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Heterogeneity of protected crop colonization by beneficial insects: role of crop management and landscape context Organic Eprints
Aviron, Stéphanie; Perraudin, M.; Redondo, S.; Varennes, Y-D.; Lefèvre, Amélie.
Enhancing insect pest control by their natural enemies is considered as a promising crop protection strategy in organic vegetable production systems. In Mediterranean areas, native natural enemies such as mirid bugs (Heteroptera: Miridae) settle spontaneously in protected vegetable crops and can play an important rolefor pest regulation, which remains however very heterogeneous from field to field and hardly predictable. The present study is part of the project REGABRI, which aims at identifying key factors of colonization of organic and conventional protected tomato crops by mirid bugs in Roussillon area. A first survey in 2010-2011 on 34 crops showed that mirids abundances in crops vary according to management practices and landscape features in the...
Tipo: Journal paper Palavras-chave: Biodiversity and ecosystem services Crop health; Quality; Protection.
Ano: 2013 URL: http://orgprints.org/26017/1/Aviron_2013_CIAG_Vol32.pdf
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Effect of organic and conventional practices on the insects natural enemies communities in agricultural landscapes Organic Eprints
Puech, Camille; Baudry, J.; Aviron, Stéphanie.
Food security and biodiversity conservation are among the main challenges of modern agriculture. Organic Farming (OF) is considered as a promising type of production to meet these challenges due to the use of alternative practices on organic systems. In particular, biological control of pests by their natural enemies is considered as a possible way to reduce pesticide use in Conventional Farming (CF). The aim of this work is to describe the diversity of practices on winter wheat in organic and conventional farms, and to understand their effects on natural enemies, at field and landscape scales. Entomological surveys and agronomic surveys were carried out in forty fields (twenty under OF and twenty under CF) located in different landscape contexts. The...
Tipo: Journal paper Palavras-chave: Biodiversity and ecosystem services Crop health; Quality; Protection.
Ano: 2013 URL: http://orgprints.org/26336/1/Puech_2013_CIAG_Vol32.pdf
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Ecological cross compliance promotes farmland biodiversity in Switzerland Organic Eprints
Aviron, Stéphanie; Nitsch, Heike; Jeanneret, Philippe; Buholzer, Serge; Luka, Henryk; Pfiffner, Lukas; Pozzi, Stefano; Schüpbach, Beatrice; Walter, Thomas; Herzog, Felix.
In ecological cross compliance, farmers have to meet environmental standards in order to qualify for area-related direct payments. Because this is a strong financial incentive, cross compliance is a potentially powerful policy instrument. We monitored the effectiveness of cross compliance in promoting biodiversity on grassland and on arable land in Switzerland over 8 years. We observed measurable benefits for flora, butterflies, ground beetles, and spiders, in terms of species numbers and/or community composition. However, populations of threatened species showed no signs of benefit. While cross compliance has been in force in Switzerland for almost a decade, it has only recently been introduced in the neighbouring European Union. We argue that – provided...
Tipo: Journal paper Palavras-chave: Biodiversity and ecosystem services; Policy environments and social economy.
Ano: 2009 URL: http://orgprints.org/17809/1/aviron%2Detal%2D2009%2Dfront%2Decol%2Denviron.pdf
Registros recuperados: 3
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