Coffee disease risk analysis: How epidemiology knowledge could help in assessing and preventing disease invasion : [PA611]

Bieysse Daniel, Cilas Christian, Mouen J., Musoli Chungason Pascal, Avelino Jacques. 2008. Coffee disease risk analysis: How epidemiology knowledge could help in assessing and preventing disease invasion : [PA611]. In : 22nd International Conference on Coffee Science. ASIC. Montpellier : ASIC, 1422-1423. ISBN 2-900212-21-9 International Conference on Coffee Science. 22, Campinas, Brésil, 14 Septembre 2008/19 Septembre 2008.

Résumé : Plant diseases can be classified into two types: (i) the co-evolved diseases which have evolved with the host in its centre of origin and (ii) the new encounter diseases which have resulted from the adaptation of a native pathogen to an introduced crop. Coffee is under the threat of both kinds of diseases mainly due to increasing South-South trade. This situation could lead to the introduction to new territories of co-evolved diseases like Coffee Wilt Disease (CWD caused by Fusarium xylarioides) confined so far to Africa, or of encounter diseases like Coffee Berry Disease (CBD caused by Colletotrihum kahawae) only present in Africa and the American Leaf Spot Disease (ALSD caused by Mycena citricolor) located in America only. Moreover, the recent occurrence of Xylella fastidiosa on coffee in Brasil in 1995, causing the Coffee Leaf Scorch, points out the possibility of the emergence of new encounter diseases on the crop. Through the analysis of the historical expansion pathways of the main coffee diseases, their current distribution and the epidemiological knowledge on the pathosystems, we propose different strategies in order to prevent the introduction of diseases to new territories and to decrease the risk of wide and severe expansions in case of an introduction. A special emphasis will be given to CBD, CWD and ALSD.

Mots-clés Agrovoc : Coffea, contrôle de maladies, épidémiologie, analyse du risque

Classification Agris : H20 - Maladies des plantes

Auteurs et affiliations

• Bieysse Daniel, CIRAD-BIOS-UMR BGPI (FRA)
• Cilas Christian, CIRAD-BIOS-UPR Bioagresseurs de pérennes (FRA)
• Mouen J., IRAD (CMR)
• Musoli Chungason Pascal, NARO (UGA)
• Avelino Jacques, CIRAD-BIOS-UPR Bioagresseurs de pérennes (CRI) ORCID: 0000-0003-1983-9431

Source : Cirad - Agritrop (https://agritrop.cirad.fr/549613/)

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