Photo 1. Symptoms of cassava brown streak disease mostly following the the secondary veins, and the veins from them.
Cassava brown streak disease
Cassava brown streak virus and Ugandan cassava brown streak virus are the cause of the disease. The abbreviations of these viruses are CBSV and UCBSV), respectively. The virus particles are flexuous rods, about 650 nm. Severe and mild isolates exist.
AUTHOR Grahame Jackson
Information from 1CABI (2019) Cassava brown streak virus (cassava brown streak disease). Crop Protection Compendium. (http://www.cabi.org/cpc); and Tomlinson KR et al. (2018) Cassava brown streak disease: historical timeline, current knowledge and future prospects. Molecular Plant Pathology 19(5):1282-1294. (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5947582/); and Amisse JJG et al. (2019) First rreport of cassava brown streak viruses on wild plant species in Mozambique. Physiological and Molecular Plant Pathology 105:88-95. (https://doi.org/10.1016/j.pmpp.2018.10.005); and from Cassava brown streak disease: control measures, Uganda. National Crops Research Institute, Namulonge, Kampala, Uganda. Food and Agriculture Organization of the United Nations. (http://www.fao.org/3/CA2940EN/ca2940en.pdf). Photos 1-5,&7,8 Stephen Winter, Department of Virology, DSMZ-German Collection of Microorganisms and Cell Cultures, Braunschweig, Lower Saxony, Germany. Photo 6 Abigail Rumsey International Institute of Tropical Agriculture (Flickr). Ibadan, Nigeria. Photo 9 H. Holmes/RTB Cassava mosaic disease (CMD) symptoms in a field in Tanzania. Root, Tubers and Bananas. CGIAR.
Produced with support from the Australian Centre for International Agricultural Research under project HORT/2016/185: Responding to emerging pest and disease threats to horticulture in the Pacific islands, implemented by the University of Queensland and the Secretariat of the Pacific.
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