Modelling the effect of multi-year aphid infestation production in perennial trees

Bevacqua Daniele, Génard Michel, Lescourret Françoise, Grechi Isabelle. 2016. Modelling the effect of multi-year aphid infestation production in perennial trees. In : XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): International Symposia on the Physiology of Perennial Fruit Crops and Production Systems and Mechanisation, Precision Horticulture and Robot. Tustin D.S. (ed.), van Hooijdonk B.M. (ed.). Louvain : ISHS, 215-218. (ISHS Acta horticulturae, 1130) ISBN 978-94-62611-44-3 International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014). 29, Brisbane, Australie, 17 Août 2014/22 Août 2014.

Résumé : Aphids are commonly considered major agricultural pests because of their ability to alter host plant physiology and impair foliar growth. However, their effect on fruit production in perennial trees did not receive wide attention and few existing works have mainly focused on plant-aphid dynamics in a single growing season (i.e., few months). We modified an existing process based model for the peach tree Prunus persica - aphid Myzus persicae pathosystem, explicitly considering interactions between the two species under the influence of cultural practices (i.e., winter pruning and nitrogen fertilization), in order to consider multi-year dynamics. The new multi-year model suggests that consequences of aphid infestation, in terms of fruit production, become evident only when considering multi-year dynamics.

Classification Agris : H10 - Ravageurs des plantes
U10 - Informatique, mathématiques et statistiques

Auteurs et affiliations

• Bevacqua Daniele, INRA (FRA)
• Génard Michel, INRA (FRA)
• Lescourret Françoise, INRA (FRA)
• Grechi Isabelle, CIRAD-PERSYST-UPR HortSys (REU) ORCID: 0000-0002-3399-6102

Source : Cirad-Agritrop (https://agritrop.cirad.fr/582687/)

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