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Murithi, H.M.Beed, Fen D.Tukamuhabwa, PhinehasThomma, B.P.Joosten, M.H.[Soybean production in eastern and southern Africa and threat of yield loss due to soybean rust caused by Phakopsora pachyrhizi]Soybean production in eastern and southern Africa and threat of yield loss due to soybean rust caused by Phakopsora pachyrhizi

Isolates of Sphaceloma manihoticola, the asexual stage of Elsinoe brasiliensis, were collected from several regions of south-central Brazil. The isolates were obtained from samples of leaves, stems, and petioles of cassava (Manihot esculenta) and the weedy Euphorbia heterophylla ( amendoim bravo ...


Álvarez, E.Mejía De Los Rios, J.F.Valle, T.L.[Molecular and pathogenicity characterization of Sphaceloma manihoticola isolates from South-Central Brazil]Molecular and pathogenicity characterization of Sphaceloma manihoticola isolates from South-Central Brazil

Strains of Xanthomonas campestris pv. vignicola (Xcv), isolated from cowpea leaves with blight or minute pustules and collected from various geographic areas, were selected on the basis of pathological and physiological features. All strains were analyzed for genotypic markers by two methods: rib...


Verdier, ValérieAssigbétsé, K.Khatri-Chhetri, G.Wydra, K.Ruldoph, KGeiger, JP[Molecular characterization of the incitant of cowpea bacterial blight and pustule, Xanthomonas campestris pv. vignicola]Molecular characterization of the incitant of cowpea bacterial blight and pustule, Xanthomonas campestris pv. vignicola

During part of the dry season in 1996 (November to December), surveys were made for incidence of root and stem rot in 99 fields of cassava (Manihot esculenta Crantz) randomly selected between latitudes 6°36′N and 7°49′N in Benin (79 fields) and Nigeria (20 fields). Root rot was observed in 65 fie...


Msikita, W.Yaninek, John S.Ahounou, M.Baimey, H.Fagbemissi, R.[First report of Nattrassia mangiferae root and stem rot of cassava in West Africa]First report of Nattrassia mangiferae root and stem rot of cassava in West Africa

The reaction of cowpea to infection by Macrophomina phaseolina isolates, from leguminous plants in Nigeria, was investigated at Ibadan, southwestern Nigeria. M. phaseolina isolates obtained from six different leguminous species induced necrotic lesions of varying sizes on two cowpea varieties, IT...


Amusa, N.A.Okechukwu, R.Akinfenwa, B.[Reactions of cowpea to infection by Macrophomina phaseolina isolates from leguminous plants in Nigeria]Reactions of cowpea to infection by Macrophomina phaseolina isolates from leguminous plants in Nigeria
Álvarez, ElizabethLlano Rodríguez, Germán AlbertoLoke, John BernardChacón Sánchez, María I.[Characterization of Thielaviopsis paradoxa isolates from oil palm in Colombia, Ecuador and Brazil]Characterization of Thielaviopsis paradoxa isolates from oil palm in Colombia, Ecuador and Brazil
Ocimati, W.Nakato, G.V.Fiaboe, K.K.M.Beed, Fen D.Blomme, Guy[Incomplete systemic movement of Xanthomonas campestris pv. musacearum and the occurrence of latent infections in xanthomonas wilt-infected banana mats]Incomplete systemic movement of Xanthomonas campestris pv. musacearum and the occurrence of latent infections in xanthomonas wilt-infected banana mats

Introduction: Taro leaf blight disease cause by Phytophtora colocasiae has become an economic disease in Cocoyam growing regions of Cameroon. Aims: To screen for resistance 10 improved and 4 local cultivars of taro against taro leaf blight disease. Study Design: A randomized complete block design...


Fokunang, C.N.Mbong, G.Manju, E.Tembe-Fokunang, E.A.Hanna, R.[Screen house and field resistance of taro cultivars to taro leaf blight disease (Phytophtora colocasiae)]Screen house and field resistance of taro cultivars to taro leaf blight disease (Phytophtora colocasiae)
Pastor Corrales, Marcial A.[Traditional and molecular confirmation of the coevolution of beans and pathogens in Latin America]Traditional and molecular confirmation of the coevolution of beans and pathogens in Latin America

The pathogenicity of Wesselsbron virus was investigated in West African Dwarf goats infected subcutaneously with the Nigerian strain of the virus. All infected goats were susceptible to infection. Two of the infected animals developed an acute disease with death occurring within 5-8 days post ino...


Baba, S.S.Fagbami, A.H.Olaleye, O.D.[Clinical and pathological responses of West African Dwarf goats (Fouta Djallon) infected with Nigerian strains of Wesselsbron virus]Clinical and pathological responses of West African Dwarf goats (Fouta Djallon) infected with Nigerian strains of Wesselsbron virus

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