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Asian Journal of Biology

Asian Journal of Biology, 2456-7124,Vol.: 3, Issue.: 1


Occurrence of Cassava Mosaic Disease Related to Agro-ecosystem in Farmer’s Fields located in Kongo Central Province, Democratic Republic of Congo


M. Muengula-Manyi1,2,3*, A. Ngombo2, A. Kalonji1, P. Tshiendesha-Musokandu4, S. Dekwize-Diakabi5, R. Kayembe1, N. Kalonji1, D. Dianda3, J. G. Kasongo3,

E. Tshibangu3, P. Tshilenge-Djim1,2 and A. Kalonji-Mbuyi1,2,6

1Phytopathology Unit, Faculty of Agronomy, University of Kinshasa, P.O.Box 117, Kinshasa XI, Democratic Republic of Congo.

2Department of Crop Production, Faculty of Agronomy, University of Kinshasa, P.O.Box 117, Kinshasa XI, Democratic Republic of Congo.

3Faculty of Agronomy, Protestant University in the Heart of Congo, P.O.Box 856, Mbuji-Mayi, Democratic Republic of Congo.

4Higher Institute of Agronomic Studies of Kamponde, P.O.Box 187, Kananga, Kasai Central Province, Democratic Republic of Congo.

5Higher Institute of Rural Development of Lwiza, Kasai Central Province, Democratic Republic of Congo.

6Regional Nuclear Energy Center of Kinshasa (CREN-K), P.O.Box 868, Kinshasa XI, Democratic Republic of Congo.


Article Information
(1) Xing Li, Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic College of Medicine, USA.
(1) Zinga Innocent, University of Bangui, Central African Republic.
(2) Andrew Sarkodie Appiah, Biotechnology and Nuclear Agriculture Research Institute, Ghana.
Complete Peer review History: http://www.sciencedomain.org/review-history/20033




Aim: To assess the Cassava Mosaic Disease (CMD) pressure by analyzing its incidence, severity and gravity, and to characterize agro-ecosystems where cassava farmers’ fields are established.

Place and Duration: The study was conducted in three different localities (Mvuazi, Ndembo and Pompage) in Kongo Central province, Democratic Republic of Congo, from June to December 2016. 

Methodology: One hundred and fifty farmers’ fields randomly selected were investigated during epidemiological survey, with 50 fields in each locality. In each field selected, 30 cassava plants randomly selected in a square of 10 m x 10 m were analyzed. The CMD incidence, severity and gravity were collected, and agronomic and environmental factors relative to cassava fields were analyzed.

Results: In general, CMD was observed in the three localities, with pressure depending upon to localities and fields. The distance between two neighboring fields could vary from 5 to 35 or even 50m. Pathological parameters show significant difference (P = .05) among fields for the same locality. The lowest pressure was recorded in Mvuazi locality (with 12.8% for incidence, score 2 for severity, and 15% for gravity), while the highest pressure was recorded in Pompage (with 20% for incidence, score 3 for severity, and 32% for gravity). Data recorded on agro-environmental factors show that farmers of the three localities used almost the same agricultural practices. Analysis of data reported suggest that the origin and the type of cassava material cuttings used can play a principal role in the propagation and development of CMD in most of cassava cultivation regions.      

Conclusion: The results of the present study revealed that CMD was present in different localities surveyed, and its pressure varies among localities, and from one field to another for the same locality. Agricultural practices used by farmers can play an important role in the propagation of CMD in different regions of cassava cultivation.


Keywords :

Cassava mosaic disease; farmers’ fields; agro-ecosystem; Kongo Central province; DR-Congo.


Full Article - PDF    Page 1-7    Article Metrics


DOI : 10.9734/AJOB/2017/34302

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