Controlling African cassava mosaic disease
MetadataShow full item record
CTA. 1991. Controlling African cassava mosaic disease. Spore 32. CTA, Wageningen, The Netherlands.
Permanent link to this item: http://hdl.handle.net/10568/45474
Controlling African cassava mosaic disease CTA has published a 20-page booklet, written by John Guthrie
AIthough cassava is often regarded primarily as a famine reserve, there has been increasing realization in recent years of its value as a high-yielding source of staple carbohydrate. Its cultivation has increased considerably during this century, and there is now a greater area under cassava in Africa than in all other cassava growing areas of the world combined. However the average yield of cassava in Africa, seven to eight tonnes per hectare, is far below the crop's potential. The most important single reason for this is probably the widespread presence of African cassava mosaic disease. CTA has published a 20-page booklet, written by John Guthrie, which examines the occurrence and effects of the disease. Two main methods of control are discussed: using varieties which are resistant or tolerant to the disease, and using sanitation techniques which involve taking cuttings only from healthy plants and subsequently removing any plants which become diseased. The booklet also looks at other pest and disease problems and concludes with an illustrated description of propagation techniques. In view of the growing importance of cassava in Africa, it is essential that African cassava mosaic disease is brought under control. Sanitation techniques carefully applied, can be a cheap, effective route to this objective.