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Prevalence and severity of Nattrassia mangiferae root and stem pathogen of cassava in Benin

dc.contributor.authorMsikita, W.
dc.contributor.authorBissang, B.
dc.contributor.authorJames, B.
dc.contributor.authorBaimey, H.
dc.contributor.authorWilkinson, H.
dc.contributor.authorAhounou, M.
dc.contributor.authorFagbemissi, R.
dc.date.accessioned2019-12-04T11:19:02Z
dc.date.available2019-12-04T11:19:02Z
dc.date.issued2005
dc.identifier.citationMsikita, W., Bissang, B., James, B., Baimey, H., Wilkinson, H., Ahounou, M. & Fagbemissi, R. (2005). Prevalence and severity of Nattrassia mangiferae root and stem rot pathogen of cassava in Benin. Plant Disease, 89(1), 12-16.
dc.identifier.issn0191-2917
dc.identifier.urihttps://hdl.handle.net/20.500.12478/3382
dc.description.abstractRoot rot pathogens were found through diagnostic surveys in all departments (regions) of Bénin, West Africa, to affect 86 to 100% and 96 to 100% of cassava fields during the dry and rainy seasons, respectively. Disease incidence in individual fields ranged between 0 and 53%, and averaged 16 to 27% per department. Nattrassia mangiferae was consistently the most frequently isolated root rot pathogen (56% in the dry season and 22 to 52% in the rainy season). Pathogenicity of N. mangiferae was confirmed on four cultivars of cassava using stem cuttings and storage roots. For all four cultivars, N. mangiferae significantly reduced the number of roots. Lesions (3 to 15 cm long) formed on the lower stem portion of all inoculated plants, whereas control plants remained symptom free. On storage roots, the disease profile was similar to that formed on stem cuttings. Other root rot pathogens detected during the dry season were Macrophomina phaseolina (14.2%), Fusarium spp. (11.8%), Botryodiplodia theobromae (7.7%), and Pythium spp. (2.9%). During the rainy season, Fusarium spp. were the second most commonly isolated root rot pathogens in three departments (Atlantique, Borgou, and Mono). In Oueme and Zou, B. theobromae was the second most isolated root rot pathogen (ranging between 24 and 28%) during the rainy season. During the same season, Pythium spp. were pronounced in Borgou (18%), followed by Mono (11%), Atlantique (9%), Atacora (8%), Oueme (5%), and Zou (6%). Results of the study are discussed with a view to creating awareness of the destructive power of N. mangiferae, a hitherto poorly recognized root rot pathogen of cassava in Bénin and West Africa in general.
dc.language.isoen
dc.subjectDisease Resistance
dc.subjectSusceptibility
dc.subjectFusarium Species
dc.subjectCassava Root Rot Pathogens
dc.subjectNattrassia Mangiferae
dc.subjectCassava
dc.subjectAfrica Cassava Mosaic Disease
dc.subjectCassava Brown Streak
dc.titlePrevalence and severity of Nattrassia mangiferae root and stem pathogen of cassava in Benin
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationOhio State University
cg.contributor.affiliationUniversité du Bénin
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of Illinois
cg.coverage.regionAcp
cg.coverage.regionAfrica
cg.coverage.regionNorth America
cg.coverage.regionWest Africa
cg.coverage.countryUnited States
cg.coverage.countryBenin
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectPlant Production
cg.iitasubjectDisease Control
cg.iitasubjectCassava
cg.iitasubjectFarm Management
cg.iitasubjectGenetic Improvement
cg.iitasubjectHandling, Transport, Storage And Protection Of Agricultural Products
cg.iitasubjectLivelihoods
cg.iitasubjectPlant Breeding
cg.iitasubjectPests Of Plants
cg.accessibilitystatusOpen Access
local.dspaceid95056
cg.identifier.doihttps://dx.doi.org/10.1094/PD-89-0012


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