Complementarity among natural enemies enhances pest suppression

Abstract Natural enemies have been shown to be effective agents for controlling insect pests in crops. However, it remains unclear how different natural enemy guilds contribute to the regulation of pests and how this might be modulated by landscape context. In a field exclusion experiment in oilseed...

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Autores principales:	Matteo Dainese, Gudrun Schneider, Jochen Krauss, Ingolf Steffan-Dewenter
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6642a54e98d04277923bb24118a66d8e
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spelling	oai:doaj.org-article:6642a54e98d04277923bb24118a66d8e2021-12-02T12:32:05ZComplementarity among natural enemies enhances pest suppression10.1038/s41598-017-08316-z2045-2322https://doaj.org/article/6642a54e98d04277923bb24118a66d8e2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08316-zhttps://doaj.org/toc/2045-2322Abstract Natural enemies have been shown to be effective agents for controlling insect pests in crops. However, it remains unclear how different natural enemy guilds contribute to the regulation of pests and how this might be modulated by landscape context. In a field exclusion experiment in oilseed rape (OSR), we found that parasitoids and ground-dwelling predators acted in a complementary way to suppress pollen beetles, suggesting that pest control by multiple enemies attacking a pest during different periods of its occurrence in the field improves biological control efficacy. The density of pollen beetle significantly decreased with an increased proportion of non-crop habitats in the landscape. Parasitism had a strong effect on pollen beetle numbers in landscapes with a low or intermediate proportion of non-crop habitats, but not in complex landscapes. Our results underline the importance of different natural enemy guilds to pest regulation in crops, and demonstrate how biological control can be strengthened by complementarity among natural enemies. The optimization of natural pest control by adoption of specific management practices at local and landscape scales, such as establishing non-crop areas, low-impact tillage, and temporal crop rotation, could significantly reduce dependence on pesticides and foster yield stability through ecological intensification in agriculture.Matteo DaineseGudrun SchneiderJochen KraussIngolf Steffan-DewenterNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Matteo Dainese Gudrun Schneider Jochen Krauss Ingolf Steffan-Dewenter Complementarity among natural enemies enhances pest suppression
description	Abstract Natural enemies have been shown to be effective agents for controlling insect pests in crops. However, it remains unclear how different natural enemy guilds contribute to the regulation of pests and how this might be modulated by landscape context. In a field exclusion experiment in oilseed rape (OSR), we found that parasitoids and ground-dwelling predators acted in a complementary way to suppress pollen beetles, suggesting that pest control by multiple enemies attacking a pest during different periods of its occurrence in the field improves biological control efficacy. The density of pollen beetle significantly decreased with an increased proportion of non-crop habitats in the landscape. Parasitism had a strong effect on pollen beetle numbers in landscapes with a low or intermediate proportion of non-crop habitats, but not in complex landscapes. Our results underline the importance of different natural enemy guilds to pest regulation in crops, and demonstrate how biological control can be strengthened by complementarity among natural enemies. The optimization of natural pest control by adoption of specific management practices at local and landscape scales, such as establishing non-crop areas, low-impact tillage, and temporal crop rotation, could significantly reduce dependence on pesticides and foster yield stability through ecological intensification in agriculture.
format	article
author	Matteo Dainese Gudrun Schneider Jochen Krauss Ingolf Steffan-Dewenter
author_facet	Matteo Dainese Gudrun Schneider Jochen Krauss Ingolf Steffan-Dewenter
author_sort	Matteo Dainese
title	Complementarity among natural enemies enhances pest suppression
title_short	Complementarity among natural enemies enhances pest suppression
title_full	Complementarity among natural enemies enhances pest suppression
title_fullStr	Complementarity among natural enemies enhances pest suppression
title_full_unstemmed	Complementarity among natural enemies enhances pest suppression
title_sort	complementarity among natural enemies enhances pest suppression
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/6642a54e98d04277923bb24118a66d8e
work_keys_str_mv	AT matteodainese complementarityamongnaturalenemiesenhancespestsuppression AT gudrunschneider complementarityamongnaturalenemiesenhancespestsuppression AT jochenkrauss complementarityamongnaturalenemiesenhancespestsuppression AT ingolfsteffandewenter complementarityamongnaturalenemiesenhancespestsuppression
_version_	1718394161718099968

Complementarity among natural enemies enhances pest suppression

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