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15 December 2015

Cassava mosaic.

Abstract

Although cassava shows resilience against a myriad of pests and diseases, including several of viral aetiology, two virus disease complexes, cassava brown streak disease and cassava mosaic disease (CMD), are the major yield-limiting biotic constraints to its production in sub-Sahara Africa. Subsequent studies have recorded the occurrence of many virus species, all of which belong to the genus Begomovirus (family Geminiviridae), in CMD-affected plants. This chapter presents the symptopms, causative viruses, epidemiology, economic impact, monitoring and management of CMD. The genome structure, function and diversity, host range, transmission, detection and distribution of the causal agent are also described. An integrated approach that takes into consideration 'traditional' versus 'novel', 'ancient' versus 'modern', and 'conventional' versus 'unconventional' solutions will hold better promise for a comprehensive ecologically friendly and economically sustainable CMD management effort in sub-Saharan Africa. In line with this, largely neglected components of the CMG-cassava pathosystem such as volunteer cassava plants and alternative hosts of CMGs, abundance of natural enemies of Bemisia tabaci and the use of transgenic resistance will need to form part of an overall CMD management strategy.

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Information & Authors

Information

Published In

Pages: 56 - 72
Editors: P. Tennant [email protected], Department of Plant Pathology & Microbiology Texas A&M AgriLife Research and Extension Center Weslaco TX 78596 USA and G. Fermin
CABI Plant Protection Series, No.3
ISBN (ePDF): 978-1-78064-427-1
ISBN (ePub): 978-1-78064-757-9
ISBN (Hardback): 978-1-78064-426-4

History

Cover date: 2015
Published online: 15 December 2015

Language

English

Authors

Affiliations

O. J. Alabi [email protected]
Department of Plant Pathology & Microbiology Texas A&M AgriLife Research and Extension Center Weslaco TX 78596 USA

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Citing Literature

  • East African cassava mosaic virus, CABI Compendium, 10.1079/cabicompendium.20402, CABI Compendium, (2017).

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