Acknowledgements
10.7. Conclusions
CWD has been and remains an important constraint of coffee production in Africa, and if not controlled, it could spread to affect coffee growing in other continents. Through concerted efforts, the previous epidemics in some Cen- tral and West African countries were controlled by developing and planting resistant varieties. Variety resistance is so far considered the most appropriate and effective method for controlling CWD. There has been enormous effort to develop more resistant varieties to control CWD in Uganda and Tanzania.
Through these works, possible sources of intra- and interspecific resistance have been identified. In both Uganda and Tanzania, a number of resistant C. ca- nephora genotypes have been identified, and Uganda in particular has already CWD clones fronted for release to farmers. Availability of these varieties will certainly help to revitalize the coffee production, not only in Uganda but also in neighbouring countries through regional cooperation, especially DRC and Tanzania. The authors hope that the highlights of challenges encountered by the breeding programmes since the re-emergence of CWD and the potential and actual procedures taken while trying to develop resistant varieties, given here, shall stand to be quick reference for future work when the same or simi- lar outbreaks occur again, whether in Africa or elsewhere. Some challenges remain: super CWD-resistant varieties have to be checked for complementary traits and adaptation for cultivation in a wide range of geographical locations, and another challenge is the continuing depletion of the gene pools caused by CWD, whether directly or indirectly. Uganda is at the centre of diversity for C.
canephora, so any threat to its diversity is a threat not only to Ugandan coffee production but also to the coffee sector as a whole.
Acknowledgements
We are grateful to the governments of Uganda, DRC, Tanzania and Ethio- pia and our national institutes, where the studies that provided information given in this chapter were conducted, for all the support provided while these studies were being carried out. We also thank the donor communi- ties, particularly the European Union, Common Fund for Commodities and United States Agency for International Development, for the financial sup- port given for the studies that led to the generation of the information given in here. Last but not least, we acknowledge CAB International Africa for fa- cilitating the writing up of this work.
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176 © CAB International 2009. Coffee Wilt Disease
11 Dissemination for Coffee Wilt Disease Management in Africa: Experiences
From Ethiopia
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1and D. Teshome
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