Record Details

Viruses associated with cassava mosaic disease in Senegal and Guinea Conakry

CGSpace

View Archive Info
 
 
Field Value
 
Title Viruses associated with cassava mosaic disease in Senegal and Guinea Conakry
 
Creator Okao‐Okuja, G.
Legg, J.P.
Traore, L.
Jorge, M.A.
 
Subject CASSAVA MOSAIC VIRUS
GUINEA
SENEGAL
WHITEFLIES
VECTORS
BEMISIA TABACI
 
Description A survey in Senegal and Guinea Conakry established the presence and incidence of cassava mosaic virus disease (CMD) in both countries. CMD occurred in all the fields surveyed, although its incidence was higher in Senegal (83%) than in Guinea (64%). Populations of the whitefly vector, Bemisia tabaci, were low in both countries averaging 1.7 adults per shoot in Guinea and 3.2 in Senegal. Most infections were attributed to the use of infected cuttings, 86 and 83% in Senegal and Guinea, respectively, and there was no evidence of rapid current‐season, whitefly‐borne infection at any of the sampled locations. Disease severity was generally low in the two countries and averaged 2.5 in Guinea and 2.3 in Senegal. No plants with unusually severe CMD symptoms characteristic of the CMD pandemic in East and Central Africa were observed. Restriction fragment length polymorphism (RFLP)‐based diagnostics revealed that African cassava mosaic virus (ACMV) is exclusively associated with CMD in both the countries. Neither East African cassava mosaic virus (EACMV), nor the recombinant Uganda variant (EACMV‐UG2) was detected in any sample. These survey data indicate that CMD could be effectively controlled in both countries by phytosanitation, involving the use of CMD‐free planting material and the removal of diseased plants.
Peer Review
 
Date 2019-08-21T14:12:56Z
2019-08-21T14:12:56Z
2004
 
Type Journal Article
 
Identifier Okao‐Okuja, G., Legg, J.P., Traore, L. & Jorge, M.A. (2004). Viruses associated with cassava mosaic disease in Senegal and Guinea Conakry. Journal of Phytopathology, 152(2), 69-76.
0931-1785
https://hdl.handle.net/10568/103317
 
Language en