Abstract

Abstract Many fungi have been associated with Cola sp. One of the most important fungi implicated in cola diseases is Botryodiplodia theobromae which causes a hard black rot of nuts and a shoot die-back of the twigs. Some of the fungi which attack the nuts infect them at an early stage in the development of the fruit, but remain latent until conditions become favourable for disease development. Fomes spp., Phellinus spp. and Rigidoporus lignosus, are the major root pathogens causing rots which may lead to the death of the host. Virus diseases have been suspected on commercial cola, but transmission tests have so far failed to confirm their presence.

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