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La disponibilite de vastes terres en friche constitue un immense potentiel de production des arbres fruitiers et autres especes arboricoles dans la region du Nord, mais l’absence de connaissance sur le fonctionnement des exploitations fruitieres a entraine le desinteressement des producteurs fruitiers. Face a cette situation, une etude a ete realisee dans les quatre departements de la region du Nord a savoir la Benoue, le Faro, le Mayo-Louti et le Mayo-Rey en vue d’identifier les causes du deperissement et de proposer des solutions. L’approche methodologique par des questionnaires adoptes a permis de collecter des donnees aupres des proprietaires de vergers et suivi d’une descente sur le terrain pour les observations visuelles de ces vergers. Au terme de cette etude 58,2 % des exploitants sont adultes et 41,8% ne sont pas scolarises. On enregistre dix (10) especes d’arbres fruitiers cultivees, parmi lesquels on a les agrumes et les manguiers en majorite. Tout de meme 91% des producteurs sont proprietaires des terres et 48% l’ont obtenu par heritage alors que 23% par achat. La production annuelle est estimee a moins de 500 kg pour les 52,16% des producteurs enquetes et plus de 500 kg pour les 47,84%. Les principales contraintes rencontrees dans cette activite sont la non disponibilite des terres de qualite, les difficultes d’approvisionnement en eau, le cout eleve des engrais et des produits phytosanitaires et le manque des unites de transformation. Les vergers sont constitues d’arbres fruitiers non ameliores presentant des attaques. De ce fait il est important de vulgariser des varietes ameliorees des arbres fruitiers developpes par l’IRAD, et leur proposer des appuis techniques pour remedier aux differents problemes sanitaires.  Mots cles : Diagnostic, verger, fruitiers, especes arboricoles, contrainte, Nord-Cameroun. English  Title : Diagnosis of the exploitation mode and major constraints of orchards in fruits and other arboreal species in the North Cameroon region The availability of wide fallow lands constitutes a good potential of production of fruits trees and others arboricultural species in Northern region of Cameroon. The lack of knowledge on functioning of exploitation of fruits trees and leads the disinterestedness of producers. Facing this situation, studies was realized in four departments in Northern region: Benoue, Faro, Mayo-Louti and Mayo-Rey at the aim of identify causes of this decay and to propose solutions. Investigations done by using questionnaire helps to collect data from orchard owner following by field trip for visual observation in these orchards. From this study, we figured out that 58.2% of farmers were adults with 41.8% unschooled. Among these producers, 76% practiced combine agriculture with maize as main crop at 38%. Ten species of fruits trees were registered with citrus and mango as the most cultivated. However, 91% of producers were owner of their lands and 48% obtained these lands through inheritance and 23% by buying. The annual production was estimated as at least 500 kg for producers interviewed and more than 500 kg for 47.87% others producers. The principal constraint facing in this activity were the non- availability of good lands, difficulties to get water, the high cost of fertilizers and phytosanitary products and the lack of transformation unity. Orchard was constituted to unimproved fruits trees with several pest attacks. So, it is important to vulgarize improved variety of fruits trees developed by IRAD and provide some technical support to remedy various health problems. Keywords : diagnostics, orchard, fruits tree, arboricultural species, constraint, Northern-Cameroon

Diagnostic du mode d’exploitation et contraintes majeures des vergers fruitiers et autres espèces arboricoles dans la région du Nord Cameroun