Survey of banana bunchy top virus in southern Mozambique

Résumé

Banana bunchy top virus (BBTV) has been recently recorded in Mozambique and threatens economic viability of banana production in this country. Research on BBTV in the region is still initial, and collective effort is required to support efficient control measures. Surveys were made in four administrative areas of the Chóckwè district, Gaza Province, to determine the incidence and distribution of the virus. Samples were collected from two banana cultivars in 23 production fields where the plants had characteristic virus symptoms. DNA was extracted from these samples and subjected to BBTV detection using polymerase chain reaction technology. BBTV was detected in 19 of the 23 sampled fields, with overall mean incidence of 54.3%, and minimum incidence of 20%. No infected plants were found in the fields of one farm. These results highlight the urgency to initiate strategies for control of BBTV in Mozambique.

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