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Effect of management spontaneous cover crop on rosy apple aphid, green apple aphid and their natural enemies in an apple organic orchard

Alins, Georgina; Alegre, Simó and Avilla, Jesús (2007) Effect of management spontaneous cover crop on rosy apple aphid, green apple aphid and their natural enemies in an apple organic orchard. Poster at: 3rd QLIF Congress: Improving Sustainability in Organic and Low Input Food Production Systems, University of Hohenheim, Germany, March 20-23, 2007.

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Summary

Cover crops have been reported as shelters for pest but also for natural enemies. Nevertheless, there is not agreement about their influence on pest presence on apple trees. An experiment was conducted in 2004-2006 in an IRTA-Estació Experimental de Lleida organic apple orchard located in Les Borges Blanques (Lleida, Spain) in order to evaluate the influence of cover crops on the presence of pest and natural enemies on apple trees. Three cover crops were tested and compared to a bare soil: (1) spontaneous cover crop where Plantago lanceolata L. was the most abundant specie, (2) no-mowed spontaneous cover crop, (3) spontaneous cover crop mowed when weeds were 30 cm tall. Cover crops tested affected neither the presence the rosy apple aphid nor aphid natural enemies. Nevertheless, the green apple aphid was more abundant in bare soil trees than in cover crop trees.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:rosy apple aphid, green apple aphid, natural enemies
Subjects: Crop husbandry > Crop health, quality, protection
Research affiliation: International Conferences > 2007: 3rd QLIF Congress > 3 Crop production / soil management
Deposited By: Alins, Ms Georgina
ID Code:9894
Deposited On:05 Mar 2007
Last Modified:12 Apr 2010 07:34
Document Language:English
Status:Published
Refereed:Not peer-reviewed
Additional Publishing Information:The final version of this paper is published in:
Niggli, Urs; Leifert, Carlo; Alföldi, Thomas; Lück, Lorna and Willer, Helga, Eds. (2007) Improving Sustainability in Organic and Low Input Food Production Systems. Proceedings of the 3rd International Congress of the European Integrated Project Quality Low Input Food (QLIF). University of Hohenheim, Germany, March 20 – 23, 2007. Research Institute of Organic Agriculture FiBL, CH-Frick.http://orgprints.org/10417/
Printed copies may be ordered from the FiBL Shop at www.shop.fibl.org.

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