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Pest incidence and biological regulations in an apple tree-based agroforestry system

Abstract : AgroForestry (AF) represents an opportunity to increase the resilience and sustainability of current production systems, and promote pest regulation by increasing the plant diversity, especially for fruit production. Inspired from multi-strata tropical AgroForestry Systems (AFS) with perennials and based on the assumption that shade trees can benefit to fruit trees by mitigating microclimatic stresses, an INRA innovative system have been developedby the joint research unit SYSTEM Tropical and Mediterranean Cropping System Functioning and Management. Apple trees were planted as an intermediate stratum under a walnut tree upper stratum. Impact of such design on pest dynamics, Natural Enemies (NE) and biological regulations have not been addressed for the moment. This work is integrated in this effort of knowledge acquirement. We especially focused on Dysaphis plantaginea, Aphis sp, Cydia pomonella for pests, and on NE present in apple tree canopy and D. plantaginea colonies. This work is divided into two parts that are dealt separately: 1) Assessment of the impact of AF context on pests, NE and biological regulations. 2) Proposal of enrichment in AgroEcological Infrastructures (AEI) in order to enhance pest control.After presenting the knowledge background of this study, the context, scientific question and hypothesis are presented. For part one, the material and methods developed to answer the question is explained. Results are then presented and discussed. To finish, part two makesthe diagnosis of existing AEI in the current AFS and propose enrichment of AEI.
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https://hal.inrae.fr/hal-03030303
Contributor : Pierre-Eric Lauri <>
Submitted on : Monday, November 30, 2020 - 8:07:25 AM
Last modification on : Saturday, March 20, 2021 - 3:11:20 AM

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  • HAL Id : hal-03030303, version 1

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Camille Perseval, Manuel Plantegenest, Pierre-Éric Lauri. Pest incidence and biological regulations in an apple tree-based agroforestry system. [Internship report] INRAE. 2019, 149 p. ⟨hal-03030303⟩

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