphid colonies at earlier colony stages and significantly reduced their population growth rates. Later more voracious aphidophaga groups (Chrysopidae and Macro-coccinellids) did not present effective biological control of the colonies. Contrarily to what was widely believed, the less voracious aphidophaga groups such as the Micro-coccinellids and Cecidomyiids are probably the groups who are mostly responsible for aphid suppression. Future conservation biological control studies in this crop should therefore chiefly focus on these groups. 2020-10-14T08:34:46Z 2020-10-14T08:34:46Z 2020 article submittedVersion Bouvet, J.P.R., Urbaneja, A. & Monzó, C. (2021) Aphid predators in citrus crops: the least voracious predators are the most effective. J Pest Sci 94, 321–333. 1612-4758 http://hdl.handle.net/20.500.11939/6639 10.1007/s10340-020-01265-z https://link.springer.com/article/10.1007/s10340-020-01265-z#article-info en Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ embargoedAccess Springer Verlag electronico
spellingShingle Conservation biological control
Exclusion
Intra-guild interactions
H10 Pests of plants
Citrus
Agroecosystems
Bouvet, Juan Pedro Raúl
Urbaneja, Alberto
Monzó, César
Aphid predators in citrus crops: the least voracious predators are the most effective
title Aphid predators in citrus crops: the least voracious predators are the most effective
title_full Aphid predators in citrus crops: the least voracious predators are the most effective
title_fullStr Aphid predators in citrus crops: the least voracious predators are the most effective
title_full_unstemmed Aphid predators in citrus crops: the least voracious predators are the most effective
title_short Aphid predators in citrus crops: the least voracious predators are the most effective
title_sort aphid predators in citrus crops the least voracious predators are the most effective
topic Conservation biological control
Exclusion
Intra-guild interactions
H10 Pests of plants
Citrus
Agroecosystems
url http://hdl.handle.net/20.500.11939/6639
https://link.springer.com/article/10.1007/s10340-020-01265-z#article-info
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