Coffee under threat
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CTA. 1997. Coffee under threat. Spore 71. CTA, Wageningen, The Netherlands.
Permanent link to this item: http://hdl.handle.net/10568/48857
Tracheomycosis or vascular wilt disease (Fusarium xylarioides) of toffee bas re-emerged as one of the most significant threats to the coffee industry in Central Africa. The fungus initially causes a characteristic spiral yellowing of the leaves...
Tracheomycosis or vascular wilt disease (Fusarium xylarioides) of toffee bas re-emerged as one of the most significant threats to the coffee industry in Central Africa. The fungus initially causes a characteristic spiral yellowing of the leaves which later becomes general and eventually causes the tree to die. Diseased trees have to be burnt and the soil disinfected The International Coffee Organisation (ICO) requested that the International Mycological Institute (IMI) prepare an independent report on the nature and extent of the disease in Zaire. It was agreed that the lack of basic knowledge of this disease required urgent attention and that the ICO, together with the IMI, should submit a project for consideration by the Common Fund for Commodities (CFC). A similar survey was subsequently undertaken in Uganda in order to gain further information for the project application to the CFC. A question that the project will be endeavouring to answer is why this disease has re-emerged after 40 years. One possibility is that the pathogen bas mutated to a more aggressive form. Changes in the environment or a combination of factors could also account for its re-emergence. [caption to illustration] Dead coffee trees, the result of infection by Fusarium xylarioides Dr Julie Flood, International Mycological Institute Bakeham Lane, Egham, Surrey TW20 9TY, UK