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Title: | Not all field margins are equally useful: Effects of the vegetation structure of margins on cereal aphids and their natural enemies |
Author: | Salat-Moltó, Agnès Caballero López, Berta Pérez-Hidalgo, Nicolás Michelena, José M. Ferrer Suay, Mar Guerrieri, Emilio Blanco Moreno, José Manuel |
Keywords: | Control biològic Afídids Relacions insecte-planta Biological control Aphididae Insect-plant relationships |
Issue Date: | 3-Feb-2023 |
Publisher: | MDPI |
Abstract: | Differences in the semi-natural vegetation of field margins will affect the biological control services derived from the presence of these semi-natural habitats adjacent to fields. Of the plant functional traits that are most relevant for insects, plant life forms reflect different aspects of plant structure and functioning that can help predict the value of marginal vegetation for arthropods in agricultural systems. The aim of this study was to determine the effect of the vegetation structure of field margins on cereal aphids and on some of their natural enemies (parasitoids, hoverflies and ladybugs) in terms of plant life forms. We characterized margin vegetation using the relative cover of each life form and sampled insects in crops along transects parallel to field margins. Our results show that in the studied areas, the abundance of natural enemies was greater near margins dominated by annual plants than in margins dominated by perennial plants. On the other hand, the abundances of aphids and parasitism rates were higher near margins dominated by perennial woody plants than near margins dominated by perennial herbaceous plants. By promoting specific life forms in existing margins, farmers can enhance the conservation biological control and relieve aphid pressure on their crops. |
Note: | Reproducció del document publicat a: https://doi.org/10.3390/insects14020156 |
It is part of: | Insects, 2023, vol. 14, num. 2, p. 1-13 |
URI: | http://hdl.handle.net/2445/199444 |
Related resource: | https://doi.org/10.3390/insects14020156 |
ISSN: | 2075-4450 |
Appears in Collections: | Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) |
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