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- W2008537112 abstract "A severe black pod disease of cocoa in Ghana caused by Phytophthora megakarya was first reported in 1985, even though there is evidence that the fungus might have existed earlier. Until then, only Phytophthora palmivora which causes a less severe black pod disease was known in Ghana. P. megakarya has changed the status of black pod disease in Ghana, causing serious crop losses and great concern among farmers. The distribution, disease characteristics and spread of P. megakarya, the black pod disease incidence and effects on yield of cocoa in Ghana, are reviewed. Records of cocoa sales and data from on-farm farmer-managed control trials have been presented to illustrate cocoa-yield patterns in P. palmivora and P. megakarya-affected districts. Problems associated with the control of black pod disease caused by P. megakarya, and the measures developed for its management are also discussed. Because black pod disease caused by P. megakarya poses a serious threat to cocoa production in Ghana, efforts should be made by all stakeholders to ensure its effective management. Phytophthora megakarya: Une menace potentielle à l' industrie de cacao au Ghana Résumé Une maladie grave de cosse noire du cacao au Ghana causée par Phytophthora megakarya était signalée pour la première fois en 1985, malgré le fait qu'il ait une évidence que le fongus aurait pu être présent avant cette date. Jusque-là, c'est seulement Phytophthora palmivora, qui est la cause d'une maladie moins grave de cosse noire, était connue au Ghana. P. megakarya a changé la situation de la maladie de cosse noire au Ghana, causant des pertes sévères des cultures et de grande inquiétude pour les cultivateurs. La distribution, les caractéristiques de maladie et propagation de P. megakarya, la situation de la maladie de cosse noire et son effet sur le rendement de cacao au Ghana sont passés en revue. Les rapports des ventes de cacao, et les données des essais de contrôle exploité par le cultivateur sur le champ ont été présenté pour illustrer les orientations de rendement de cacao dans les districts affectés par P. palmivora et P. megakarya. Les problèmes liés au contrôle de la maladie de cosse noire causés par P. megakarya et les démarches développées pour son contrôle sont également discutés. Puisque la maladie de cosse noire causée par P. megakarya pose une menace serieuse à la production de cacao au Ghana, des efforts doivent être fait par toutes les dépositaires d'enjeux pour assurer son contrôle efficace. Ghana Jnl agric. Sci. Vol.33(2) 2000: 237-248" @default.
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- W2008537112 date "2000-02-01" @default.
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- W2008537112 title "<i>Phytophthora megakarya</i>: A potential threat to the cocoa industry in Ghana" @default.
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- W2008537112 doi "https://doi.org/10.4314/gjas.v33i2.1876" @default.
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