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Pest-regulation service of the coffee berry borer (Hypothenemus hampei) in agroforestry systems

Roudine Sacha, Carval Dominique, Alcides Quintero Perez José, Bagny-Beilhe Leïla. 2019. Pest-regulation service of the coffee berry borer (Hypothenemus hampei) in agroforestry systems. In : 4th World Congress on Agroforestry. Book of abstracts. Dupraz Christian (ed.), Gosme Marie (ed.), Lawson Gerry (ed.), members of the Scientific Committee of the Congress. CIRAD, INRA, World Agroforestry, Agropolis International, MUSE. Montpellier : CIRAD-INRA, p. 798. World Congress on Agroforestry. 4, Montpellier, France, 20 May 2019/22 May 2019.

Poster
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Agroforestry2019-Book-of-Abstract-v1.pdf

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[img] Published version - Anglais
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Use under authorization by the author or CIRAD.
L22.P06_Roudine.pdf

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Matériel d'accompagnement : 1 poster

Abstract : The coffee berry borer (CBB) is one of the main pests affecting coffee production leading to significant yield losses. Pest control service within agroforestry systems (AF) results from complex biotic and abiotic interacting components. Factors explaining regulation of the CBB can interact with each other and have potential antagonistic effects. This explains many contradictory results for studies focusing on the impact of few factors on a single response variable. This is particularly true with the effect of shade on the CBB (Morris et al, 2018). This factor can directly affect CBB development but also indirectly by affecting the community of natural enemies. Studying this pest-regulation service requires therefore a systemic ap-proach. Here we developed structural equation models describing the interactions within these systems. Using data from three complex AF in Nicaragua and from an experimental farm in Costa Rica, we assessed the effects of environmental conditions and agricultural practices on the CBB, and on the diversity and abundance of predaceous ants (Fig 1). The area occupied by coffee-associated trees, the thermal amplitude and the shade were negatively related to CBB. Ant diversity and abundance were negatively related to coffee density, and positively related to CBB. While our results on a systemic scale confirm the potential of AF to provide a pest control and interesting management alternatives, it also reveals the difficulty of studying this service.

Mots-clés Agrovoc : Coffea, Arbre d'ombrage, Lutte biologique, Espacement

Mots-clés géographiques Agrovoc : Nicaragua, Costa Rica

Classification Agris : H10 - Pests of plants
F08 - Cropping patterns and systems
K10 - Forestry production

Auteurs et affiliations

  • Roudine Sacha, CATIE (CRI)
  • Carval Dominique, CIRAD-PERSYST-UPR GECO (FRA)
  • Alcides Quintero Perez José, CATIE (CRI)
  • Bagny-Beilhe Leïla, CIRAD-BIOS-UPR Bioagresseurs : analyse et maîtrise du risque (CRI)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/592821/)

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